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Livermore
Livermore
ZHEN

QuidelOrtho Corp

QDEL
Exchange
Nasdaq
Industry
In Vitro & In Vivo Diagnostic Substances
SEC CIK
0001906324

No open-market purchases or sales by QuidelOrtho Corp insiders were filed in the last 90 days; 245 institutions reported holding it in 13F filings for Q2 2026, worth $1.45B in total; no superinvestor holds it.

Holders of 5% or more of QDEL

Holders whose latest Schedule 13D or 13G filing reports 5% or more of QuidelOrtho Corp, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of QDEL
HolderLatest formStakeChangeFirst filedLatest filingFiling
T. Rowe Price Investment Management, Inc.13G/A16.70%11.2M shares–Feb 14, 20251 filingFeb 14, 2025SEC
BlackRock, Inc.13G/A14.80%10.0M shares+2.30 ppfrom 12.50%Feb 5, 20252 filingsJul 17, 2025SEC
FMR LLC13G/A11.50%7.85M shares+1.80 ppfrom 9.70%Nov 5, 20254 filingsMay 7, 2026SEC
Newtyn Management, LLC13G/A7.80%5.30M shares+1.10 ppfrom 6.70%May 6, 20262 filingsMay 6, 2026SEC
Rubric Capital Management LP13G/A5.56%3.78M shares−1.30 ppfrom 6.86%Feb 13, 20253 filingsFeb 13, 2026SEC
Vanguard Capital Management LLC13G5.24%3.57M sharesNewApr 30, 20261 filingApr 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

19 Schedule 13D and 13G filings on QuidelOrtho Corp, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on QDEL
Filed (ET)FilerFormStakeChangeEvent dateFiling
May 7, 202610:42 AM ETFMR LLCand 1 other13G/A11.50%7.85M shares+1.80 ppfrom 9.70%Apr 30, 2026SEC
May 6, 20265:13 PM ETInvesco Ltd.13G/A4.60%3.12M shares−0.50 ppfrom 5.10%Below 5%Mar 31, 2026SEC
May 6, 20264:20 PM ETNewtyn Management, LLCand 1 other13G/A7.80%5.30M shares+1.10 ppfrom 6.70%Apr 29, 2026SEC
May 6, 20264:15 PM ETNewtyn Management, LLC13G6.70%4.56M sharesNewMar 31, 2026SEC
May 6, 202611:35 AM ETFMR LLCand 1 other13G/A9.70%6.59M shares+1.70 ppfrom 8.00%Mar 31, 2026SEC
Apr 30, 20261:03 PM ETVanguard Capital Management LLC13G5.24%3.57M sharesNewMar 31, 2026SEC
Mar 27, 202611:35 AM ETVanguard Group Inc13G/A0.00%0 shares−11.52 ppfrom 11.52%Below 5%Mar 13, 2026SEC
Feb 13, 20264:18 PM ETRubric Capital Management LPand 1 other13G/A5.56%3.78M shares−1.30 ppfrom 6.86%Dec 31, 2025SEC
Feb 12, 20263:57 PM ETInvesco Ltd.13G5.10%3.47M shares+2.80 ppfrom 2.30%Dec 31, 2025SEC
Feb 5, 20261:36 PM ETFMR LLCand 1 other13G/A8.00%5.42M shares+1.40 ppfrom 6.60%Dec 31, 2025SEC
Nov 5, 202511:44 AM ETFMR LLCand 1 other13G6.60%4.50M sharesNewSep 30, 2025SEC
Aug 7, 20253:58 PM ETInvesco Ltd.13G/A2.30%1.55M shares−2.80 ppfrom 5.10%Below 5%Jun 30, 2025SEC
Jul 29, 20252:22 PM ETVanguard Group Inc13G/A11.52%7.80M shares–Jun 30, 2025SEC
Jul 17, 20258:12 PM ETBlackRock, Inc.13G/A14.80%10.0M shares+2.30 ppfrom 12.50%Jun 30, 2025SEC
Jul 9, 20254:12 PM ETRubric Capital Management LPand 1 other13G/A6.86%4.64M shares−1.39 ppfrom 8.25%Jun 30, 2025SEC
Feb 14, 20259:45 AM ETT. Rowe Price Investment Management, Inc.13G/A16.70%11.2M shares–Dec 31, 2024SEC
Feb 13, 20254:01 PM ETRubric Capital Management LPand 1 other13G/A8.25%5.55M shares–Dec 31, 2024SEC
Feb 7, 20251:04 PM ETInvesco Ltd.13G5.10%3.45M sharesNewDec 31, 2024SEC
Feb 5, 20255:28 PM ETBlackRock, Inc.13G/A12.50%8.44M shares–Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell QuidelOrtho Corp shares.

No Form 144 notices for QuidelOrtho Corp are on file.