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 ($10.9m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $82.86. Options: 16 managers hold calls ($38.7m notional), 13 hold puts ($20.6m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 313 |
| Q4 2022 | 346 |
| Q1 2023 | 332 |
| Q2 2023 | 313 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $38.5m | $38.1m | 0.99 |
| Q4 2022 | $76.4m | $47.6m | 0.62 |
| Q1 2023 | $37.5m | $26.2m | 0.70 |
| Q2 2023 | $38.7m | $20.6m | 0.53 |
Biggest buyers
| NEUBERGER BERMAN GROUP LLC | Added | +555.6k |
| Stonepine Capital Management, LLC | Added | +340.3k |
| Thrivent Financial for Lutherans | Added | +317.2k |
| Leeward Investments, LLC - MA | New | +126.0k |
| Senvest Management, LLC | Added | +121.0k |
| LSV ASSET MANAGEMENT | Added | +109.2k |
| Man Group plc | New | +92.0k |
| CITADEL ADVISORS LLC | Added | +91.8k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | Added | +89.6k |
| JANUS HENDERSON GROUP PLC | Added | +80.4k |
Biggest sellers
| Pacer Advisors, Inc. | Reduced | -531.0k |
| ENVESTNET ASSET MANAGEMENT INC | Reduced | -239.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -148.8k |
| Alyeska Investment Group, L.P. | Reduced | -142.5k |
| GOLDMAN SACHS GROUP INC | Reduced | -137.2k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -130.3k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -119.9k |
| BROWN CAPITAL MANAGEMENT LLC | Reduced | -114.3k |
| LGT CAPITAL PARTNERS LTD. | Reduced | -111.6k |
| FMR LLC | Reduced | -98.0k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $9.0m108.8k shares |
| ORACLE INVESTMENT MANAGEMENT INC | Added | $6.8m82.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $5.3m64.2k shares |
| Walleye Trading LLC | Added | $4.7m57.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.8m45.8k shares |
| Twin Tree Management, LP | Reduced | $1.5m17.9k shares |
| Walleye Capital LLC | New | $1.5m17.6k shares |
| IMC-Chicago, LLC | New | $1.2m14.4k shares |
| GROUP ONE TRADING LLC | Added | $1.2m14.3k shares |
| Squarepoint Ops LLC | Reduced | $1.0m12.4k shares |
Biggest puts
| Walleye Trading LLC | Added | $4.9m59.1k shares |
| Twin Tree Management, LP | Reduced | $3.7m44.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $3.7m44.1k shares |
| PEAK6 Investments LLC | Reduced | $3.5m41.8k shares |
| CITADEL ADVISORS LLC | Added | $2.1m25.9k shares |
| Squarepoint Ops LLC | New | $787.2k9.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $588.0k7.1k shares |
| Walleye Capital LLC | New | $571.7k6.9k shares |
| JANE STREET GROUP, LLC | Reduced | $314.9k3.8k shares |
| SUMMIT SECURITIES GROUP LLC | New | $265.0k3.2k 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 2023
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 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 1 | $729.4k | — |
| Q2 2023 | 0 | — | 0 | — | — |
None reported in Q2 2023.
