GeneDx Holdings

WGS • NASDAQ

GeneDx Holdings is a medical - healthcare information services company in the healthcare sector on NASDAQ, led by Katherine Stueland, with a market cap of $4.7B. As of Q3 2025, 105% of shares are held by 261 institutional investors, with Corvex Management LP as the largest holder at 10.65%.

Chief Executive OfficerKatherine Stueland

Market Cap$4.7B

Medical - Healthcare Information Services

Healthcare

Employees1.0K

Websitegenedx.com

Country

United States of America

Overview

Overview of institutional ownership in WGS as of Q3 2025 with a market cap of $3.1B

All Institutions

Institutions: 261
Value Held: $3.2B
Shares Held: 30.0M
Avg Position: $12.4M
Median Position: $1.4M

Hedge Funds

Hedge Funds: 40
Value Held: $1.1B
Shares Held: 10.0M
Avg Position: $26.8M
Median Position: $4.2M

Ownership Breakdown

Institutional (non-HF)

69.94%

$2.2B

Hedge Funds

34.64%

$1.1B

Retail & Other

Based on market cap of $3.1B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in WGS as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
Corvex Management LP Hedge Fund•Event Driven	Keith Arlyn Meister Managing Partner	$329.5M 11.80% of portfolio	10.65% 3.1M shares	Q4 2022 Held for 2y 11m	$2.8B
Casdin Capital, LLC Hedge Fund•Sector	Eli D Casdin Managing Partner	$324.0M 28.05% of portfolio	10.47% 3.0M shares	Q4 2022 Held for 2y 11m	$1.2B
B BlackRock, Inc. Institution	-	$164.7M 0.00% of portfolio	5.32% 1.5M shares	Q4 2022 Held for 2y 11m	$5.67T
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	Brent Walker Gledhill CEO	$131.5M 0.34% of portfolio	4.25% 1.2M shares	Q4 2024 Held for 11 months	$38.7B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$126.1M 0.00% of portfolio	4.07% 1.2M shares	Q4 2022 Held for 2y 11m	$6.69T
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$125.9M 0.02% of portfolio	4.07% 1.2M shares	Q2 2022 Held for 3y 5m	$691.34B
O ORACLE INVESTMENT MANAGEMENT INC Institution	-	$95.9M 67.24% of portfolio	3.10% 890.0K shares	Q4 2022 Held for 2y 11m	$142.6M
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	Peter Y Chung CEO	$88.7M 2.82% of portfolio	2.87% 823.6K shares	Q3 2024 Held for 1y 2m	$3.2B
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$77.4M 0.05% of portfolio	2.50% 718.0K shares	Q1 2025 Held for 8 months	$161.58B
FRANKLIN RESOURCES INC Institution	Gregory E. Johnson CEO	$73.4M 0.02% of portfolio	2.37% 681.4K shares	Q3 2024 Held for 1y 2m	$395.56B

Net Capital Flow

Institutional buying and selling activity for WGS in Q3 2025

Net Flow: −$298.3M
Buyers: 101
Sellers: 111
Total Bought: +$312.6M
Total Sold: −$610.8M
Avg Position: $12.7M

Biggest Buyers

Institution	Net Bought	Current Position
FRANKLIN RESOURCES INC Institution	+$37.1M +344.0K shares	$73.4M 681.4K shares
FMR LLC Institution	+$36.6M +340.0K shares	$54.2M 503.3K shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	+$34.1M +316.4K shares	$35.7M 331.4K shares
JENNISON ASSOCIATES LLC Long Only Manager	+$21.6M +200.5K shares	$64.5M 598.4K shares
T Telemark Asset Management, LLC Hedge Fund•Long/Short	+$12.9M +120.0K shares	$12.9M 120.0K shares
GOLDMAN SACHS GROUP INC Institution	+$12.8M +118.7K shares	$125.9M 1.2M shares
DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven	+$11.5M +106.6K shares	$44.2M 410.0K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$10.7M +99.6K shares	$13.4M 124.5K shares
Bank of New York Mellon Corp Institution	+$10.4M +96.4K shares	$17.5M 162.7K shares
B BlackRock, Inc. Institution	+$10.2M +94.4K shares	$164.7M 1.5M shares

