Mawer Investment Management Ltd.

$15.4B reported 13(f) long value · latest quarter 2026-03-31 · CIK 1538449 · EDGAR ↗

sum of disclosed values for 2026-03-31; 0 positions carry a NULL value and are excluded from the sum, surfaced here rather than folded away: $15.4B
ALL retained default holdings for this (filer, period), including NULL-value ones: 126
positions with no comparable holding in the prior quarter (kind new), 2026-03-31: 16
positions absent from this quarter's filing after being held last quarter (kind exit), 2026-03-31 — inferred from absence, not a sale record: 15

A quarter-end snapshot. Filed up to 45 days later, so this page is not current holdings and never a complete portfolio. what a 13F is — and is not ↓ methodology §13F ↗

Position changes — into 2026-03-31

by shares · Δ value · filing link · how changes are classified §

Position changes into quarter 2026-03-31
position matched across quarters by exact reported CUSIP over a registry gap — producer-reconciled identity, never a name match `identity_reconciled_by_cusip`	the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE `classified_by_value` · EXIT = absent this quarter: disposed, delisted, under confidential treatment, or reported instead by an affiliated manager — the filing does not say which · change not classifiable: value undisclosed on one side of the quarter pair, or neither shares nor value can classify it · NO CHANGE = the share count is identical in both quarters; the value moved only with price, so the row is mark-to-market and never an ADD or a TRIM (NEW / ADD / TRIM / EXIT / NO CHANGE) · NO PRIOR = this filer has no comparable holdings list for the previous quarter on record — a first filing under this registration, or a quarter reported inside an affiliated manager's filing — so the position is not called a new stake	derived by Public Filings from the published aggregate; NULL means the source did not disclose a usable value — never zero	reported unit changed across the pair (SH↔PRN); the share delta is withheld rather than fabricated `shares_unit_mismatch`	Prev value	Curr value	Prev shares	Curr shares
position key `pos:17821` · issuer key `iss:89` CAP STK CL C	TRIM	−$214M	−402,727	$1.2B	$937M	3,669,059	3,266,332
position key `pos:11825` · issuer key `iss:1225` COM	TRIM	−$413M	−311,338	$1.3B	$857M	2,626,566	2,315,228
position key `pos:14175` · issuer key `iss:95` COM	TRIM	−$179M	−419,914	$939M	$760M	4,069,955	3,650,041
position key `pos:14503` · issuer key `iss:1578` SPON ADS	TRIM	+$68.8M	−954,753	$593M	$662M	8,075,089	7,120,336
position key `pos:15708` · issuer key `iss:1187` COM	TRIM	−$122M	−430,096	$725M	$603M	3,905,686	3,475,590
position key `pos:12848` · issuer key `iss:1921` COM CL A	TRIM	−$128M	−98,456	$714M	$585M	2,035,207	1,936,751
position key `pos:15235` · issuer key `iss:125` CL A	TRIM	−$184M	−1,098,785	$687M	$504M	5,085,546	3,986,761
position key `pos:17928` · issuer key `iss:1322` COM	TRIM	−$16.3M	−162,769	$482M	$466M	846,131	683,362
position key `pos:11276` · issuer key `iss:1947` COM	ADD	−$75.3M	+104,875	$493M	$418M	1,298,752	1,403,627
position key `pos:14354` · issuer key `iss:2031` SHS CL A	TRIM	−$109M	−200,605	$521M	$412M	1,477,693	1,277,088
