QuidelOrtho Corporation (QDEL) Ownership
QDEL ownership summary
as of October 18, 2026- Institutions
- 124.0% of shares outstanding
- Insiders
- 0.90% of shares outstanding
- Shares outstanding
- 68.6M
- Float
- 61.2M shares available to trade
- Short interest
- 29.73% 15.0M shares short
- Days to cover
- 11.10 short interest up 5.4% vs prior month
- Institutions 124.02%
- Insiders 0.90%
QDEL top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 16.34% | 11.2M | $144.6M | +753,396 (+7.2%) | June 30, 2026 |
| 2 | FMR Inc | 10.74% | 7.4M | $95.1M | +772,544 (+11.7%) | June 30, 2026 |
| 3 | Newtyn Management LLC | 9.66% | 6.6M | $85.5M | +2.1M (+45.3%) | June 30, 2026 |
| 4 | Vanguard Portfolio Management, LLC | 6.03% | 4.1M | $53.4M | +103,696 (+2.6%) | June 30, 2026 |
| 5 | Neuberger Berman Group LLC | 5.15% | 3.5M | $45.6M | +2.0M (+131.0%) | June 30, 2026 |
| 6 | Amvescap Plc. | 5.07% | 3.5M | $44.8M | +355,963 (+11.4%) | June 30, 2026 |
| 7 | American Century Companies Inc | 4.82% | 3.3M | $42.7M | +450,947 (+15.8%) | June 30, 2026 |
| 8 | Rubric Capital Management LP | 4.82% | 3.3M | $42.7M | — | June 30, 2026 |
| 9 | Vanguard Capital Management, LLC | 4.48% | 3.1M | $39.6M | +17,344 (+0.6%) | June 30, 2026 |
| 10 | State Street Corp | 4.34% | 3.0M | $38.5M | +192,018 (+6.9%) | June 30, 2026 |
| 11 | Paradigm Capital Management, Inc. | 3.68% | 2.5M | $32.6M | +995,800 (+65.3%) | June 30, 2026 |
| 12 | Private Management Group Inc | 3.02% | 2.1M | $26.7M | +685,622 (+49.5%) | June 30, 2026 |
| 13 | Geode Capital Management, LLC | 2.67% | 1.8M | $23.7M | +119,038 (+6.9%) | June 30, 2026 |
| 14 | T. Rowe Price Investment Management,Inc. | 2.54% | 1.7M | $22.5M | −3.9M (−69.0%) | June 30, 2026 |
| 15 | Morgan Stanley - Brokerage Accounts | 2.44% | 1.7M | $21.6M | +652,015 (+63.7%) | June 30, 2026 |
| 16 | Segall Bryant & Hamill | 1.96% | 1.3M | $17.4M | −197,880 (−12.8%) | June 30, 2026 |
| 17 | Dimensional Fund Advisors, Inc. | 1.83% | 1.3M | $16.2M | −1.8M (−58.9%) | June 30, 2026 |
| 18 | Allianz Asset Management AG | 1.64% | 1.1M | $14.5M | +119,888 (+11.9%) | June 30, 2026 |
| 19 | The Goldman Sachs Group Inc | 1.55% | 1.1M | $13.7M | −1.3M (−55.9%) | June 30, 2026 |
| 20 | Rice Hall James & Associates, LLC | 1.55% | 1.1M | $13.7M | +37,139 (+3.6%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 15 holders added 9.3M shares and 4 cut 7.2M.
