QUIDELORTHO CORP QDEL
COM · Common Stock · CUSIP 219798105 · ISIN US2197981051
- SectorHealth care
- IndustryIn Vitro & In Vivo Diagnostic Substances
- HeadquartersSan Diego, CA
- Founded1979
- Websitequidel.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $33.22. Options: 12 managers hold calls ($15.8m notional), 11 hold puts ($7.1m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 313 |
| Q4 2022 | 346 |
| Q1 2023 | 332 |
| Q2 2023 | 313 |
| Q3 2023 | 305 |
| Q4 2023 | 306 |
| Q1 2024 | 271 |
| Q2 2024 | 261 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 179 | 149 |
| Q1 2023 | 151 | 161 |
| Q2 2023 | 140 | 172 |
| Q3 2023 | 114 | 178 |
| Q4 2023 | 137 | 142 |
| Q1 2024 | 124 | 166 |
| Q2 2024 | 143 | 130 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $179.6m | $36.0m | 0.20 |
| Q4 2023 | $50.7m | $31.4m | 0.62 |
| Q1 2024 | $24.8m | $8.3m | 0.33 |
| Q2 2024 | $15.8m | $7.1m | 0.45 |
Biggest buyers
| Madison Avenue Partners, LP | New | +1.5m |
| Rubric Capital Management LP | Added | +1.2m |
| Newtyn Management, LLC | New | +1.1m |
| D. E. Shaw & Co., Inc. | Added | +1.1m |
| FMR LLC | Added | +822.2k |
| ExodusPoint Capital Management, LP | New | +474.8k |
| MAVERICK CAPITAL LTD | Added | +372.7k |
| GOLDMAN SACHS GROUP INC | Added | +336.3k |
| Balyasny Asset Management L.P. | Added | +291.6k |
| MILLENNIUM MANAGEMENT LLC | Added | +280.0k |
Biggest sellers
| Carlyle Group Inc. | Reduced | -939.4k |
| NEUBERGER BERMAN GROUP LLC | Sold out | -825.6k |
| MORGAN STANLEY | Reduced | -612.6k |
| Clearbridge Investments, LLC | Sold out | -520.2k |
| LGT CAPITAL PARTNERS LTD. | Reduced | -454.0k |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Sold out | -348.0k |
| ArrowMark Colorado Holdings LLC | Reduced | -296.8k |
| Clearline Capital LP | Reduced | -285.7k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | -253.4k |
| CITADEL ADVISORS LLC | Reduced | -242.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $3.0m89.3k shares |
| CITADEL ADVISORS LLC | Reduced | $2.6m77.9k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $1.9m56.0k shares |
| Walleye Capital LLC | Added | $1.8m54.3k shares |
| Caption Management, LLC | Reduced | $1.5m45.0k shares |
| WOLVERINE TRADING, LLC | Added | $1.4m41.5k shares |
| SIMPLEX TRADING, LLC | Added | $1.1m34.5k shares |
| JANE STREET GROUP, LLC | Added | $1.1m31.9k shares |
| UBS Group AG | New | $830.5k25.0k shares |
| IMC-Chicago, LLC | New | $611.2k18.4k shares |
Biggest puts
| D. E. Shaw & Co., Inc. | New | $1.8m54.3k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $1.2m35.3k shares |
| CITADEL ADVISORS LLC | Added | $940.1k28.3k shares |
| Caption Management, LLC | New | $664.4k20.0k shares |
| Walleye Capital LLC | Added | $598.0k18.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $534.8k16.1k shares |
| MILLENNIUM MANAGEMENT LLC | New | $508.3k15.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $435.0k13.1k shares |
| IMC-Chicago, LLC | Added | $421.9k12.7k shares |
| GROUP ONE TRADING LLC | Reduced | $19.9k600 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +2.3 pts · filed 2025-07-17 | 14.8% |
| Newtyn Management, LLC 13G · passive investor +1.9 pts · filed 2026-08-14 | 9.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.0% |
| FMR LLC 13G · institution -5.7 pts · filed 2026-10-07 | 5.8% |
| Rubric Capital Management LP 13G · institution -1.3 pts · filed 2026-02-13 | 5.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
| Invesco Ltd. 13G · institution +0.5 pts · filed 2026-08-13 | 5.1% |
Fell to 5% or below in the last year: T. Rowe Price Investment Management, Inc. (2.6%, 2026-08-14), Neuberger Berman Group LLC (4.9%, 2026-08-05), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 1 | $729.4k | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 1 | $99.7k | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-28 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $1.7m49.9k shares |
| 2024-06-27 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $1.6m46.4k shares |
| 2024-06-26 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.7m81.5k shares |
| 2024-06-25 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.2m67.5k shares |
| 2024-06-24 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.5m73.7k shares |
| 2024-06-21 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.4m68.6k shares |
| 2024-06-20 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.3m67.2k shares |