position key `pos:11688` · issuer key `iss:1955` COM	TRIM	−$82.7M	−205,943	$454M	$372M	4,876,127	4,670,184
position key `pos:10798` · issuer key `iss:2283` SHS	TRIM	−$103M	−593,074	$471M	$368M	3,272,935	2,679,861
position key `pos:11020` · issuer key `iss:255` CL A	TRIM	−$77.5M	−78	$443M	$366M	587	509
position key `pos:11390` · issuer key `iss:720` CL A	TRIM	−$104M	−75,402	$454M	$351M	688,205	612,803
position key `pos:13738` · issuer key `iss:1698` COM	ADD	+$176M	+1,653,984	$154M	$330M	1,767,773	3,421,757
position key `pos:18039` · issuer key `iss:1025` COM	ADD	+$339K	+98,026	$327M	$328M	1,015,553	1,113,579
position key `pos:16825` · issuer key `iss:987` COM	TRIM	−$66.5M	−350,287	$394M	$327M	2,430,848	2,080,561
position key `pos:16058` · issuer key `iss:118` COM	ADD	+$115M	+412,879	$209M	$324M	618,284	1,031,163
position key `pos:15442` · issuer key `iss:356` COM	TRIM	−$6.9M	−109,200	$311M	$305M	1,140,499	1,031,299
position key `pos:10854` · issuer key `iss:300` COM	TRIM	−$362M	−55,503	$601M	$239M	112,205	56,702
position key `pos:17443` · issuer key `iss:719` COM	TRIM	−$162M	−994,723	$394M	$232M	2,305,748	1,311,025
position key `pos:14206` · issuer key `iss:1193` CL A	TRIM	−$38.5M	−10,945	$264M	$226M	463,159	452,214
position key `pos:10679` · issuer key `iss:1211` COM	ADD	−$14.5M	+38,802	$229M	$214M	407,302	446,104
position key `sid:sec:prov:e64e5438d26b52bbfcb37bde4c834ad9` · issuer key `cusip6:852066` COM NEW	TRIM	+$44.7M	−163,820	$148M	$193M	1,515,002	1,351,182
position key `pos:12303` · issuer key `iss:1343` COM	TRIM	−$29.0M	−140,968	$205M	$176M	803,602	662,634
position key `pos:11461` · issuer key `iss:102` COM	ADD	+$62.3M	+357,704	$113M	$175M	976,788	1,334,492
position key `pos:10262` · issuer key `iss:2280` SHS NEW	NEW	+$169M	+965,035	$0	$169M	—	965,035
position key `pos:15642` · issuer key `iss:1334` COM	ADD	+$99.4M	+594,584	$66.6M	$166M	356,928	951,512
position key `pos:15495` · issuer key `iss:1590` COM	ADD	+$55.2M	+177,016	$108M	$163M	206,095	383,111
position key `pos:12696` · issuer key `iss:1845` COM	TRIM	−$45.3M	−289,906	$205M	$159M	2,503,682	2,213,776
position key `pos:17897` · issuer key `iss:729` COMMON STOCK NEW	TRIM	−$31.8M	−174,890	$189M	$157M	846,921	672,031
position key `pos:13590` · issuer key `iss:1189` COM	TRIM	−$14.5M	−9,268	$165M	$151M	264,946	255,678
position key `pos:12280` · issuer key `iss:218` COM	TRIM	+$16.6M	−38,531	$134M	$150M	772,693	734,162
position key `pos:17272` · issuer key `iss:521` COM SHS	TRIM	−$40.2M	−116,709	$190M	$149M	630,173	513,464
position key `pos:10935` · issuer key `iss:1902` COM	TRIM	+$15.5M	−254,079	$122M	$137M	2,984,875	2,730,796
position key `pos:12366` · issuer key `iss:22` COM	ADD	−$27.3M	+8,252	$156M	$129M	1,245,467	1,253,719
position key `pos:14563` · issuer key `iss:351` COM	TRIM	−$116M	−735,313	$243M	$127M	1,786,808	1,051,495
position key `pos:17983` · issuer key `iss:799` COM	TRIM	−$32.8M	−31,755	$159M	$126M	613,031	581,276
position key `pos:14992` · issuer key `iss:1485` COM	TRIM	−$5.6M	−45,460	$129M	$123M	896,693	851,233
position key `pos:12864` · issuer key `iss:369` CL A	TRIM	−$9.3M	−22,050	$131M	$122M	246,257	224,207
position key `pos:15764` · issuer key `iss:2177` ORD SHS CL A	ADD	+$33.9M	+3,117,856	$76.8M	$111M	4,585,720	7,703,576
