QuidelOrtho Corporation

QDEL • NASDAQ

QuidelOrtho Corporation is a medical - instruments & supplies company in the healthcare sector on NASDAQ, led by Brian J. Blaser, with a market cap of $2.0B. As of Q3 2025, 121% of shares are held by 248 institutional investors, with T. Rowe Price Investment Management, Inc. as the largest holder at 16.22%.

President and Chief Executive OfficerBrian J. Blaser

Market Cap$2.0B

Medical - Instruments & Supplies

Healthcare

Employees7.1K

Websitequidelortho.com

Country

United States of America

Overview

Overview of institutional ownership in QDEL as of Q3 2025 with a market cap of $2.0B

All Institutions

Institutions: 248
Value Held: $2.4B
Shares Held: 81.9M
Avg Position: $9.7M
Median Position: $549.1K

Hedge Funds

Hedge Funds: 24
Value Held: $350.4M
Shares Held: 11.9M
Avg Position: $14.6M
Median Position: $4.9M

Ownership Breakdown

Institutional (non-HF)

103.0%

$2.1B

Hedge Funds

17.52%

$350.4M

Retail & Other

Based on market cap of $2.0B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in QDEL as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$324.3M 0.20% of portfolio	16.22% 11.0M shares	Q3 2022 Held for 3y 2m	$161.58B
B BlackRock, Inc. Institution	-	$301.0M 0.01% of portfolio	15.05% 10.2M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$224.9M 0.00% of portfolio	11.25% 7.6M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
R Rubric Capital Management LP Hedge Fund•Long/Short	Margaret Kossakowski CFO	$136.6M 1.97% of portfolio	6.83% 4.6M shares	Q3 2023 Held for 2y 2m	$6.9B
FMR LLC Institution	-	$132.4M 0.01% of portfolio	6.62% 4.5M shares	Q3 2018 Held for 7y 2m	$1.92T
Invesco Ltd. ETF Provider	Brian Christopher Hartigan CEO	$85.6M 0.01% of portfolio	4.28% 2.9M shares	≤ Q2 2013 Held for 12y 5m+	$633.08B
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$84.2M 0.02% of portfolio	4.21% 2.9M shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
N Newtyn Management, LLC Hedge Fund•Event Driven	Noah Gabriel Levy Managing Partner	$79.5M 9.73% of portfolio	3.98% 2.7M shares	Q2 2024 Held for 1y 5m	$816.9M
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$78.6M 0.00% of portfolio	3.93% 2.7M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
A AMERICAN CENTURY COMPANIES INC Institution	-	$62.3M 0.03% of portfolio	3.12% 2.1M shares	Q1 2020 Held for 5y 8m	$195.93B

Net Capital Flow

Institutional buying and selling activity for QDEL in Q3 2025

Traded: +$110.4M
Buyers: 136
Sellers: 125
Total Bought: +$333.6M
Total Sold: −$223.1M
Avg Position: $8.2M

Biggest Buyers

Institution	Net Bought	Current Position
FMR LLC Institution	+$55.4M +1.9M shares	$132.4M 4.5M shares
Invesco Ltd. ETF Provider	+$39.8M +1.4M shares	$85.6M 2.9M shares
N Newtyn Management, LLC Hedge Fund•Event Driven	+$29.3M +994.3K shares	$79.5M 2.7M shares
E Estuary Capital Management LP Hedge Fund•Long/Short	+$28.6M +970.9K shares	$28.6M 970.9K shares
GOLDMAN SACHS GROUP INC Institution	+$15.2M +517.1K shares	$25.7M 872.3K shares
N Neuberger Berman Group LLC Institution	+$14.7M +499.2K shares	$23.3M 793.1K shares
MetLife Investment Advisors, LLC Insurance Manager	+$14.6M +494.4K shares	$15.8M 534.9K shares
FRONTIER CAPITAL MANAGEMENT CO LLC Long Only Manager	+$11.1M +375.7K shares	$32.8M 1.1M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$10.9M +371.2K shares	$10.9M 371.2K shares
DIMENSIONAL FUND ADVISORS LP Long Only Manager	+$10.3M +350.6K shares	$84.2M 2.9M shares

Biggest Sellers

Institution	Net Sold	Current Position
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$46.3M −1.6M shares	$7.2M 244.5K shares
D D. E. Shaw & Co., Inc. Institution	−$43.2M −1.5M shares	$15.9M 538.4K shares
JPMORGAN CHASE & CO Institution	−$22.0M −746.3K shares	$3.7M 125.5K shares
MORGAN STANLEY RIA/Wealth	−$13.3M −450.4K shares	$30.2M 1.0M shares
Gotham Asset Management, LLC Hedge Fund•Long/Short	−$9.3M −317.1K shares	$4.8M 163.4K shares
$DEUTSCHE BANK AG\ logo$ DEUTSCHE BANK AG\ Institution	−$7.9M −269.8K shares	$3.1M 104.4K shares
BARCLAYS PLC Institution	−$6.8M −230.1K shares	$3.1M 106.1K shares
A Arrowpoint Asset Management, LLC Hedge Fund•Multi-Strategy	−$5.3M −181.3K shares	$23.1M 783.0K shares
VANGUARD GROUP INC Institution	−$4.7M −160.3K shares	$224.9M 7.6M shares
IEQ CAPITAL, LLC RIA/Wealth	−$4.7M −162.4K shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited QDEL in Q3 2025