| 2024-06-18 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $1.7m48.5k shares |
| 2024-06-17 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $3.6m99.6k shares |
| 2024-06-14 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $4.6m128.0k shares |
| 2024-06-13 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $5.4m144.2k shares |
| 2024-06-12 | TC Group Cayman Investment Holdings, L.P. +8 10% owner · See footnotes | Sold plan | $2.6m64.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| Carlyle Group Inc. 36.35% of their portfolio | 11.5m $382.7m | Reduced -939.4k |
| T. Rowe Price Investment Management, Inc. 0.20% of their portfolio | 9.5m $315.4m | Reduced -204.4k |
| BlackRock Inc. 0.00% of their portfolio | 4.9m $162.6m | Added +28.9k |
| VANGUARD GROUP INC 0.00% of their portfolio | 4.9m $162.4m | Added +9.1k |
| Rubric Capital Management LP 3.19% of their portfolio | 3.6m $121.1m | Added +1.2m |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 2.6m $85.6m | Reduced -158.3k |
| ArrowMark Colorado Holdings LLC 0.81% of their portfolio | 2.1m $68.1m | Reduced -296.8k |
| MAVERICK CAPITAL LTD 1.09% of their portfolio | 1.7m $57.4m | Added +372.7k |
| STATE STREET CORP 0.00% of their portfolio | 1.6m $54.2m | Added +48.7k |
| D. E. Shaw & Co., Inc. 0.07% of their portfolio | 1.6m $51.7m | Added +1.1m |
| Madison Avenue Partners, LP 6.28% of their portfolio | 1.5m $49.7m | New |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.3m $42.2m | Reduced -154.3k |
| Newtyn Management, LLC 6.95% of their portfolio | 1.1m $37.0m | New |
| JANA Partners Management, LP 1.99% of their portfolio | 1.0m $34.1m | Reduced -169.4k |
| FMR LLC 0.00% of their portfolio | 981.7k $32.6m | Added +822.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 904.6k $30.1m | Added +27.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 735.2k $24.4m | Added +65.6k |
| NORGES BANK 0.00% of their portfolio | 612.6k $20.3m | Added +3.8k |
| PRIVATE MANAGEMENT GROUP INC 0.78% of their portfolio | 610.6k $20.3m | Added +152.8k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.22% of their portfolio | 593.2k $19.7m | Added +52.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 579.1k $19.2m | Added +336.3k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 567.7k $18.9m | Added +248.9k |
| TD Asset Management Inc 0.02% of their portfolio | 562.4k $18.7m | Added +26.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio | 537.2k $17.8m | Reduced -20.1k |
| MORGAN STANLEY 0.00% of their portfolio | 532.9k $17.7m | Reduced -612.6k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 525.1k $17.4m | Reduced -64.1k |
| LSV ASSET MANAGEMENT 0.04% of their portfolio | 523.2k $17.4m | Reduced -235.1k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 513.6k $17.1m | Reduced -253.4k |
| ExodusPoint Capital Management, LP 0.17% of their portfolio | 474.8k $15.8m | New |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 406.3k $13.5m | Added +280.0k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 378.3k $12.6m | Added +18.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 368.0k $12.2m | Added +63.9k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 364.0k $12.1m | Added +291.6k |
| Aristotle Capital Boston, LLC 0.38% of their portfolio | 337.6k $11.2m | Reduced -18.1k |
| Clearline Capital LP 0.89% of their portfolio | 306.7k $10.2m | Reduced -285.7k |
| Invesco Ltd. 0.00% of their portfolio | 303.1k $10.1m | Reduced -13.6k |
| Kepos Capital LP 3.87% of their portfolio | 300.0k $10.0m | Added +200.0k |
| Goodman Financial Corp 2.06% of their portfolio | 279.0k $9.3m | Added +19.7k |
| LGT CAPITAL PARTNERS LTD. 0.31% of their portfolio | 271.3k $9.0m | Reduced -454.0k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.14% of their portfolio | 267.8k $8.9m | New |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 254.2k $8.4m | Reduced -89.1k |
| GAMCO INVESTORS, INC. ET AL 0.08% of their portfolio | 223.1k $7.4m | Added +15.3k |
| HBK INVESTMENTS L P 0.17% of their portfolio | 216.4k $7.2m | Reduced -17.2k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.05% of their portfolio | 214.1k $7.1m | Reduced -2.3k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 208.2k $6.9m | Added +28.9k |
| Leeward Investments, LLC - MA 0.30% of their portfolio | 196.3k $6.5m | Reduced -22.2k |