position key `pos:11979` · issuer key `iss:57` COM CL A	ADD	+$17.4M	+187,837	$90.6M	$108M	667,850	855,687
position key `pos:11897` · issuer key `iss:2010` CL A	ADD	+$44.4M	+398,838	$44.6M	$89.0M	354,445	753,283
position key `pos:13599` · issuer key `iss:1035` COM	TRIM	+$2.4M	−53,772	$86.1M	$88.5M	415,882	362,110
position key `pos:11045` · issuer key `iss:947` COM	ADD	+$13.2M	+31,483	$73.3M	$86.5M	422,740	454,223
position key `pos:16841` · issuer key `iss:1791` COM	TRIM	+$5.7M	−19,205	$79.3M	$85.0M	456,844	437,639
position key `pos:17471` · issuer key `iss:152` COM	TRIM	−$168M	−1,399,951	$251M	$82.8M	2,057,224	657,273
position key `sid:sec:prov:aa082f49684a9580cf596b1d876b3d84` · issuer key `cusip6:29667J` COM	TRIM	−$3.7M	−75,251	$81.7M	$78.0M	800,465	725,214
position key `pos:17201` · issuer key `iss:1208` COM	NEW	+$74.1M	+85,680	$0	$74.1M	—	85,680
position key `pos:13926` · issuer key `iss:1811` CL A	ADD	+$16.6M	+95,380	$57.1M	$73.7M	531,171	626,551
position key `pos:17320` · issuer key `iss:1` COM PAR $0.004	ADD	+$11.8M	+82,376	$58.4M	$70.2M	766,207	848,583
position key `pos:15499` · issuer key `iss:23` COM	ADD	+$7.7M	+48,482	$59.7M	$67.4M	261,398	309,880
position key `pos:16371` · issuer key `iss:1778` SPON ADS	TRIM	−$69.9M	−593,548	$137M	$67.0M	7,808,297	7,214,749
position key `pos:10363` · issuer key `iss:866` SPONSORED ADS	TRIM	−$49.7M	−502,365	$116M	$66.8M	3,187,295	2,684,930
position key `pos:15144` · issuer key `iss:556` COM	TRIM	−$20.6M	−31,762	$84.8M	$64.2M	370,579	338,817
position key `pos:16043` · issuer key `iss:1291` SPONSORED ADS	TRIM	−$18.6M	−38,023	$77.1M	$58.4M	559,896	521,873
position key `pos:17629` · issuer key `iss:476` COM	TRIM	+$12.0M	−96,019	$46.2M	$58.1M	1,282,831	1,186,812
position key `pos:14802` · issuer key `iss:1329` COM	ADD	+$2.6M	+25,023	$54.4M	$57.0M	457,160	482,183
position key `pos:13891` · issuer key `iss:1313` CL B	TRIM	−$11.7M	−600	$68.2M	$56.5M	1,070,117	1,069,517
position key `pos:15545` · issuer key `iss:247` COM	TRIM	−$49.6M	−187,915	$105M	$55.9M	543,136	355,221
position key `pos:15047` · issuer key `iss:135` COM	TRIM	−$17.3M	−18,094	$72.6M	$55.3M	207,095	189,001
position key `pos:15485` · issuer key `iss:903` COM	ADD	+$10.4M	+19,328	$44.8M	$55.2M	246,199	265,527
position key `pos:16768` · issuer key `iss:1903` COM	ADD	−$2.9M	+30,136	$57.1M	$54.1M	255,201	285,337
position key `pos:13965` · issuer key `iss:264` CL A	TRIM	−$18.3M	−45,162	$70.9M	$52.6M	233,946	188,784
position key `sid:sec:prov:d9b20d7e796bd61e91a756a32a982071` · issuer key `cusip6:068463` COM	TRIM	−$21.5M	−262,241	$71.1M	$49.7M	1,964,053	1,701,812
position key `pos:17467` · issuer key `iss:1751` SPONSORED ADS	TRIM	−$11.3M	−52,381	$56.7M	$45.4M	186,670	134,289
position key `pos:13464` · issuer key `iss:303` COM	TRIM	+$5.9M	−40,183	$39.4M	$45.3M	874,457	834,274
position key `pos:13567` · issuer key `iss:121` COM	TRIM	+$1.4M	−2,171	$41.3M	$42.6M	201,078	198,907
position key `pos:16115` · issuer key `iss:1869` COM	ADD	−$8.3M	+1,305	$47.9M	$39.7M	145,241	146,546
position key `pos:14095` · issuer key `iss:307` COM	ADD	+$32.6M	+543,460	$4.4M	$37.0M	46,199	589,659
