Mawer Investment Management Ltd. — 13F Holdings & Portfolio
CIK 1538449 · latest 13F-HR filed 2026-08-07
Mawer Investment Management Ltd. manages $14.71B in 13F-reported U.S. long-equity assets across 142 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are GOOG (6.44%), AMZN (4.91%), MSFT (4.26%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 28 new positions and exited 12; 40 existing positions rose in reported value and 61 fell.
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.
Long-equity book
Distinct positions
Filed 2026-08-07
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- NVIDIA CORPORATION$450.0M +271.2%
- AMERICAN ELEC PWR CO INC$137.5M +78.6%
- TOWER SEMICONDUCTOR LTD$101.2M +59.8%
- CENCORA INC$97.4M +30.1%
- MCKESSON CORP$62.2M +83.9%
Top Trims
- MARSH & MCLENNAN COS INC-$291.0M -48.3%
- MICROSOFT CORP-$230.4M -26.9%
- NORTHROP GRUMMAN CORP-$126.5M -27.1%
- FERGUSON ENTERPRISES INC-$122.4M -78.1%
- FTI CONSULTING INC-$121.9M -52.6%
New Positions
- VALMONT INDS INC$65.9M
- SK TELECOM CO LTD$54.9M
- BROADCOM INC$48.5M
- SERVICENOW INC$33.5M
- FORMFACTOR INC$32.4M
Exited Positions
- OSI SYSTEMS INC$175.9M
- NETEASE COM INC$58.4M
- ENSIGN GROUP INC$34.0M
- MCCORMICK & CO INC$20.1M
- WARNER MUSIC GROUP CORP$8.7M
Mawer Investment Management Ltd. Holdings (2026-06-30)
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 | $947.7M | 6.44% | 2,682,081 | SH |
| 2 | AMAZON COM INC | AMZN | 023135106 | $721.7M | 4.91% | 3,028,097 | SH |
| 3 | MICROSOFT CORP | MSFT | 594918104 | $626.6M | 4.26% | 1,679,876 | SH |
| 4 | SHELL PLC | SHEL | 780259305 | $621.4M | 4.22% | 8,013,792 | SH |
| 5 | NVIDIA CORPORATION | NVDA | 67066G104 | $616.0M | 4.19% | 3,078,576 | SH |
| 6 | VISA INC | V | 92826C839 | $593.6M | 4.04% | 1,730,185 | SH |
| 7 | WATERS CORP | WAT | 941848103 | $456.4M | 3.10% | 1,216,947 | SH |
| 8 | CENCORA INC | COR | 03073E105 | $421.3M | 2.86% | 1,488,843 | SH |
| 9 | AMPHENOL CORP | APH | 032095101 | $415.8M | 2.83% | 2,358,285 | SH |
| 10 | AON PLC | AON | G0403H108 | $388.6M | 2.64% | 1,171,624 | SH |
| 11 | AERCAP HOLDINGS NV | AER | N00985106 | $352.8M | 2.40% | 2,420,238 | SH |
| 12 | WELLS FARGO & CO | WFC | 949746101 | $346.7M | 2.36% | 4,195,116 | SH |
| 13 | NORTHROP GRUMMAN CORP | NOC | 666807102 | $339.7M | 2.31% | 667,069 | SH |
| 14 | AMERICAN ELEC PWR CO INC | AEP | 025537101 | $312.5M | 2.12% | 2,283,858 | SH |
| 15 | MARSH & MCLENNAN COS INC | MRSH | 571748102 | $311.9M | 2.12% | 1,871,159 | SH |
| 16 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $310.8M | 2.11% | 415 | SH |
| 17 | META PLATFORMS INC | META | 30303M102 | $307.4M | 2.09% | 545,687 | SH |
| 18 | JPMORGAN CHASE & CO | JPM | 46625H100 | $303.7M | 2.06% | 927,802 | SH |
