QuidelOrtho (QDEL) Institutional Ownership

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Current Institutional Ownership Percentage: 99.00%
Number of Institutional Buyers (last 12 months): 112
Total Institutional Inflows (last 12 months): $667.09M

Number of Institutional Sellers (last 12 months): 82
Total Institutional Outflows (last 12 months): $372.24M

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QDEL Institutional Buying and Selling by Quarter

QuidelOrtho Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/24/2026	California State Teachers Retirement System	1,591,500	$27.88M	0.0%	+1,611.5%	2.321%
8/20/2026	Newtyn Management LLC	6,625,000	$116.04M	14.7%	+45.3%	9.662%
8/20/2026	Beaconlight Capital LLC	102,800	$1.80M	0.6%	-32.4%	0.150%
8/20/2026	Private Management Group Inc.	2,070,391	$36.26M	1.0%	+49.5%	3.019%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	233,675	$4.09M	0.0%	+18.6%	0.341%
8/18/2026	Empowered Funds LLC	267,989	$4.69M	0.0%	N/A	0.391%
8/17/2026	Corient Private Wealth LP	14,978	$262K	0.0%	N/A	0.022%
8/17/2026	Bank of America Corp DE	101,871	$1.78M	0.0%	N/A	0.149%
8/15/2026	Jupiter Topco LLC	28,993	$508K	0.0%	N/A	0.042%
8/14/2026	Legal & General Group Plc	162,798	$2.85M	0.0%	N/A	0.237%
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8/14/2026	The Manufacturers Life Insurance Company	28,482	$499K	0.0%	N/A	0.042%
8/14/2026	Paradigm Capital Management Inc. NY	2,521,700	$44.17M	1.2%	N/A	3.678%
8/12/2026	Quantbot Technologies LP	23,945	$419K	0.0%	N/A	0.035%
8/11/2026	Allworth Financial LP	3,209	$56K	0.0%	N/A	0.005%
8/11/2026	Tejara Capital Ltd	129,890	$2.28M	0.9%	N/A	0.190%
8/7/2026	BlackRock Inc.	11,202,523	$196.21M	0.0%	N/A	16.428%
8/7/2026	Deutsche Bank AG	92,234	$1.62M	0.0%	N/A	0.135%
8/7/2026	Rice Hall James & Associates LLC	1,063,559	$18.63M	0.9%	N/A	1.560%
8/7/2026	Monaco Asset Management SAM	65,000	$1.14M	0.1%	N/A	0.095%
8/6/2026	Bank of New York Mellon Corp	440,774	$7.72M	0.0%	N/A	0.646%
8/6/2026	State of Wyoming	20,522	$359K	0.0%	N/A	0.030%
8/6/2026	GSA Capital Partners LLP	27,961	$490K	0.0%	N/A	0.041%
7/10/2026	Wedge Capital Management L L P NC	53,623	$939K	0.0%	-4.6%	0.079%
7/7/2026	GAMMA Investing LLC	2,185	$38K	0.0%	+67.7%	0.003%
7/7/2026	Moody National Bank Trust Division	70,748	$1.24M	0.1%	+1.1%	0.104%
5/22/2026	Segall Bryant & Hamill LLC	1,543,410	$25.36M	0.3%	+29.2%	2.263%
5/19/2026	Bank of America Corp DE	126,973	$2.09M	0.0%	-29.8%	0.186%
5/19/2026	Edgestream Partners L.P.	117,888	$1.94M	0.1%	N/A	0.173%
5/18/2026	Amundi	20,989	$345K	0.0%	+50.0%	0.031%
5/18/2026	California State Teachers Retirement System	92,989	$1.53M	0.0%	+49.7%	0.136%
5/18/2026	Rubric Capital Management LP	3,306,281	$54.32M	0.6%	-12.5%	4.849%
5/18/2026	Empowered Funds LLC	254,217	$4.18M	0.0%	+3.2%	0.373%
5/16/2026	The Manufacturers Life Insurance Company	27,465	$451K	0.0%	-5.1%	0.040%
5/16/2026	Quantinno Capital Management LP	150,646	$2.48M	0.0%	-12.9%	0.221%
5/15/2026	Rice Hall James & Associates LLC	1,026,420	$16.86M	0.9%	+23.1%	1.505%
5/14/2026	Gabelli Funds LLC	166,400	$2.73M	0.0%	-3.2%	0.244%
5/14/2026	Gamco Investors INC. ET AL	253,900	$4.17M	0.0%	+7.0%	0.372%
5/14/2026	Beaconlight Capital LLC	152,057	$2.50M	1.3%	-36.4%	0.223%
5/14/2026	Paradigm Capital Management Inc. NY	1,525,900	$25.07M	1.0%	+84.1%	2.238%
5/14/2026	Systematic Financial Management LP	225,853	$3.71M	0.1%	-3.4%	0.331%
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5/14/2026	Sei Investments Co.	269,178	$4.42M	0.0%	+27.2%	0.395%
5/14/2026	State of Wyoming	2,332	$38K	0.0%	-46.6%	0.003%
5/8/2026	PNC Financial Services Group Inc.	3,097	$51K	0.0%	-68.0%	0.005%
5/7/2026	Dimensional Fund Advisors LP	3,048,768	$50.09M	0.0%	+7.5%	4.477%
5/6/2026	Lightrock Netherlands B.V.	314,547	$5.17M	0.5%	-31.8%	0.462%
5/6/2026	Goodman Financial Corp	437,157	$7.18M	1.2%	+12.5%	0.642%
5/5/2026	Bank of New York Mellon Corp	427,645	$7.03M	0.0%	-2.8%	0.628%