position key `pos:12118` · issuer key `iss:1890` COM	TRIM	−$8.4M	−460,886	$45.0M	$36.6M	1,547,060	1,086,174
position key `pos:15624` · issuer key `iss:662` COM	ADD	+$12.1M	+42,740	$22.0M	$34.0M	126,186	168,926
position key `pos:13768` · issuer key `iss:1651` COM	TRIM	−$10.1M	−30,193	$43.3M	$33.2M	133,748	103,555
position key `pos:10762` · issuer key `iss:1038` COM	ADD	+$20.5M	+712,355	$11.1M	$31.6M	372,320	1,084,675
position key `pos:17218` · issuer key `iss:984` COM	ADD	+$21.7M	+233,973	$6.5M	$28.2M	76,881	310,854
position key `pos:12069` · issuer key `iss:600` COM	ADD	+$15.4M	+163,941	$11.2M	$26.6M	91,249	255,190
position key `pos:11205` · issuer key `iss:255` CL B NEW	TRIM	−$1.4M	−167	$27.6M	$26.2M	54,833	54,666
position key `pos:13075` · issuer key `iss:985` COM CL A	TRIM	−$2.9M	−60,336	$27.6M	$24.8M	429,818	369,482
position key `sid:sec:prov:cbac4e0e9b5354acc3ec2877ce133230` · issuer key `cusip6:59100U` COM	TRIM	+$1.9M	−42,080	$22.1M	$24.0M	310,623	268,543
position key `sid:sec:prov:83c2f00310eeadba811d881892a2819c` · issuer key `cusip6:04965M` SPONSORED ADS	ADD	+$5.0M	+168,585	$18.9M	$23.9M	479,543	648,128
position key `pos:16916` · issuer key `iss:1062` COM	ADD	+$6.9M	+25,252	$13.5M	$20.4M	34,580	59,832
position key `pos:14644` · issuer key `iss:976` COM	TRIM	−$26.3M	−453,249	$46.5M	$20.2M	1,200,192	746,943
position key `pos:10708` · issuer key `iss:1205` COM NON VTG	TRIM	−$7.2M	−2,099	$27.2M	$20.1M	400,074	397,975
position key `pos:16586` · issuer key `iss:598` COM	TRIM	−$20.2M	−435,861	$40.1M	$20.0M	859,565	423,704
position key `pos:11361` · issuer key `iss:1042` COM	ADD	−$6.8M	+4,591	$26.3M	$19.5M	206,248	210,839
position key `pos:12331` · issuer key `iss:1618` COM	TRIM	+$9.2M	−12,370	$10.2M	$19.4M	42,908	30,538
position key `pos:10705` · issuer key `iss:2209` COM SHS	TRIM	−$5.0M	−34,621	$24.2M	$19.3M	216,701	182,080
position key `pos:16392` · issuer key `iss:1549` COM	ADD	+$1.3M	+11,053	$17.6M	$18.9M	72,954	84,007
position key `pos:15330` · issuer key `iss:1586` CL A	TRIM	−$10.2M	−23,978	$27.1M	$16.9M	525,172	501,194
position key `pos:15409` · issuer key `iss:1212` COM CL A	ADD	+$6.9M	+142,296	$9.5M	$16.3M	225,000	367,296
position key `pos:15633` · issuer key `iss:1086` COM	TRIM	−$3.1M	−883	$17.7M	$14.7M	49,606	48,723
position key `sid:sec:prov:43252ac6f56d036774096d81b2fbf32d` · issuer key `cusip6:58039P` COM NEW	ADD	+$9.8M	+456,870	$4.6M	$14.4M	249,981	706,851
position key `pos:18187` · issuer key `iss:1040` COM NEW	TRIM	+$2.2M	−171	$11.6M	$13.9M	9,587	9,416
position key `pos:12993` · issuer key `iss:1898` COM CL A	NEW	+$12.1M	+770,415	$0	$12.1M	—	770,415
position key `pos:17724` · issuer key `iss:576` COM	NEW	+$11.9M	+60,054	$0	$11.9M	—	60,054
position key `pos:15030` · issuer key `iss:1951` COM	ADD	−$135K	+115,437	$11.1M	$10.9M	337,732	453,169
position key `pos:12363` · issuer key `iss:1707` CL A	ADD	+$7.7M	+131,014	$3.1M	$10.7M	47,043	178,057
position key `pos:16845` · issuer key `iss:1705` COM	ADD	+$1.9M	+27,427	$7.7M	$9.6M	97,119	124,546
position key `pos:17824` · issuer key `iss:1514` COM	TRIM	−$2.9M	−21,608	$12.5M	$9.6M	121,299	99,691
position key `sid:sec:prov:941aa0ca4e86584c85914053d3325863` · issuer key `cusip6:05587G` COM NEW	NEW	+$8.7M	+116,904	$0	$8.7M	—	116,904