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| Carlyle Group Inc. 36.78% of their portfolio | 12.5m $1.0bn | Unchanged |
| T. Rowe Price Investment Management, Inc. 0.37% of their portfolio | 6.6m $550.4m | Added +22.2k |
| BlackRock Inc. 0.01% of their portfolio | 5.0m $414.3m | Added +1.5k |
| VANGUARD GROUP INC 0.01% of their portfolio | 4.9m $405.3m | Added +1.2k |
| ArrowMark Colorado Holdings LLC 2.93% of their portfolio | 3.2m $267.3m | Reduced -56.0k |
| Senvest Management, LLC 8.45% of their portfolio | 3.1m $256.5m | Added +121.0k |
| NEUBERGER BERMAN GROUP LLC 0.13% of their portfolio | 1.7m $141.5m | Added +555.6k |
| STATE STREET CORP 0.01% of their portfolio | 1.6m $128.8m | Added +14.6k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 1.2m $98.7m | Reduced -8.4k |
| Alyeska Investment Group, L.P. 0.63% of their portfolio | 1.0m $83.3m | Reduced -142.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 848.9k $70.3m | Added +55.0k |
| Burgundy Asset Management Ltd. 0.78% of their portfolio | 798.5k $66.2m | Added +23.2k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.02% of their portfolio | 740.3k $61.3m | Reduced -88.6k |
| FRED ALGER MANAGEMENT, LLC 0.31% of their portfolio | 734.9k $60.9m | Reduced -119.9k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 683.8k $56.7m | Added +13.1k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 1.00% of their portfolio | 668.5k $55.4m | Reduced -34.0k |
| Stonepine Capital Management, LLC 18.51% of their portfolio | 619.4k $51.3m | Added +340.3k |
| NORGES BANK 0.01% of their portfolio | 591.3k $49.0m | Added +46.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 578.1k $47.9m | Added +5.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio | 542.8k $45.0m | Added +25.1k |
| JANUS HENDERSON GROUP PLC 0.03% of their portfolio | 531.2k $44.0m | Added +80.4k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 515.4k $42.7m | Reduced -6.4k |
| LGT CAPITAL PARTNERS LTD. 1.47% of their portfolio | 514.8k $42.7m | Reduced -111.6k |
| LAZARD ASSET MANAGEMENT LLC 0.05% of their portfolio | 508.7k $42.1m | Reduced -18.4k |
| FIRST TRUST ADVISORS LP 0.04% of their portfolio | 430.5k $35.7m | Added +7.0k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 379.7k $31.5m | Reduced -16.5k |
| CRAMER ROSENTHAL MCGLYNN LLC 1.56% of their portfolio | 375.0k $31.1m | Added +51.2k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 360.8k $29.9m | Reduced -148.8k |
| Aristotle Capital Boston, LLC 0.84% of their portfolio | 339.0k $28.1m | Added +6.7k |
| Thrivent Financial for Lutherans 0.06% of their portfolio | 331.3k $27.5m | Added +317.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 328.9k $27.3m | Reduced -137.2k |
| TD Asset Management Inc 0.03% of their portfolio | 320.3k $26.5m | Reduced -23.3k |
| Invesco Ltd. 0.01% of their portfolio | 317.7k $26.3m | Reduced -7.5k |
| BROWN CAPITAL MANAGEMENT LLC 0.36% of their portfolio | 310.1k $25.7m | Reduced -114.3k |
| AQR CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 308.5k $25.6m | Reduced -65.5k |
| MORGAN STANLEY 0.00% of their portfolio | 245.5k $20.3m | Added +29.7k |
| ORACLE INVESTMENT MANAGEMENT INC 19.21% of their portfolio | 245.5k $20.3m | Added +49.5k |
| CARDINAL CAPITAL MANAGEMENT LLC /CT 0.76% of their portfolio | 243.3k $20.2m | Reduced -6.4k |
| LSV ASSET MANAGEMENT 0.04% of their portfolio | 232.3k $19.3m | Added +109.2k |
| Cannell & Co. 0.61% of their portfolio | 219.9k $18.2m | Reduced -10.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 217.9k $18.1m | Added +29.4k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 209.6k $17.4m | Reduced -2.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 202.6k $16.8m | Reduced -8.7k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.12% of their portfolio | 201.3k $16.7m | Added +34.1k |
| Ararat Capital Management LP 5.45% of their portfolio | 196.7k $16.3m | Reduced -24.7k |
| Retirement Systems of Alabama 0.07% of their portfolio | 196.4k $16.3m | Added +21.6k |