New Positions: 17
New Value: $35.3M
Exited Positions: 47
Exited Value: $34.1M

New Positions

Institution	Position Value
E Estuary Capital Management LP Hedge Fund•Long/Short	$28.6M 970.9K shares
Susquehanna Portfolio Strategies, LLC Private Equity	$5.3M 180.2K shares
P Pale Fire Capital SE Institution	$536.3K 18.2K shares
SRS Capital Advisors, Inc. RIA/Wealth	$325.7K 11.1K shares
I Ilex Capital Partners LLP Institution	$263.3K 8.9K shares
F Financiere des Professionnels - Fonds d,investissement inc. Institution	$228.0K 7.7K shares
Sontag Advisory, LLC RIA/Wealth	$14.8K 502.0 shares
HARBOR CAPITAL ADVISORS, INC. ETF Provider	$13.0K 440.0 shares
O Optiver Holding B.V. Institution	$6.0K 205.0 shares
S Stephens Consulting, LLC RIA/Wealth	$1.6K 53.0 shares

Exited Positions

Institution	Previous Position
IEQ CAPITAL, LLC RIA/Wealth	$4.7M 162.4K shares
Aquatic Capital Management LLC Hedge Fund•Quant	$3.6M 123.8K shares
C CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM Institution	$2.7M 95.4K shares
NORDEA INVESTMENT MANAGEMENT AB Institution	$2.6M 88.2K shares
A AXA Institution	$2.2M 75.7K shares
T TWINBEECH CAPITAL LP Hedge Fund•Quant	$2.1M 71.5K shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy	$1.6M 56.9K shares
D Dynamic Technology Lab Private Ltd Institution	$1.5M 50.6K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	$1.3M 45.6K shares
H HUSSMAN STRATEGIC ADVISORS, INC. Institution	$1.2M 42.0K shares

Options Activity

Institutions with the largest Call and Put options positions in QDEL as of Q3 2025

Call Positions: 10
Call Value: $9.1M
Put Positions: 8
Put Value: $5.8M

Call Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$1.7M 589.0 contracts
D D. E. Shaw & Co., Inc. Institution	$1.6M 529.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.5M 516.0 contracts
Walleye Trading LLC RIA/Wealth	$1.5M 510.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$1.0M 352.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$892.3K 303.0 contracts
C Cubist Systematic Strategies, LLC Institution	$550.7K 187.0 contracts
W WOLVERINE TRADING, LLC Institution	$320.6K 111.0 contracts
R Raiffeisen Bank International AG Institution	$7.6K 2.6 contracts
B Bayberry Capital Partners LP Hedge Fund•Long/Short	- - contracts

Put Positions

Institution	Position Value
D D. E. Shaw & Co., Inc. Institution	$2.2M 747.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$821.7K 279.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$774.5K 263.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$565.4K 192.0 contracts
C Cubist Systematic Strategies, LLC Institution	$477.1K 162.0 contracts
W WOLVERINE TRADING, LLC Institution	$378.3K 131.0 contracts
J JANE STREET GROUP, LLC Institution	$303.3K 103.0 contracts
Walleye Trading LLC RIA/Wealth	$279.8K 95.0 contracts

Most Committed Institutions

Institutions with QDEL as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
N Newtyn Management, LLC Hedge Fund•Event Driven	Noah Gabriel Levy Managing Partner	9.73% $79.5M	3.98% 2.7M shares	Q2 2024 Held for 1y 5m	$816.9M
E Estuary Capital Management LP Hedge Fund•Long/Short	Andrew H. Warford Managing Partner	5.08% $28.6M	1.43% 970.9K shares	Q3 2025 Held for 2 months	$563.2M
L Lightrock Netherlands B.V. Institution	-	3.27% $12.5M	0.73% 498.5K shares	Q4 2024 Held for 11 months	$382.4M
B BEACONLIGHT CAPITAL, LLC Institution	-	2.67% $5.9M	0.29% 199.1K shares	Q3 2024 Held for 1y 2m	$219.4M
O ORACLE INVESTMENT MANAGEMENT INC Institution	-	2.44% $3.5M	0.17% 118.3K shares	≤ Q2 2013 Held for 12y 5m+	$142.6M
Goodman Financial CORP RIA/Wealth	Steven Robert Goodman President	2.26% $11.6M	0.58% 395.0K shares	Q4 2023 Held for 1y 11m	$513.7M
R Rubric Capital Management LP Hedge Fund•Long/Short	Margaret Kossakowski CFO	1.97% $136.6M	6.83% 4.6M shares	Q3 2023 Held for 2y 2m	$6.9B
Stanley Capital Management, LLC Hedge Fund•Long/Short	Bret Wilson Stanley CCO	1.83% $11.1M	0.56% 377.0K shares	Q4 2024 Held for 11 months	$607.7M
B Bayberry Capital Partners LP Hedge Fund•Long/Short	Brian Cromwell Smith CFO	1.74% $5.4M	0.27% 182.2K shares	Q3 2024 Held for 1y 2m	$309.0M
T Tejara Capital Ltd Institution	-	1.71% $3.1M	0.16% 105.6K shares	Q1 2024 Held for 1y 8m	$182.4M

Hedge Fund Spotlight

Discover hedge funds investing in QDEL

Skylands Capital, LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerVirginia Elizabeth Shaffar

Portfolio Value: $723.8M
Positions: 153
Last Reported: Q3 2025

Sector Allocation

Position in QuidelOrtho Corporation

Market Value: $3.1M
Shares Held: 104.8K
Portfolio Weight: 0.43%
Owned Since: 2022-Q4

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