Flags: no row carries a flag.

1–20 of the 100 changes on this page

Mark-to-market only (no share change) · 3

Positions whose share count is identical in both quarters; the value changed with price, not with a decision.

Positions held with no share change into quarter 2026-03-31
position matched across quarters by exact reported CUSIP over a registry gap — producer-reconciled identity, never a name match `identity_reconciled_by_cusip`	the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE `classified_by_value` · EXIT = absent this quarter: disposed, delisted, under confidential treatment, or reported instead by an affiliated manager — the filing does not say which · change not classifiable: value undisclosed on one side of the quarter pair, or neither shares nor value can classify it · NO CHANGE = the share count is identical in both quarters; the value moved only with price, so the row is mark-to-market and never an ADD or a TRIM (NEW / ADD / TRIM / EXIT / NO CHANGE) · NO PRIOR = this filer has no comparable holdings list for the previous quarter on record — a first filing under this registration, or a quarter reported inside an affiliated manager's filing — so the position is not called a new stake	derived by Public Filings from the published aggregate; NULL means the source did not disclose a usable value — never zero	Prev value	Curr value	Prev shares	Curr shares
position key `pos:10889` · issuer key `iss:1047` SPONSORED ADS	NO CHANGE	−$296K	$5.7M	$5.4M	72,791	72,791
position key `pos:14305` · issuer key `iss:1452` SPONSORED ADS	NO CHANGE	−$386K	$3.9M	$3.5M	34,390	34,390
position key `pos:18169` · issuer key `iss:1577` COM	NO CHANGE	−$13.0K	$255K	$242K	1,495	1,495

Flags: no row carries a flag.

Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Truncated by Public Filings. Changes compare every position with a security identifier, new and exited included; holdings without one are counted, not compared. methodology §13F ↗

Reported positions — 2026-03-31

1–100 of 124 issuers · $15.4B disclosed value over 126 rows · 0 undisclosed-value rows

View

This build carries one quarter for this manager: 2026-03-31. Notable managers carry four published quarters, others two.

This list carries reported issuer names and security identities, without a dated ticker mapping. Symbols are not inferred from names.

a position composed from a base filing plus NEW-HOLDINGS amendments keeps every source row here; the composition's latest filed date is the one shown served from this build's published holdings (derived from the filer's own reported rows); every row resolves to its filing

Share of total reported value, calculated only when the full position list has disclosed values. This is 13F long value, not total assets.

value undisclosed on the filing: retained and counted, excluded from sums, never shown as $0

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ALPHABET INC

2 positions · 2 reported rows

Rows Mawer Investment Management Ltd. reported for ALPHABET INC, as it reported them
ALPHABET INC · CAP STK CL C CUSIP — src ↗	$937M	3,266,332
ALPHABET INC · CAP STK CL A CUSIP — src ↗	$5.3M	18,574

$942M

3,284,906

6.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MICROSOFT CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$857M

2,315,228

5.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AMAZON COM INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$760M

3,650,041

4.9%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SHELL PLC · SPON ADS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$662M

7,120,336

4.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MARSH & MCLENNAN COS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$603M

3,475,590

3.9%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VISA INC · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$585M

1,936,751

3.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AMPHENOL CORP · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$504M

3,986,761

3.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NORTHROP GRUMMAN CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$466M

683,362

3.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WATERS CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$418M

1,403,627

2.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AON PLC · SHS CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$412M

1,277,088

2.7%

BERKSHIRE HATHAWAY INC DEL

2 positions · 2 reported rows

Rows Mawer Investment Management Ltd. reported for BERKSHIRE HATHAWAY INC DEL, as it reported them
BERKSHIRE HATHAWAY INC DEL · CL A CUSIP — src ↗	$366M	509
BERKSHIRE HATHAWAY INC DEL · CL B NEW CUSIP — src ↗	$26.2M	54,666

$392M

55,175

2.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WELLS FARGO & CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$372M

4,670,184

2.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AERCAP HOLDINGS NV · SHS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$368M

2,679,861

2.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

META PLATFORMS INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$351M

612,803

2.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SOUTHERN CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$330M

3,421,757

2.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

JPMORGAN CHASE & CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$328M

1,113,579

2.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

INTERCONTINENTAL EXCHANGE IN · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$327M

