Mawer Investment Management Ltd. — 13F Holdings & Portfolio
CIK 1538449 · latest 13F-HR filed 2026-05-06
Mawer Investment Management Ltd. manages $15.45B in 13F-reported U.S. long-equity assets across 126 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are GOOG (6.07%), MSFT (5.55%), AMZN (4.92%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 16 new positions, exited 15, added to 40, and trimmed 59.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$15.45B
Long-equity book
126
Distinct positions
2026-03-31
Filed 2026-05-06
+16 / −15 / ↑40 / ↓59
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- SOUTHERN CO$176.1M +114.3%
- CENCORA INC$115.1M +55.1%
- NVIDIA CORPORATION$99.4M +149.3%
- SHELL PLC$68.8M +11.6%
- AMERICAN ELEC PWR CO INC$62.3M +55.3%
Top Trims
- MICROSOFT CORP-$413.2M -32.5%
- BOOKING HOLDINGS INC-$362.2M -60.3%
- ALPHABET INC-$214.4M -18.6%
- AMPHENOL CORP-$183.5M -26.7%
- AMAZON COM INC-$179.2M -19.1%
New Positions
- TOWER SEMICONDUCTOR LTD$169.3M
- MCKESSON CORP$74.1M
- VENTURE GLOBAL INC$12.1M
- DIAMONDBACK ENERGY INC$11.9M
- BK TECHNOLOGIES CORPORATION$8.7M
Exited Positions
- DEERE & CO$178.1M
- ACCENTURE PLC IRELAND$95.1M
- SHIFT4 PMTS INC$10.7M
- LYFT INC$9.8M
- VITAL FARMS INC$6.9M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ALPHABET INC | GOOG | 02079K107 | $937.0M | 6.07% | 3,266,332 | SH |
| 2 | MICROSOFT CORP | MSFT | 594918104 | $857.0M | 5.55% | 2,315,228 | SH |
| 3 | AMAZON COM INC | AMZN | 023135106 | $760.2M | 4.92% | 3,650,041 | SH |
| 4 | SHELL PLC | SHEL | 780259305 | $662.2M | 4.29% | 7,120,336 | SH |
| 5 | MARSH & MCLENNAN COS INC | MRSH | 571748102 | $602.8M | 3.90% | 3,475,590 | SH |
| 6 | VISA INC | V | 92826C839 | $585.4M | 3.79% | 1,936,751 | SH |
| 7 | AMPHENOL CORP | APH | 032095101 | $503.7M | 3.26% | 3,986,761 | SH |
| 8 | NORTHROP GRUMMAN CORP | NOC | 666807102 | $466.2M | 3.02% | 683,362 | SH |
| 9 | WATERS CORP | WAT | 941848103 | $418.0M | 2.71% | 1,403,627 | SH |
| 10 | AON PLC | AON | G0403H108 | $412.2M | 2.67% | 1,277,088 | SH |
| 11 | WELLS FARGO & CO | WFC | 949746101 | $371.8M | 2.41% | 4,670,184 | SH |
| 12 | AERCAP HOLDINGS NV | AER | N00985106 | $367.6M | 2.38% | 2,679,861 | SH |
| 13 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $365.5M | 2.37% | 509 | SH |
| 14 | META PLATFORMS INC | META | 30303M102 | $350.6M | 2.27% | 612,803 | SH |
| 15 | SOUTHERN CO | SO | 842587107 | $330.3M | 2.14% | 3,421,757 | SH |
| 16 | JPMORGAN CHASE & CO | JPM | 46625H100 | $327.6M | 2.12% | 1,113,579 | SH |
| 17 | INTERCONTINENTAL EXCHANGE IN | ICE | 45866F104 | $327.2M | 2.12% | 2,080,561 | SH |
| 18 | CENCORA INC | COR | 03073E105 | $323.9M | 2.10% | 1,031,163 | SH |
