Who owns QuidelOrtho (QDEL)
Which tracked institutional funds hold QDEL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See QDEL company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
57 tracked funds added or opened QDEL while 39 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
QDEL’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes QDEL more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in QDEL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 228 tracked filers holding QDEL, 137 increased or opened the position and 124 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in QDEL between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- Buckley Capital Advisors, LLC$15M
- VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.$11M
- Gagnon Advisors, LLC$4M
- AYAL Capital Advisors Ltd$3M
- BOOTHBAY FUND MANAGEMENT, LLC$2M
- KENNEDY CAPITAL MANAGEMENT LLC$2M
Full exits 21
- T. Rowe Price Investment Management, Inc.$93M
- FRONTIER CAPITAL MANAGEMENT CO LLC$29M
- NORGES BANK$18M
- SILVERCREST ASSET MANAGEMENT GROUP LLC$15M
- Goodman Financial Corp$7M
- THOMPSON SIEGEL & WALMSLEY LLC$7M
Largest adds
- Newtyn Management, LLC$41M
- NEUBERGER BERMAN GROUP LLC$37M
- BlackRock, Inc.$25M
- FMR LLC$22M
- PARADIGM CAPITAL MANAGEMENT INC/NY$19M
- Invesco Ltd.$15M
Largest trims
- DIMENSIONAL FUND ADVISORS LP$28M
- GOLDMAN SACHS GROUP INC$21M
- Point72 Asset Management, L.P.$12M
- SYSTEMATIC FINANCIAL MANAGEMENT LP$3M
- Monaco Asset Management SAM$3M
- SEGALL BRYANT & HAMILL, LLC$2M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 11,202,523 | $196M | 14.0% | 2026-Q2 |
| FMR LLC added | 7,363,696 | $129M | 9.2% | 2026-Q2 |
| Newtyn Management, LLC added | 6,625,000 | $116M | 8.3% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 4,135,464 | $72M | 5.2% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 3,534,619 | $62M | 4.4% | 2026-Q2 |
| Invesco Ltd. added | 3,473,432 | $61M | 4.4% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 3,307,079 | $58M | 4.1% | 2026-Q2 |
| Rubric Capital Management LP | 3,306,281 | $58M | 4.1% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 3,070,054 | $54M | 3.8% | 2026-Q2 |
| STATE STREET CORP added | 2,978,639 | $52M | 3.7% | 2026-Q2 |
| PARADIGM CAPITAL MANAGEMENT INC/NY added | 2,521,700 | $44M | 3.2% | 2026-Q2 |
| PRIVATE MANAGEMENT GROUP INC added | 2,070,391 | $36M | 2.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,834,237 | $32M | 2.3% | 2026-Q2 |
| MORGAN STANLEY added | 1,675,525 | $29M | 2.1% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 1,345,530 | $24M | 1.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,253,683 | $22M | 1.6% | 2026-Q2 |
| Allianz Asset Management GmbH added | 1,126,225 | $20M | 1.4% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,064,744 | $19M | 1.3% | 2026-Q2 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 1,063,559 | $19M | 1.3% | 2026-Q2 |
| GAGNON SECURITIES LLC added | 1,030,371 | $18M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,018,104 | $18M | 1.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 911,115 | $16M | 1.1% | 2026-Q2 |
| Buckley Capital Advisors, LLC new | 850,335 | $15M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 751,078 | $13M | 0.9% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 722,480 | $13M | 0.9% | 2026-Q2 |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. added | 647,069 | $11M | 0.8% | 2026-Q2 |
| UBS Group AG added | 570,926 | $10M | 0.7% | 2026-Q2 |
| Gem Investment Advisors, LLC added | 565,998 | $10M | 0.7% | 2026-Q2 |
| Skylands Capital, LLC added | 560,414 | $10M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 451,917 | $8M | 0.6% | 2026-Q2 |
| Bank of New York Mellon Corp added | 440,774 | $8M | 0.6% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 399,089 | $7M | 0.5% | 2026-Q2 |
| Aristotle Capital Boston, LLC trimmed | 350,145 | $6M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 329,580 | $6M | 0.4% | 2026-Q2 |
| Lightrock Netherlands B.V. trimmed | 290,547 | $5M | 0.4% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 270,233 | $5M | 0.3% | 2026-Q2 |
| Empowered Funds, LLC added | 267,989 | $5M | 0.3% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 251,235 | $4M | 0.3% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 242,714 | $4M | 0.3% | 2026-Q2 |