QDEL top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.95% | 4.1M | $52.7M | +1,050 (+0.0%) | September 30, 2026 |
| 2 | Fidelity Value | 5.55% | 3.8M | $49.1M | — | August 31, 2026 |
| 3 | Avantis US Small Cap Value ETF | 5.02% | 3.4M | $44.5M | +6,000 (+0.2%) | September 30, 2026 |
| 4 | Invesco Small Cap Value A | 4.52% | 3.1M | $40.0M | +79,674 (+2.6%) | August 31, 2026 |
| 5 | Vanguard MStar Total Stk Mkt Idx Invest | 3.17% | 2.2M | $28.0M | — | August 31, 2026 |
| 6 | iShares Russell 2000 ETF | 2.63% | 1.8M | $23.3M | −20,800 (−1.1%) | September 30, 2026 |
| 7 | Vanguard Small Cap Index | 2.25% | 1.5M | $19.9M | −23,350 (−1.5%) | September 30, 2026 |
| 8 | Vanguard MStar Small Cap Value Index | 1.47% | 1.0M | $13.0M | +8,521 (+0.9%) | September 30, 2026 |
| 9 | Fidelity US All Cap Series F | 1.38% | 947K | $12.2M | +98,992 (+11.7%) | June 30, 2026 |
| 10 | Fidelity Value Strategies | 1.37% | 937K | $12.1M | +29,600 (+3.3%) | August 31, 2026 |
| 11 | Neuberger Intrinsic Value I | 1.27% | 869K | $11.2M | — | September 30, 2026 |
| 12 | T. Rowe Price Small-Cap Value | 1.21% | 832K | $10.7M | −329,700 (−28.4%) | September 30, 2026 |
| 13 | Fidelity Small Cap Index | 1.10% | 754K | $9.7M | +6,353 (+0.8%) | July 31, 2026 |
| 14 | PIMCO RAE US Small Instl | 1.06% | 730K | $9.4M | +26,526 (+3.8%) | June 30, 2026 |
| 15 | iShares Russell 2000 Value ETF | 0.93% | 637K | $8.2M | +966 (+0.2%) | September 30, 2026 |
| 16 | State Street SPDR Port S&P 600 Sm CpETF | 0.92% | 630K | $8.1M | — | September 30, 2026 |
| 17 | iShares S&P Small-Cap 600 Value ETF | 0.85% | 580K | $7.5M | — | September 30, 2026 |
| 18 | Fidelity VIP Value Strategies Initial | 0.64% | 440K | $5.7M | — | August 31, 2026 |
| 19 | Neuberger US Sm Cp Intrs Val USD I Acc | 0.62% | 426K | $5.5M | +103,431 (+32.0%) | June 30, 2026 |
| 20 | Kempen (Lux) Global Small-Cap I | 0.60% | 411K | $5.3M | +410,869 (0.0%) | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
QDEL insider transactions
latest 7| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-13 | Brian J Blaser | Buy | $23.59 | 10,540 | $248,639 |
| 2026-02-13 | Joseph M Busky | Buy | $23.66 | 3,370 | $79,734 |
| 2026-02-13 | Matthew Strobeck | Buy | $23.96 | 10,000 | $239,600 |
| 2025-12-10 | Ann D Rhoads | Buy | $28.27 | 750 | $21,202 |
| 2025-11-26 | Joseph D Jr. Wilkins | Buy | $27.95 | 370 | $10,342 |
| 2025-11-24 | Joseph M Busky | Buy | $26.06 | 4,770 | $124,306 |
| 2025-11-19 | Brian J Blaser | Buy | $21.34 | 23,500 | $501,490 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
QDEL shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns QDEL
Institutional investors own 124.0% of QuidelOrtho's shares and insiders 0.90%. The largest holder is BlackRock Inc with 16.34% of the shares (11.2M), as of June 30, 2026. Among the top 20 institutions, 15 added shares and 4 reduced their stake in the latest filings. Short interest is 29.73% of the float, or 11.10 days of average trading volume. The share count rose 85.3% since 2014.
Related: QDEL analyst forecast, QDEL key metrics. See the QDEL stock overview for the latest quote and news.
QDEL ownership FAQ
Who owns the most QuidelOrtho stock?
The largest shareholders of QuidelOrtho are BlackRock Inc (16.34%), FMR Inc (10.74%), Newtyn Management LLC (9.66%), Vanguard Portfolio Management, LLC (6.03%), Neuberger Berman Group LLC (5.15%).
What percentage of QuidelOrtho is owned by institutions?
Institutions hold 124.0% of QuidelOrtho's shares outstanding; insiders hold 0.90%.
Which funds own QuidelOrtho?
The largest fund holders of QuidelOrtho are iShares Core S&P Small-Cap ETF (5.95%), Fidelity Value (5.55%), Avantis US Small Cap Value ETF (5.02%), Invesco Small Cap Value A (4.52%), Vanguard MStar Total Stk Mkt Idx Invest (3.17%).
What is QuidelOrtho's short interest?
15.0M shares of QuidelOrtho were sold short, 29.73% of the float; at the average daily volume it would take 11.10 days to cover.
Are insiders buying or selling QuidelOrtho?
Of the latest 7 reported insider transactions in QuidelOrtho (since November 19, 2025), 7 were purchases and 0 were sales.
How many shares of QuidelOrtho are outstanding?
QuidelOrtho has 68.6M shares outstanding, of which 61.2M are in the public float.