2,080,561

2.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CENCORA INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$324M

1,031,163

2.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CME GROUP INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$305M

1,031,299

2.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BOOKING HOLDINGS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$239M

56,702

1.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

FTI CONSULTING INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$232M

1,311,025

1.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MASTERCARD INCORPORATED · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$226M

452,214

1.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MEDPACE HLDGS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$214M

446,104

1.4%

—

SPROTT INC · COM NEW CUSIP 852066208
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$193M

1,351,182

1.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

OSI SYSTEMS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$176M

662,634

1.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AMERICAN ELEC PWR CO INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$175M

1,334,492

1.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TOWER SEMICONDUCTOR LTD · SHS NEW CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$169M

965,035

1.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NVIDIA CORPORATION · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$166M

951,512

1.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

S&P GLOBAL INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$163M

383,111

1.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

UBER TECHNOLOGIES INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$159M

2,213,776

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

FERGUSON ENTERPRISES INC · COMMON STOCK NEW CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$157M

672,031

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MARTIN MARIETTA MATLS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$151M

255,678

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BWX TECHNOLOGIES INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$150M

734,162

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CORPAY INC · COM SHS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$149M

513,464

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VERIZON COMMUNICATIONS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$137M

2,730,796

0.9%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ABBOTT LABORATORIES · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$129M

1,253,719

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CDW CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$127M

1,051,495

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

GALLAGHER ARTHUR J & CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$126M

581,276

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

PROCTER & GAMBLE CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$123M

851,233

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CACI INTL INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$122M

224,207

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NU HLDGS LTD · ORD SHS CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$111M

7,703,576

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AIRBNB INC · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$108M

855,687

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ZOETIS INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$89.0M

753,283

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

JOHNSON & JOHNSON · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$88.5M

362,110

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ITT INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$86.5M

454,223

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TEXAS INSTRS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$85.0M

437,639

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

APTARGROUP INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$82.8M

657,273

0.5%

—

ESQUIRE FINL HLDGS INC · COM CUSIP 29667J101
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$78.0M

725,214

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MCKESSON CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$74.1M

85,680

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TRADEWEB MKTS INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$73.7M

626,551

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AAON INC · COM PAR $0.004 CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$70.2M

848,583

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ABBVIE INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$67.4M

309,880

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TENCENT MUSIC ENTMT GROUP · SPON ADS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$67.0M

7,214,749

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

HDFC BANK LTD · SPONSORED ADS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$66.8M

2,684,930

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

DANAHER CORP DEL · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$64.2M

338,817

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NETEASE COM INC · SPONSORED ADS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$58.4M

521,873

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

COGNEX CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$58.1M

1,186,812

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NOVANTA INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$57.0M

482,183

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NIKE INC · CL B CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$56.5M

1,069,517

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BECTON DICKINSON & CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$55.9M

355,221

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ELEVANCE HEALTH INC FORMERLY · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$55.3M

189,001

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

HERSHEY CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$55.2M

265,527

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VERISK ANALYTICS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$54.1M

285,337

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BIO RAD LABS INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$52.6M

188,784

0.3%

—

BARRETT BUSINESS SVCS INC · COM CUSIP 068463108
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$49.7M

1,701,812

0.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TAIWAN SEMICONDUCTOR MANUFAC · SPONSORED ADS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$45.4M

134,289

0.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BORGWARNER INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$45.3M

834,274

0.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AMETEK INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$42.6M

198,907

0.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

UNITEDHEALTH GROUP INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$39.7M

146,546

0.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BOSTON SCIENTIFIC CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$37.0M

589,659

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VALVOLINE INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$36.6M

1,086,174

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ENSIGN GROUP INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$34.0M

168,926

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SHERWIN WILLIAMS CO · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$33.2M

103,555

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

OPENLANE INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$31.6M

1,084,675

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

INTERPARFUMS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$28.2M

310,854

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

DORMAN PRODS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$26.6M

255,190

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

INTERACTIVE BROKERS GROUP IN · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$24.8M

369,482

0.2%

—

PATHWARD FINANCIAL INC · COM CUSIP 59100U108
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$24.0M

