OMERS ADMINISTRATION CORP
Q3 2025 Form 13-F
TORONTO, ONTARIO, CANADA
CIK 0001053321
· Institutional investment manager
$14.0B Reported Value Total
Reported value
$14.0B
Quarter over quarter
+7.1%
Holdings
1,135
Top-10 concentration
35.5%
Key People
Named on the latest Form 13-F filing — not necessarily an owner
Josh Bezonsky
Vice President, Legal and Compliance
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
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Q3 2025 13F record
Q3 2025 13F filing summary
| Period of report | September 30, 2025 |
|---|---|
| Filed | November 14, 2025 |
| Form | 13F-HR |
| Reported value | $14.0B |
| Positions | 1,135 |
| Change in reported value | +9.7% |
| New positions | 372 |
| Exited positions | 100 |
| Position turnover | 38.2% |
| Top-10 concentration | 35.5% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q2 2026 13F
Filed Aug 13, 2026
|
906 | $16.7B |
|
Q1 2026 13F
Filed May 15, 2026
|
1,096 | $15.6B |
|
Q4 2025 13F
Filed Feb 13, 2026
|
1,030 | $14.0B |
|
Q3 2025 13F
Filed Nov 14, 2025
|
1,135 | $14.0B |
|
Q2 2025 13F
Filed Aug 13, 2025
|
863 | $12.7B |
|
Q1 2025 13F
Filed May 14, 2025
|
1,026 | $11.4B |
|
Q4 2024 13F
Filed Feb 14, 2025
|
955 | $11.4B |
|
Q3 2024 13F
Filed Nov 13, 2024
|
891 | $10.9B |
|
Q2 2024 13F
Filed Aug 13, 2024
|
1,028 | $10.4B |
|
Q1 2024 13F
Filed May 14, 2024
|
449 | $8.7B |
|
Q4 2023 13F
Filed Feb 13, 2024
|
293 | $7.9B |
|
Q3 2023 13F
Filed Nov 13, 2023
|
238 | $6.6B |
|
Q2 2023 13F
Filed Aug 14, 2023
|
240 | $6.4B |
|
Q1 2023 13F
Filed May 12, 2023
|
299 | $6.5B |
|
Q4 2022 13F
Filed Feb 13, 2023
|
367 | $6.2B |
|
Q3 2022 13F
Filed Nov 14, 2022
|
346 | $6.0B |
|
Q2 2022 13F
Filed Aug 12, 2022
|
424 | $6.9B |
|
Q1 2022 13F
Filed May 12, 2022
|
465 | $7.8B |
|
Q4 2021 13F
Filed Feb 14, 2022
|
400 | $7.7B |
|
Q3 2021 13F
Filed Nov 12, 2021
|
438 | $6.9B |
33 earlier quarters on file — choose one from the quarter menu above.
Top 20 holdings · Q3 2025
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | NVDA NVIDIA CORPORATION | $846.2M | 6.06% |
| 2 | MSFT MICROSOFT CORP | $821.4M | 5.88% |
| 3 | AMZN AMAZON COM INC | $594.4M | 4.26% |
| 4 | AAPL APPLE INC | $586.4M | 4.2% |
| 5 | BBU BROOKFIELD BUSINESS PARTNERS | $392.6M | 2.81% |
| 6 | AVGO BROADCOM INC | $391.8M | 2.81% |
| 7 | GOOGL ALPHABET INC | $373.9M | 2.68% |
| 8 | VOO VANGUARD INDEX FDS | $367.8M | 2.63% |
| 9 | DUK DUKE ENERGY CORP NEW | $292.7M | 2.1% |
| 10 | LLY ELI LILLY & CO | $288.7M | 2.07% |
| 11 | MA MASTERCARD INCORPORATED | $259.8M | 1.86% |
| 12 | META META PLATFORMS INC | $237.0M | 1.7% |
| 13 | TMO THERMO FISHER SCIENTIFIC INC | $232.5M | 1.67% |
| 14 | JPM JPMORGAN CHASE & CO. | $230.3M | 1.65% |
| 15 | BAC BANK AMERICA CORP | $217.1M | 1.55% |
| 16 | AON AON PLC | $214.5M | 1.54% |
| 17 | UNH UNITEDHEALTH GROUP INC | $204.3M | 1.46% |
| 18 | BBUC BROOKFIELD BUSINESS CORP | $201.8M | 1.45% |
| 19 | TMUS T-MOBILE US INC | $199.8M | 1.43% |
| 20 | LIN LINDE PLC | $197.9M | 1.42% |
Values as reported on the Q3 2025 Form 13F. Every position is in the holdings table below.