| GAMCO INVESTORS, INC. ET AL 0.17% of their portfolio | 194.6k $16.1m | Reduced -121 |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 192.6k $16.0m | Added +15.4k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.11% of their portfolio | 181.3k $15.0m | Added +42.9k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.46% of their portfolio | 176.7k $14.6m | Added +89.6k |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 163.7k $13.6m | Reduced -28.3k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 161.0k $13.3m | Added +6.7k |
| ASSETMARK, INC 0.05% of their portfolio | 160.2k $13.3m | Added +2.4k |
| Boston Partners 0.02% of their portfolio | 154.9k $12.8m | Reduced -6.4k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.20% of their portfolio | 152.1k $12.6m | Reduced -4.8k |
| Legal & General Group Plc 0.00% of their portfolio | 141.6k $11.7m | Added +5.0k |
| MACQUARIE GROUP LTD 0.01% of their portfolio | 135.8k $11.3m | Added +9.7k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.22% of their portfolio | 133.6k $11.1m | Added +16.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 132.3k $11.0m | Reduced -19.0k |
| ExodusPoint Capital Management, LP 0.12% of their portfolio | 128.2k $10.6m | Reduced -46.7k |
| GABELLI FUNDS LLC 0.08% of their portfolio | 126.8k $10.5m | Unchanged |
| Leeward Investments, LLC - MA 0.49% of their portfolio | 126.0k $10.4m | New |
| SEI INVESTMENTS CO 0.02% of their portfolio | 123.6k $10.2m | Added +4.0k |
| Clearline Capital LP 1.32% of their portfolio | 123.1k $10.2m | Reduced -7.1k |
| First Eagle Investment Management, LLC 0.02% of their portfolio | 115.9k $9.6m | Added +37.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 112.5k $9.3m | Added +4.5k |
| Prosight Management, LP 2.68% of their portfolio | 110.5k $9.2m | Added +62.1k |
| Swiss National Bank 0.01% of their portfolio | 108.7k $9.0m | Added +1.9k |
| AMERICAN CAPITAL MANAGEMENT INC 0.31% of their portfolio | 107.3k $8.9m | Reduced -45.0k |
| GAGNON SECURITIES LLC 1.79% of their portfolio | 103.8k $8.6m | Added +213 |
| C WorldWide Group Holding A/S 0.11% of their portfolio | 100.0k $8.3m | Unchanged |
| Baird Financial Group, Inc. 0.02% of their portfolio | 94.5k $7.8m | Reduced -19.0k |
| California Public Employees Retirement System 0.01% of their portfolio | 93.4k $7.7m | Reduced -1.9k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 92.3k $7.7m | Added +91.8k |
| Man Group plc 0.02% of their portfolio | 92.0k $7.6m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 91.9k $8.2m | Unchanged |
| PRIVATE MANAGEMENT GROUP INC 0.32% of their portfolio | 91.7k $7.6m | Reduced -39.0k |
| Moran Wealth Management, LLC 0.27% of their portfolio | 85.6k $7.1m | Added +688 |
| AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio | 81.4k $6.7m | Reduced -1.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 77.6k $6.4m | Added +1.8k |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 74.3k $6.2m | Reduced -719 |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 70.0k $5.8m | Reduced -12.8k |
| Pavadi Capital LLC 6.66% of their portfolio | 68.9k $5.7m | New |
| BESSEMER GROUP INC 0.01% of their portfolio | 68.8k $5.7m | Added +4.0k |
| STRS OHIO 0.02% of their portfolio | 68.7k $5.7m | Reduced -87.5k |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 67.4k $5.6m | Added +4.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 61.9k $5.1m | Added +113 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 61.2k $5.1m | Reduced -4.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 60.8k $5.0m | Reduced -7.9k |
| Skylands Capital, LLC 0.72% of their portfolio | 60.7k $5.0m | Added +34.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 56.3k $4.7m | Reduced -8.6k |
| Bridgewater Associates, LP 0.03% of their portfolio | 54.3k $4.5m | Reduced -5.8k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 53.6k $4.4m | Reduced -4.0k |
| PUTNAM INVESTMENTS LLC 0.01% of their portfolio | 52.8k $4.4m | Added +7.5k |
| 1492 Capital Management LLC 2.36% of their portfolio | 48.9k $4.1m | Reduced -38 |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 48.1k $4.0m | Added +3.4k |
| TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio | 47.5k $3.9m | Reduced -454 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 45.0k $3.7m | Added +743 |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 44.2k $3.7m | Added +30.8k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 43.8k $3.6m | Reduced -17.1k |