| Gagnon Advisors, LLC new | 241,097 | $4M | 0.3% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 240,074 | $4M | 0.3% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 234,277 | $4M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 233,675 | $4M | 0.3% | 2026-Q2 |
| Edgestream Partners, L.P. added | 226,547 | $4M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 220,735 | $4M | 0.3% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL trimmed | 194,953 | $3M | 0.2% | 2026-Q2 |
| Creative Planning added | 187,386 | $3M | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 185,272 | $3M | 0.2% | 2026-Q2 |
| AYAL Capital Advisors Ltd new | 180,000 | $3M | 0.2% | 2026-Q2 |
| GABELLI FUNDS LLC added | 176,400 | $3M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 175,945 | $3M | 0.2% | 2026-Q2 |
| MARSHALL WACE, LLP added | 172,500 | $3M | 0.2% | 2026-Q2 |
| Legal & General Group Plc trimmed | 162,798 | $3M | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 145,495 | $3M | 0.2% | 2026-Q2 |
| Ballast Asset Management, LP trimmed | 144,526 | $3M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 136,640 | $2M | 0.2% | 2026-Q2 |
| Tejara Capital Ltd trimmed | 129,890 | $2M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 126,724 | $2M | 0.2% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 110,561 | $2M | 0.1% | 2026-Q2 |
| BEACONLIGHT CAPITAL, LLC trimmed | 102,800 | $2M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 102,620 | $2M | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 101,871 | $2M | 0.1% | 2026-Q2 |
| Summit Trail Advisors, LLC added | 99,157 | $2M | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 97,657 | $2M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 92,234 | $2M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 90,865 | $2M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 89,763 | $2M | 0.1% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC new | 89,293 | $2M | 0.1% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd added | 87,117 | $2M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC added | 85,251 | $1M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 78,143 | $1M | 0.1% | 2026-Q2 |
| MOODY NATIONAL BANK TRUST DIVISION added | 70,748 | $1M | 0.1% | 2026-Q2 |
| Monaco Asset Management SAM trimmed | 65,000 | $1M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 62,479 | $1M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 60,070 | $1M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 57,129 | $1M | 0.1% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 53,623 | $939K | 0.1% | 2026-Q2 |
| Marble Bar Asset Management LLP new | 50,000 | $876K | 0.1% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 45,235 | $792K | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 40,880 | $716K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 40,193 | $704K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 39,740 | $696K | 0.0% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 38,662 | $677K | 0.0% | 2026-Q2 |
| Illinois Municipal Retirement Fund trimmed | 34,795 | $609K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 34,710 | $608K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 33,805 | $596K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 31,747 | $556K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 30,841 | $540K | 0.0% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 30,422 | $533K | 0.0% | 2026-Q2 |
| Louisiana State Employees Retirement System | 30,100 | $495K | 0.0% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 29,094 | $510K | 0.0% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD | 29,033 | $509K | 0.0% | 2026-Q2 |
| Jupiter Topco LLC new | 28,993 | $508K | 0.0% | 2026-Q2 |
| NorthRock Partners, LLC trimmed | 28,817 | $505K | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 28,564 | $500K | 0.0% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 28,482 | $499K | 0.0% | 2026-Q2 |
| Mariner, LLC added | 27,962 | $490K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 27,359 | $479K | 0.0% | 2026-Q2 |
| MIRABELLA FINANCIAL SERVICES LLP new | 27,172 | $476K | 0.0% | 2026-Q2 |
| Verdence Capital Advisors LLC trimmed | 26,918 | $471K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.