QuidelOrtho Corporation
QuidelOrtho Corporation (QDEL) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · QDEL · as of Sep 30, 2025
Ownership Breakdown
270
Institutional Holders
▼ 6 vs Q2
$2.41B
Total Inst. Value
▲ $123.28M vs Q2
68.19M
Shares Outstanding
freeFloat 98.83%
81.96M
13F Shares Held
▲ 2.50M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
QDEL largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. in vitro & in vivo diagnostic substances | 11.01M | 16.27% | 16.27% | $324.31B | Nov 14, 2025 | ▼ 124.0K |
BLACKROCK, INC. in vitro & in vivo diagnostic substances | 10.22M | 15.10% | 15.10% | $300.98B | Nov 12, 2025 | ▼ 923 |
VANGUARD GROUP INC in vitro & in vivo diagnostic substances | 7.64M | 11.28% | 11.28% | $224.89B | Nov 7, 2025 | ▼ 160.3K |
RUBRIC CAPITAL MANAGEMENT LP in vitro & in vivo diagnostic substances | 4.64M | 6.85% | 6.85% | $136.58B | Nov 14, 2025 | — held |
FMR LLC in vitro & in vivo diagnostic substances | 4.50M | 6.64% | 6.64% | $132.41B | Nov 13, 2025 | ▲ 1.88M |
INVESCO LTD. in vitro & in vivo diagnostic substances | 2.91M | 4.29% | 4.29% | $85.60B | Nov 13, 2025 | ▲ 1.35M |
DIMENSIONAL FUND ADVISORS LP in vitro & in vivo diagnostic substances | 2.86M | 4.22% | 4.22% | $84.21B | Nov 12, 2025 | ▲ 350.6K |
NEWTYN MANAGEMENT, LLC in vitro & in vivo diagnostic substances | 2.70M | 3.99% | 3.99% | $79.52B | Nov 14, 2025 | ▲ 994.3K |
STATE STREET CORP in vitro & in vivo diagnostic substances | 2.67M | 3.94% | 3.94% | $78.59B | Nov 14, 2025 | ▼ 32.2K |
AMERICAN CENTURY COMPANIES INC in vitro & in vivo diagnostic substances | 2.12M | 3.12% | 3.12% | $62.30B | Nov 12, 2025 | ▲ 199.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
30
Increased
+8.82M shares2
New Positions
first time holders16
Decreased
−4.25M shares0
Sold Out
fully exitedNet shares change (top 50)
+4.57M
+8.82M / −4.25M
Net new holders
+16
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
QDEL insider trading · insider activity
Source: SEC Form 4
6
Buy transactions
8
Sell transactions
0.75
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Strobeck Matthew director | May 29, 2026 | Award | 6,829 | — | — | 34.6K | Form 4 ↗ |
WIDDER KENNETH J director | May 29, 2026 | Award | 6,829 | — | — | 43.9K | Form 4 ↗ |
POLAN MARY LAKE PH D director | May 29, 2026 | Award | 6,829 | — | — | 19.5K | Form 4 ↗ |
BUECHLER KENNETH F director | May 29, 2026 | Award | 6,829 | — | — | 108.8K | Form 4 ↗ |
Chiminski John R director | May 29, 2026 | Award | 6,829 | — | — | 9.4K | Form 4 ↗ |
Huennekens R Scott director | May 29, 2026 | Award | 6,829 | — | — | 9.4K | Form 4 ↗ |
Wilkins Joseph D Jr. director | May 29, 2026 | Award | 6,829 | — | — | 18.7K | Form 4 ↗ |
RHOADS ANN D director | May 29, 2026 | Award | 6,829 | — | — | 23.3K | Form 4 ↗ |
Michael Edward L. director | May 29, 2026 | Award | 6,829 | — | — | 28.2K | Form 4 ↗ |
Dilsaver Evelyn S director | May 29, 2026 | Award | 6,829 | — | — | 17.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
QuidelOrtho Corporation (QDEL) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.17%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of QuidelOrtho Corporation is T. ROWE PRICE INVESTMENT MANAGEMENT, INC., holding approximately 11.01 million shares — equal to 16.27% of outstanding shares — as of September 30, 2025.
A total of 270 institutional investors currently hold QDEL stock, with a combined institutional value of approximately $2.41 billion as of the most recent 13F filing period.
Frequently asked questions
QDEL ownershipQuidelOrtho Corporation (QDEL) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is T. ROWE PRICE INVESTMENT MANAGEMENT, INC. with a 16.27% stake. Company insiders hold 1.17%. Data sourced from SEC Form 13F as of September 30, 2025.