| 19 | CME GROUP INC | CME | 12572Q105 | $304.6M | 1.97% | 1,031,299 | SH |
| 20 | BOOKING HOLDINGS INC | BKNG | 09857L108 | $238.7M | 1.55% | 56,702 | SH |
| 21 | FTI CONSULTING INC | FCN | 302941109 | $231.7M | 1.50% | 1,311,025 | SH |
| 22 | MASTERCARD INCORPORATED | MA | 57636Q104 | $226.0M | 1.46% | 452,214 | SH |
| 23 | MEDPACE HLDGS INC | MEDP | 58506Q109 | $214.2M | 1.39% | 446,104 | SH |
| 24 | SPROTT INC | SII | 852066208 | $193.1M | 1.25% | 1,351,182 | SH |
| 25 | OSI SYSTEMS INC | OSIS | 671044105 | $175.9M | 1.14% | 662,634 | SH |
| 26 | AMERICAN ELEC PWR CO INC | AEP | 025537101 | $174.9M | 1.13% | 1,334,492 | SH |
| 27 | TOWER SEMICONDUCTOR LTD | TSEM | M87915274 | $169.3M | 1.10% | 965,035 | SH |
| 28 | NVIDIA CORPORATION | NVDA | 67066G104 | $165.9M | 1.07% | 951,512 | SH |
| 29 | S&P GLOBAL INC | SPGI | 78409V104 | $163.0M | 1.05% | 383,111 | SH |
| 30 | UBER TECHNOLOGIES INC | UBER | 90353T100 | $159.2M | 1.03% | 2,213,776 | SH |
| 31 | FERGUSON ENTERPRISES INC | FERG | 31488V107 | $156.8M | 1.01% | 672,031 | SH |
| 32 | MARTIN MARIETTA MATLS INC | MLM | 573284106 | $150.5M | 0.97% | 255,678 | SH |
| 33 | BWX TECHNOLOGIES INC | BWXT | 05605H100 | $150.1M | 0.97% | 734,162 | SH |
| 34 | CORPAY INC | CPAY | 219948106 | $149.4M | 0.97% | 513,464 | SH |
| 35 | VERIZON COMMUNICATIONS INC | VZ | 92343V104 | $137.1M | 0.89% | 2,730,796 | SH |
| 36 | ABBOTT LABORATORIES | ABT | 002824100 | $128.7M | 0.83% | 1,253,719 | SH |
| 37 | CDW CORP | CDW | 12514G108 | $127.3M | 0.82% | 1,051,495 | SH |
| 38 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $125.9M | 0.82% | 581,276 | SH |
| 39 | PROCTER & GAMBLE CO | PG | 742718109 | $123.0M | 0.80% | 851,233 | SH |
| 40 | CACI INTL INC | CACI | 127190304 | $121.9M | 0.79% | 224,207 | SH |
| 41 | NU HLDGS LTD | NU | G6683N103 | $110.7M | 0.72% | 7,703,576 | SH |
| 42 | AIRBNB INC | ABNB | 009066101 | $108.1M | 0.70% | 855,687 | SH |
| 43 | ZOETIS INC | ZTS | 98978V103 | $89.0M | 0.58% | 753,283 | SH |
| 44 | JOHNSON & JOHNSON | JNJ | 478160104 | $88.5M | 0.57% | 362,110 | SH |
| 45 | ITT INC | ITT | 45073V108 | $86.5M | 0.56% | 454,223 | SH |
| 46 | TEXAS INSTRS INC | TXN | 882508104 | $85.0M | 0.55% | 437,639 | SH |
| 47 | APTARGROUP INC | ATR | 038336103 | $82.8M | 0.54% | 657,273 | SH |
| 48 | ESQUIRE FINL HLDGS INC | ESQ | 29667J101 | $78.0M | 0.50% | 725,214 | SH |
| 49 | MCKESSON CORP | MCK | 58155Q103 | $74.1M | 0.48% | 85,680 | SH |
| 50 | TRADEWEB MKTS INC | TW | 892672106 | $73.7M | 0.48% | 626,551 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-06 | $15.45B | 126 | 0000945621-26-000636 |
| 2025-12-31 | 2026-02-10 | $17.85B | 125 | 0000945621-26-000248 |