Filer Snapshot

OMERS ADMINISTRATION Corp

CIK 0001053321. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

57

Latest filing

15 May 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13F-HR for Q1 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

Latest 13F portfolio

$15.55B

1,096 holdings for Q1 2026

Open portfolio

Largest parsed holding

VOO

$949.38M reported value

Open holding

13D/G large stake

BBUC

27 Mar 2026 · 8.7% ownership

Open 13D/G

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Source: SEC Form 13F

13F-HR filed on 15 May 2026 for CIK 0001053321.

View source filing
Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

13F portfolio$15.55B

Quarterly institutional holdings reported on Form 13F.

Latest reported 13F value

13F
$15.55B

Reported market value from the latest parsed Form 13F information table; this is not total assets under management.

Largest 13F holdings

13F
VOO NVDA AAPL AMZN BBUC
+15 moreMSFT GOOGL KO BAC LLY PLD AVGO JPM CVX TMO MRK AON META TMUS UNP

Largest symbols in the latest parsed Form 13F information table.

Largest 13F holdings

Largest symbols in the latest parsed Form 13F information table.

VOO NVDA AAPL AMZN BBUC MSFT GOOGL KO
+12 moreBAC LLY PLD AVGO JPM CVX TMO MRK AON META TMUS UNP

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

BBUC
How to read these SEC ownership signals
  • Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different SEC disclosure questions.
  • Open the linked research path when you need the filing, CIK, issuer, or CUSIP trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
900 100 Adelaide St W, Toronto, M5H 0E2
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Incorporated in
Ontario, Canada
Former names on EDGAR
ONTARIO MUNICIPAL EMPLOYEE RETIREMENT BOARD (to 01 Feb 2005)

Filer intelligence

What SEC filings say about OMERS ADMINISTRATION Corp

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

Quick read

  • Latest parsed 13F shows $15.55B across 1,096 reported holdings for Q1 2026.
  • Largest parsed 13F holding: VOO at $949.38M.
  • 1 recent 13D/G stake row found; top row is BBUC at 8.7% ownership.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio 1,096 rows

Quarterly institutional portfolio holdings.

Open
13D/G stakes 1 rows

Beneficial ownership and large-stake disclosures.

Open
Forms 3/4/5 No rows yet

Officer, director, and 10% owner holdings or transactions.

Open

Top parsed 13F holdings

Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.

Q1 2026 - 15 May 2026

Top 5 concentration

24%

Share of latest parsed 13F value represented by the visible holdings below.

Top 5 reported value

$3.67B

Compared with $15.55B total 13F value.

Top 5 net change

+$1.7B

Position-value change inside the visible top holdings only.

13F concentration map

A simple visual split of the latest parsed 13F portfolio.

Largest add: VOO · Largest trim: BBU

VOO NVDA AAPL AMZN BBUC Other holdings

VOO

6.1%

Vanguard Index Fds

$949.38M

NVDA

5.4%

Nvidia Corporation

$833.7M

AAPL

4.7%

Apple Inc

$723.68M

AMZN

3.8%

Amazon Com Inc

$587.65M

BBUC

3.7%

Brookfield Business Corp

$571.39M

13D/G large-stake context

BBUC

27 Mar 2026 · Class A Subordinate Voting Shares

8.7%

Latest update

What changed recently for OMERS ADMINISTRATION Corp

New filing available

Latest 13F period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

15 May 2026

Page type

Filer profile

Latest period

Q1 2026

Institutional portfolio context was refreshed from a 13F filing filed on 15 May 2026.

Benchmark Context

Benchmark context for this company

OMERS ADMINISTRATION Corp has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest 13F period: Q1 2026. That gives you a fresh baseline before you compare this company with peers.

  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
  • Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

SEC filing record

CIK 0001053321 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
57
First seen
13 Feb 2014
Latest filing
15 May 2026
Entity
Company

Latest Filings

Showing the latest 12 of 57 SEC filings for OMERS ADMINISTRATION Corp.

13F-HR

13F-HR filing

Filing date
15 May 2026
Reporting date
31 Mar 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G

SCHEDULE 13G filing

Filing date
10 Apr 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G

SCHEDULE 13G filing

Filing date
08 Apr 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Feb 2026
Reporting date
31 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
14 Nov 2025
Reporting date
30 Sep 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Aug 2025
Reporting date
30 Jun 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
14 May 2025
Reporting date
31 Mar 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
14 Feb 2025
Reporting date
31 Dec 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Nov 2024
Reporting date
30 Sep 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Aug 2024
Reporting date
30 Jun 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
14 May 2024
Reporting date
31 Mar 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Feb 2024
Reporting date
31 Dec 2023
SEC evidence
Open document Open filing
Next action
Verify source filing
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