| Retirement Systems of Alabama 0.02% of their portfolio | 188.0k $6.2m | Reduced -924 |
| GAGNON SECURITIES LLC 1.31% of their portfolio | 174.8k $5.8m | Reduced -49.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 165.4k $5.5m | Reduced -21.1k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 160.2k $5.3m | Added +154.6k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.12% of their portfolio | 155.5k $5.2m | Added +130.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 155.2k $5.2m | Added +53.9k |
| GABELLI FUNDS LLC 0.04% of their portfolio | 153.6k $5.1m | Added +9.5k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 150.8k $5.0m | Added +10.3k |
| Integral Health Asset Management, LLC 0.50% of their portfolio | 150.0k $5.0m | New |
| MARSHALL WACE, LLP 0.01% of their portfolio | 143.6k $4.8m | Added +99.8k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.09% of their portfolio | 141.6k $4.7m | Reduced -2.2k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.14% of their portfolio | 141.2k $4.7m | Reduced -52.2k |
| WINTON GROUP Ltd 0.32% of their portfolio | 140.5k $4.7m | New |
| Skylands Capital, LLC 0.66% of their portfolio | 139.4k $4.6m | Added +6.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 138.3k $4.6m | Added +115.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 137.4k $4.6m | Reduced -5.6k |
| TUDOR INVESTMENT CORP ET AL 0.05% of their portfolio | 135.8k $4.5m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 129.5k $4.3m | Added +21.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 123.3k $4.1m | Added +99.3k |
| ORACLE INVESTMENT MANAGEMENT INC 4.22% of their portfolio | 118.3k $3.9m | Reduced -38.9k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.64% of their portfolio | 105.4k $3.5m | New |
| Swiss National Bank 0.00% of their portfolio | 105.2k $3.5m | Added +6.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 104.4k $3.5m | Reduced -236.1k |
| Legal & General Group Plc 0.00% of their portfolio | 99.3k $3.3m | Reduced -36.0k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.06% of their portfolio | 96.2k $3.2m | Reduced -18.3k |
| California Public Employees Retirement System 0.00% of their portfolio | 95.4k $3.2m | Added +717 |
| SEI INVESTMENTS CO 0.00% of their portfolio | 93.5k $3.1m | Reduced -30.5k |
| Man Group plc 0.01% of their portfolio | 88.4k $2.9m | Reduced -156.1k |
| TWINBEECH CAPITAL LP 0.05% of their portfolio | 81.9k $2.7m | New |
| Engineers Gate Manager LP 0.06% of their portfolio | 80.9k $2.7m | Added +58.1k |
| Tower Research Capital LLC (TRC) 0.05% of their portfolio | 80.8k $2.7m | Added +77.7k |
| BARCLAYS PLC 0.00% of their portfolio | 70.2k $2.3m | Added +12.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 68.3k $2.3m | Reduced -12.3k |
| Corebridge Financial, Inc. 0.01% of their portfolio | 62.7k $2.1m | First filing |
| Edgestream Partners, L.P. 0.09% of their portfolio | 58.4k $1.9m | Added +39.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 52.3k $1.7m | Added +1.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 51.1k $1.7m | Reduced -4.8k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 49.9k $1.7m | Reduced -5.9k |
| COMERICA BANK 0.01% of their portfolio | 48.0k $1.6m | Reduced -22.2k |
| ALGERT GLOBAL LLC 0.05% of their portfolio | 46.8k $1.6m | Added +450 |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 46.8k $1.6m | Reduced -3.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 46.4k $1.5m | Added +29.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 45.8k $1.5m | Added +17.2k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 45.4k $1.5m | Added +1.1k |
| NORDEA INVESTMENT MANAGEMENT AB 0.00% of their portfolio | 44.5k $1.5m | Reduced -8.3k |
| Tejara Capital Ltd 0.54% of their portfolio | 44.4k $1.5m | Reduced -25.6k |
| SEVEN EIGHT CAPITAL, LP 0.15% of their portfolio | 43.4k $1.4m | Reduced -6.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 42.4k $1.4m | Reduced -18 |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 41.1k $1.4m | Reduced -19.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 40.8k $1.4m | Added +983 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 40.8k $1.4m | Reduced -33.7k |
| Bridgewater Associates, LP 0.01% of their portfolio | 40.1k $1.3m | Reduced -5.5k |
| UBS Group AG 0.00% of their portfolio | 39.9k $1.3m | Added +8.8k |
| Jump Financial, LLC 0.02% of their portfolio | 34.9k $1.2m | New |