5/5/2026	Illinois Municipal Retirement Fund	43,751	$719K	0.0%	+24.9%	0.064%
5/4/2026	Principal Financial Group Inc.	331,184	$5.44M	0.0%	+2.1%	0.486%
5/1/2026	Fifth Third Bancorp	54,328	$893K	0.0%	+42,014.7%	0.080%
4/30/2026	Hsbc Holdings PLC	21,263	$342K	0.0%	N/A	0.031%
4/27/2026	New York State Teachers Retirement System	54,594	$897K	0.0%	-4.1%	0.080%
4/27/2026	Y Intercept Hong Kong Ltd	48,087	$790K	0.0%	N/A	0.071%
4/27/2026	Leonteq Securities AG	3,466	$57K	0.0%	+555.2%	0.005%
4/22/2026	Skylands Capital LLC	341,554	$5.61M	0.7%	+153.6%	0.502%
4/21/2026	Louisiana State Employees Retirement System	30,100	$495K	0.0%	N/A	0.044%
4/18/2026	Leeward Investments LLC MA	186,851	$3.07M	0.2%	-2.6%	0.274%
3/9/2026	Corient Private Wealth LLC	9,698	$280K	0.0%	N/A	0.014%
2/19/2026	T. Rowe Price Investment Management Inc.	11,832,098	$337.93M	0.2%	+7.4%	17.418%
2/19/2026	Invesco Ltd.	3,470,656	$99.12M	0.0%	+19.4%	5.109%
2/19/2026	Corient Private Wealth LLC	9,698	$280K	0.0%	N/A	0.014%
2/18/2026	State of Tennessee Department of Treasury	14,794	$402K	0.0%	-32.0%	0.022%
2/18/2026	Susquehanna Portfolio Strategies LLC	33,984	$971K	0.0%	-81.1%	0.050%
2/18/2026	Millennium Management LLC	161,461	$4.61M	0.0%	-56.5%	0.238%
2/18/2026	Moore Capital Management LP	44,107	$1.26M	0.0%	N/A	0.065%
2/18/2026	Clearline Capital LP	316,856	$9.05M	0.4%	+36.2%	0.466%
2/18/2026	Aristotle Capital Boston LLC	391,904	$11.19M	0.6%	+2.5%	0.577%
2/18/2026	Balyasny Asset Management L.P.	348,490	$9.95M	0.0%	N/A	0.513%
2/18/2026	Beaconlight Capital LLC	239,049	$6.83M	4.0%	+20.1%	0.352%
2/18/2026	Bridgeway Capital Management LLC	402,361	$11.49M	0.2%	-6.0%	0.592%
2/17/2026	Schonfeld Strategic Advisors LLC	15,520	$443K	0.0%	+47.1%	0.023%
2/17/2026	AQR Capital Management LLC	46,075	$1.32M	0.0%	-81.2%	0.068%
2/17/2026	Sandler Capital Management	64,313	$1.84M	0.6%	N/A	0.095%
2/17/2026	ArrowMark Colorado Holdings LLC	422,510	$12.07M	0.3%	-46.0%	0.622%
2/17/2026	Price T Rowe Associates Inc. MD	62,439	$1.78M	0.0%	+4.7%	0.092%
2/17/2026	T. Rowe Price Investment Management Inc.	4,938,706	$141.05M	0.1%	-55.2%	7.270%
2/17/2026	Russell Investments Group Ltd.	13,577	$392K	0.0%	+97.7%	0.020%
2/17/2026	State of Wisconsin Investment Board	16,721	$478K	0.0%	-22.2%	0.025%
2/17/2026	Captrust Financial Advisors	37,861	$1.08M	0.0%	+88.9%	0.056%
2/17/2026	Royal Bank of Canada	7,220	$206K	0.0%	-79.3%	0.011%
2/17/2026	Rice Hall James & Associates LLC	833,791	$23.81M	1.3%	+222.0%	1.227%
2/16/2026	Verition Fund Management LLC	23,300	$665K	0.0%	-66.6%	0.034%
2/16/2026	Barclays PLC	111,027	$3.17M	0.0%	+4.7%	0.163%
2/13/2026	Maverick Capital Ltd.	59,783	$1.71M	0.0%	-12.5%	0.088%
2/13/2026	The Manufacturers Life Insurance Company	28,928	$826K	0.0%	-8.2%	0.043%
2/13/2026	Segall Bryant & Hamill LLC	1,194,861	$34.13M	0.5%	-2.8%	1.759%
2/13/2026	Stanley Capital Management LLC	402,000	$11.48M	1.9%	+6.6%	0.592%
2/13/2026	Rubric Capital Management LP	3,777,157	$107.88M	1.3%	-18.6%	5.560%
2/13/2026	Public Sector Pension Investment Board	235,377	$6.72M	0.0%	-11.1%	0.346%
2/13/2026	First Trust Advisors LP	29,005	$828K	0.0%	+10.3%	0.043%
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2/13/2026	Charles Schwab Investment Management Inc.	848,178	$24.22M	0.0%	-7.9%	1.249%
2/13/2026	State Street Corp	2,704,355	$77.24M	0.0%	+1.3%	3.981%
2/13/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	186,119	$5.32M	0.0%	+1.0%	0.274%
2/13/2026	Wells Fargo & Company MN	75,449	$2.16M	0.0%	+53.3%	0.111%
2/13/2026	Gagnon Securities LLC	159,177	$4.55M	0.9%	+29.9%	0.234%
2/12/2026	Orion Porfolio Solutions LLC	20,200	$577K	0.0%	-19.1%	0.030%
2/12/2026	MetLife Investment Management LLC	702,169	$20.05M	0.1%	+31.3%	1.034%
2/12/2026	Paradigm Capital Management Inc. NY	828,890	$23.67M	1.0%	-11.8%	1.220%
2/12/2026	Dimensional Fund Advisors LP	2,836,287	$81.01M	0.0%	-0.8%	4.175%
2/12/2026	Ensign Peak Advisors Inc	4,343	$124K	0.0%	-75.6%	0.006%