| 19 | SOUTHERN CO | SO | 842587107 | $289.4M | 1.97% | 3,023,312 | SH |
| 20 | TOWER SEMICONDUCTOR LTD | TSEM | M87915274 | $270.6M | 1.84% | 1,038,086 | SH |
| 21 | INTERCONTINENTAL EXCHANGE IN | ICE | 45866F104 | $250.1M | 1.70% | 2,031,582 | SH |
| 22 | MASTERCARD INCORPORATED | MA | 57636Q104 | $223.0M | 1.52% | 434,186 | SH |
| 23 | CME GROUP INC | CME | 12572Q105 | $211.1M | 1.44% | 955,942 | SH |
| 24 | S&P GLOBAL INC | SPGI | 78409V104 | $174.5M | 1.19% | 428,573 | SH |
| 25 | SPROTT INC | SII | 852066208 | $148.4M | 1.01% | 1,320,706 | SH |
| 26 | UBER TECHNOLOGIES INC | UBER | 90353T100 | $143.2M | 0.97% | 1,983,808 | SH |
| 27 | MEDPACE HLDGS INC | MEDP | 58506Q109 | $141.5M | 0.96% | 267,175 | SH |
| 28 | MARTIN MARIETTA MATLS INC | MLM | 573284106 | $139.3M | 0.95% | 241,545 | SH |
| 29 | MCKESSON CORP | MCK | 58155Q103 | $136.3M | 0.93% | 180,449 | SH |
| 30 | BWX TECHNOLOGIES INC | BWXT | 05605H100 | $134.3M | 0.91% | 689,750 | SH |
| 31 | CDW CORP | CDW | 12514G108 | $133.5M | 0.91% | 949,381 | SH |
| 32 | TEXAS INSTRS INC | TXN | 882508104 | $133.3M | 0.91% | 447,181 | SH |
| 33 | BOOKING HOLDINGS INC | BKNG | 09857L108 | $132.0M | 0.90% | 740,483 | SH |
| 34 | CORPAY INC | CPAY | 219948106 | $122.6M | 0.83% | 367,757 | SH |
| 35 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $117.1M | 0.80% | 510,025 | SH |
| 36 | PROCTER & GAMBLE CO | PG | 742718109 | $115.0M | 0.78% | 784,529 | SH |
| 37 | FTI CONSULTING INC | FCN | 302941109 | $109.8M | 0.75% | 736,868 | SH |
| 38 | ABBVIE INC | ABBV | 00287Y109 | $108.5M | 0.74% | 431,246 | SH |
| 39 | AAON INC | AAON | 000360206 | $108.5M | 0.74% | 855,173 | SH |
| 40 | ABBOTT LABORATORIES | ABT | 002824100 | $107.7M | 0.73% | 1,186,677 | SH |
| 41 | AIRBNB INC | ABNB | 009066101 | $106.9M | 0.73% | 746,819 | SH |
| 42 | CACI INTL INC | CACI | 127190304 | $104.1M | 0.71% | 224,720 | SH |
| 43 | NOVANTA INC | NOVT | 67000B104 | $95.7M | 0.65% | 589,573 | SH |
| 44 | NU HLDGS LTD | NU | G6683N103 | $95.6M | 0.65% | 7,155,847 | SH |
| 45 | COGNEX CORP | CGNX | 192422103 | $94.5M | 0.64% | 1,305,175 | SH |
| 46 | ITT INC | ITT | 45073V108 | $83.6M | 0.57% | 422,873 | SH |
| 47 | VERISK ANALYTICS INC | VRSK | 92345Y106 | $83.4M | 0.57% | 464,286 | SH |
| 48 | JOHNSON & JOHNSON | JNJ | 478160104 | $81.9M | 0.56% | 322,477 | SH |
| 49 | ELEVANCE HEALTH INC FORMERLY | ELV | 036752103 | $72.4M | 0.49% | 187,293 | SH |
| 50 | VERIZON COMMUNICATIONS INC | VZ | 92343V104 | $71.0M | 0.48% | 1,676,590 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-07 | $14.71B | 142 | 0000945621-26-000992 |
| 2026-03-31 | 2026-05-06 | $15.45B | 126 | 0000945621-26-000636 |
| 2025-12-31 | 2026-02-10 | $17.85B | 125 | 0000945621-26-000248 |
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