HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
PensionPosition in DGX — Quest Diagnostics Inc
CIK 1535845
TORONTO, A6
Position in DGX
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$33,495,333
+$4,273,402 QoQ
Shares Held
170,912
+1.5% QoQ
Ownership
0.154%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
14 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in DGX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND holds $320,042,579 across 15 Diagnostics & Research names. DGX ranks #4 (10.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | DHR |
Danaher Corp /De/
|
614,167 | $116,446,063 | |
| 2 | IDXX |
Idexx Laboratories Inc /De
|
133,891 | $75,232,013 | |
| 3 | TMO |
Thermo Fisher Scientific Inc.
|
81,049 | $39,838,014 | |
| 4 | DGX |
Quest Diagnostics Inc
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|
170,912 | $33,495,333 | |
| 5 | MTD |
Mettler Toledo International Inc/
|
24,278 | $30,619,413 | |
| 6 | A |
Agilent Technologies, Inc.
|
60,573 | $6,904,110 | |
| 7 | WAT |
Waters Corp /De/
|
20,893 | $6,221,935 | |
| 8 | MEDP |
Medpace Holdings, Inc.
|
6,332 | $3,040,563 |
All Filings in DGX
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14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $33,495,333 | 170,912 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $29,221,931 | 168,397 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $843,697 | 4,427 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $799,892 | 4,453 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $223,851 | 1,323 | Shares | Sole | 2025-05-14 | |
| 2022-12-31 | $508,430 | 3,250 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $721,171 | 5,878 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,534,066 | 19,056 | Shares | Sole | 2022-08-11 | |
| 2022-03-31 | $947,208 | 6,921 | Shares | Sole | 2022-05-12 | |
| 2021-12-31 | $1,101,208 | 6,365 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $10,026 | 69 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $9,105 | 69 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $2,554,607 | 19,905 | Shares | Sole | 2021-05-13 | |
| 2020-09-30 | $130,060 | 1,136 | Shares | Sole | 2021-03-01 | |
| No filing history on record for this holder in this stock. | ||||||