QDEL Institutional Ownership - Frequently Asked Questions

During the previous two years, 269 institutional investors and hedge funds held shares of QuidelOrtho. The most heavily invested institutionals were Carlyle Group Inc. ($376.66M), T. Rowe Price Investment Management Inc. ($337.93M), Vanguard Group Inc. ($216.26M), BlackRock Inc. ($196.21M), Newtyn Management LLC ($116.04M), Invesco Ltd. ($99.12M), and State Street Corp ($77.24M).Learn more on QuidelOrtho's institutional investors.

99.00% of QuidelOrtho's stock is owned by institutional investors. Learn more on QDEL's institutional investor holdings.

Of the 233 institutional investors that purchased QuidelOrtho's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($11.20M), Paradigm Capital Management Inc. NY ($3.97M), Invesco Ltd. ($3.72M), Newtyn Management LLC ($3.06M), T. Rowe Price Investment Management Inc. ($2.87M), AQR Capital Management LLC ($2.39M), and Rice Hall James & Associates LLC ($2.09M).

Institutional investors have bought a total of 32,026,257 shares in the last 24 months. This purchase volume represents approximately $667.09M in transactions.

Of the 82 institutional investors that sold QuidelOrtho's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($6.07M), JPMorgan Chase & Co. ($1.49M), Rubric Capital Management LP ($1.33M), Assenagon Asset Management S.A. ($905.22K), ArrowMark Colorado Holdings LLC ($541.77K), Gotham Asset Management LLC ($317.06K), and Barclays PLC ($230.06K).

Institutional investors have sold a total of 13,285,586 shares in the last 24 months. This volume of shares sold represents approximately $372.24M in transactions.

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Institutional ownership data for NASDAQ:QDEL is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/24/2026. New 13F filings are added each quarter as they're published.

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QuidelOrtho (QDEL) Institutional Ownership

QDEL Institutional Buying and Selling by Quarter

QuidelOrtho Major Shareholders & Ownership History

QDEL Institutional Ownership - Frequently Asked Questions

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QuidelOrtho (QDEL) Institutional Ownership

Institutional Ownership Changes (13F Filings) for QuidelOrtho (NASDAQ:QDEL)

QDEL Institutional Buying and Selling by Quarter

QuidelOrtho Major Shareholders & Ownership History

QDEL Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of QDEL shares?

What percentage of QuidelOrtho's stock is owned by institutional investors?

Which institutional investors have been buying QuidelOrtho's stock?

How much institutional buying is happening at QuidelOrtho?

Which of QuidelOrtho's major shareholders have been selling company stock?

How much institutional selling is happening at QuidelOrtho?

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