268,543

0.2%

—

ATOUR LIFESTYLE HLDGS LTD · SPONSORED ADS CUSIP 04965M106
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$23.9M

648,128

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

KINSALE CAP GROUP INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$20.4M

59,832

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

INSPERITY INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$20.2M

746,943

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MCCORMICK & CO INC · COM NON VTG CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$20.1M

397,975

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

DONNELLEY FINL SOLUTIONS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$20.0M

423,704

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

KKR & CO INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$19.5M

210,839

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SANDISK CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$19.4M

30,538

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SHARKNINJA INC · COM SHS CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$19.3M

182,080

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

RESMED INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$18.9M

84,007

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

RYAN SPECIALTY HOLDINGS INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$16.9M

501,194

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MEDLINE INC · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$16.3M

367,296

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

LPL FINL HLDGS INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$14.7M

48,723

0.1%

—

MCEWEN INC. · COM NEW CUSIP 58039P305
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$14.4M

706,851

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

KLA CORP · COM NEW CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$13.9M

9,416

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VENTURE GLOBAL INC · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$12.1M

770,415

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

DIAMONDBACK ENERGY INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$11.9M

60,054

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WAYSTAR HLDG CORP · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$10.9M

453,169

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BLOCK INC · CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$10.7M

178,057

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SPROUTS FMRS MKT INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$9.6M

124,546

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

RB GLOBAL INC · COM CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$9.6M

99,691

0.1%

—

BK TECHNOLOGIES CORPORATION · COM NEW CUSIP 05587G203
2026-03-31 filed 2026-05-06 +36d

src ↗

ticker not yet mapped

$8.7M

116,904

0.1%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WARNER MUSIC GROUP CORP · COM CL A CUSIP —
2026-03-31 filed 2026-05-06 +36d

src ↗

$8.7M

341,325

0.1%

1–20 of the 100 issuers on this page

Change kind and share change are in Position changes above; Congress overlap is planned.

One line per issuer, largest first; a row with no issuer key stands on its own line. Open a line for its rows as this filer reported them. The list holds every row this filer reported for the quarter. Issuer totals on the holders pages count each manager's own report once; that never removes a row here. how positions are grouped ↗

Book shape

2026-03-31 · concentration · vs tracked median · tick = median

Top-25 concentration: 68.3%below median 80.0%
Concentration index: 249 bpsbelow median 446 bps
Positions with value: 126 / 126median book 97.5 positions

Concentration uses reported 13F long value, not total assets. The index is withheld when any position lacks a value. Medians are over the 8,748 tracked filers with a 2026-03-31 book; the index median over the 8,662 with a complete book.

holdings whose <value> did not parse — retained and counted, never zero-filled: 0 · share of the period's disclosed value held in the top-N positions; denominator is reported 13F value, not total assets: 68.3% · integer Herfindahl–Hirschman index in basis points over disclosed position values: 249 · QoQ moves: 141

Filing history

AVAILABLE QUARTERS

Available filing periods
Period	Source
2026-03-31	EDGAR ↗

PLANNED sector rotation · Congress overlap · signals for this filer

Complete source filings on SEC EDGAR

The complete filing on EDGAR.

The position list above is served from the published Public Filings build, each position as this filer reported it; where the page cannot embed every reported row, the list says how many it leaves out. This block is provenance, not a substitute: the filing itself is the record, and it is one click away. Public Filings decided on 2026-08-01 to serve this list from its published build; filings newer than this build are on EDGAR.

Open Mawer Investment Management Ltd.'s 13F filings on SEC EDGAR ↗

Notes on this data

Reported positions

Quarter-end holdings as filed

Explore the full published position list and its source filing. This record excludes the manager’s cash, shorts and non-13(f) assets.

Share changes

Compare consecutive quarters

Position changes retain the producer’s classification and comparability flags. Share counts and reported values describe different changes.

Coverage

A snapshot, not current holdings

Use the quarter selector to inspect available periods. Unknown values stay unknown and each table states its coverage.

A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗

13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.

Positions are quarter-end snapshots filed up to 45 days late — not current holdings. A position may have been changed or closed before you ever see it, and is older still by however long ago that quarter ended.

Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars with unit_basis carried on every record.

Affiliated managers may report the same position (otherManager), so one position can appear under more than one filer.

Positions under confidential treatment may be omitted until a later amendment discloses them.

These are disclosures, not investment advice (ARCHITECTURE.md §5.2 / M2-CONTRACT §5).