QuidelOrtho Corp

QDELNASDAQ

$12.14+1.37 (+12.72% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

QuidelOrtho Corp price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-59.0%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	16.40%	$196M	0.00%	Not reported
FMR LLC	10.78%	$129M	0.01%	Not reported
Newtyn Management, LLC	9.70%	$116M	14.49%	Add 45.33%
Vanguard Portfolio Management LLC	6.05%	$72.4M	0.00%	Not reported
Neuberger Berman Group LLC	5.18%	$62.1M	0.04%	Not reported
Invesco Ltd.	5.09%	$60.8M	0.00%	Not reported
American Century Companies Inc	4.84%	$57.9M	0.03%	Not reported
Rubric Capital Management LP	4.84%	$57.9M	0.53%	Not reported
Vanguard Capital Management LLC	4.50%	$53.8M	0.00%	Not reported
State Street Corp	4.36%	$52.2M	0.00%	Not reported
Paradigm Capital Management Inc	3.69%	$44.2M	1.20%	Add 65.26%
Private Management Group Inc	3.03%	$36.3M	0.96%	Add 49.51%
Geode Capital Management, LLC	2.69%	$32.1M	0.00%	Not reported
T. Rowe Price Investment Management, Inc.	2.55%	$30.5M	0.02%	Reduce 69.03%
Morgan Stanley	2.45%	$29.3M	0.00%	Not reported
Segall Bryant & Hamill, LLC	1.97%	$23.6M	0.28%	Reduce 12.82%
Dimensional Fund Advisors LP	1.84%	$22M	0.00%	Not reported
Allianz Asset Management GmbH	1.65%	$19.7M	0.02%	Not reported
Goldman Sachs Group Inc	1.56%	$18.6M	0.00%	Not reported
Rice Hall James & Associates, LLC	1.56%	$18.6M	0.91%	Add 3.62%
Gagnon Securities LLC	1.51%	$18M	3.48%	Add 155.47%
Charles Schwab Investment Management Inc	1.49%	$17.8M	0.00%	Not reported
AQR Capital Management LLC	1.33%	$16M	0.01%	Not reported
Buckley Capital Advisors, LLC	1.25%	$14.9M	9.23%	New Not reported
Northern Trust Corp	1.10%	$13.2M	0.00%	Not reported
Millennium Management LLC	1.06%	$12.7M	0.00%	Not reported
Van Lanschot Kempen Investment Management N.V.	0.95%	$11.3M	0.09%	Not reported
UBS Group AG	0.84%	$10M	0.00%	Not reported
Gem Investment Advisors, LLC	0.83%	$9.91M	6.08%	Add 90.79%
Skylands Capital, LLC	0.82%	$9.82M	1.21%	Not reported
Vanguard Fiduciary Trust Co	0.66%	$7.92M	0.00%	Not reported
Bank of New York Mellon Corp	0.65%	$7.72M	0.00%	Not reported
Thompson Siegel & Walmsley LLC	0.62%	$7.37M	0.13%	Add 2.58%
Bridgeway Capital Management, LLC	0.58%	$6.99M	0.12%	Not reported
Aristotle Capital Boston, LLC	0.51%	$6.13M	0.41%	Reduce 16.71%
Principal Financial Group Inc	0.48%	$5.77M	0.00%	Not reported
Lightrock Netherlands B.V.	0.43%	$5.09M	1.00%	Reduce 7.63%
D. E. Shaw & Co., Inc.	0.40%	$4.73M	0.00%	Not reported
Empowered Funds, LLC	0.39%	$4.69M	0.02%	Add 5.42%
Gamco Investors, Inc. Et Al	0.37%	$4.4M	0.04%	Not reported
Ameriprise Financial Inc	0.36%	$4.25M	0.00%	Not reported
Gagnon Advisors, LLC	0.35%	$4.22M	2.69%	New Not reported
Susquehanna Portfolio Strategies, LLC	0.35%	$4.2M	0.07%	Add 12.37%
Public Sector Pension Investment Board	0.34%	$4.1M	0.01%	Reduce 3.60%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.34%	$4.09M	0.00%	Not reported
Edgestream Partners, L.P.	0.33%	$3.97M	0.12%	Add 92.17%
Nuveen, LLC	0.32%	$3.87M	0.00%	Not reported
Tudor Investment Corp Et Al	0.29%	$3.41M	0.00%	Not reported
Creative Planning	0.27%	$3.28M	0.00%	Not reported
Sei Investments Co	0.27%	$3.25M	0.00%	Not reported

50 of 233 holders

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