Biggest Sellers

Institution	Net Sold	Current Position
UBS Group AG Institution	−$91.8M −851.9K shares	$16.1M 149.8K shares
Pentwater Capital Management LP Hedge Fund•Event Driven	−$85.7M −795.0K shares	$45.8M 425.0K shares
Casdin Capital, LLC Hedge Fund•Sector	−$53.9M −500.0K shares	$324.0M 3.0M shares
F FRED ALGER MANAGEMENT INC Long Only Manager	−$49.9M −463.2K shares	$38.5M 357.3K shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	−$44.3M −411.3K shares	$131.5M 1.2M shares
FARALLON CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$34.7M −321.7K shares	$538.7K 5.0K shares
T T. Rowe Price Investment Management, Inc. Insurance Manager	−$34.4M −319.1K shares	$77.4M 718.0K shares
Schonfeld Strategic Advisors LLC Hedge Fund•Multi-Strategy	−$17.2M −159.4K shares	$1.4M 13.0K shares
Parkman Healthcare Partners LLC Hedge Fund•Long/Short	−$14.0M −129.8K shares	$4.9M 45.3K shares
Portolan Capital Management, LLC Hedge Fund•Long/Short	−$12.7M −118.2K shares	$4.7M 44.0K shares

Entry and Exit Activity

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

New Positions: 44
New Value: $145.0M
Exited Positions: 29
Exited Value: $59.5M

New Positions

Institution	Position Value
ARK Investment Management LLC ETF Provider	$48.2M 447.0K shares
S Sumitomo Mitsui Trust Holdings, Inc. Institution	$31.5M 292.3K shares
Nikko Asset Management Americas, Inc. Long Only Manager	$31.4M 292.3K shares
C Capital International Investors Institution	$10.8M 100.3K shares
I Impax Asset Management Group plc Long Only Manager	$5.4M 50.0K shares
Vestmark Advisory Solutions, Inc. Fund of Funds	$1.9M 17.3K shares
ZACKS INVESTMENT MANAGEMENT RIA/Wealth	$1.8M 16.3K shares
Main Management ETF Advisors, LLC Institution	$1.7M 15.5K shares
Q Quantitative Investment Management, LLC Hedge Fund•Quant Macro	$1.6M 15.1K shares
D Davy Asset Management Ltd Institution	$1.6M 14.9K shares

Exited Positions

Institution	Previous Position
S Standard Life Aberdeen plc Institution	$12.6M 136.7K shares
Polar Securities Inc. Hedge Fund•Multi-Strategy	$9.0M 97.6K shares
A AXA Institution	$8.1M 88.3K shares
O OPTIONS SOLUTIONS, LLC Hedge Fund•Sector	$6.4M 69.9K shares
Catalio Capital Management, LP Venture Capital	$5.7M 61.5K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$4.9M 52.5K shares
Soleus Capital Management, L.P. Hedge Fund•Long/Short	$3.7M 40.0K shares
T Tri Locum Partners LP Hedge Fund•Long/Short	$3.0M 32.9K shares
MML INVESTORS SERVICES, LLC RIA/Wealth	$1.4M 14.7K shares
D D. E. Shaw & Co., Inc. Institution	$845.1K 9.2K shares

Options Activity

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

Call Positions: 14
Call Value: $106.7M
Put Positions: 15
Put Value: $149.7M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$38.7M 3.6K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$14.5M 1.3K contracts
J JANE STREET GROUP, LLC Institution	$14.4M 1.3K contracts
Walleye Trading LLC RIA/Wealth	$10.1M 938.0 contracts
Caption Management, LLC Hedge Fund•Long/Short	$8.6M 795.0 contracts
W WOLVERINE TRADING, LLC Institution	$7.5M 661.0 contracts
D D. E. Shaw & Co., Inc. Institution	$3.6M 332.0 contracts
C Cubist Systematic Strategies, LLC Institution	$2.7M 246.0 contracts
Pentwater Capital Management LP Hedge Fund•Event Driven	$2.2M 200.0 contracts
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$1.9M 175.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$52.0M 4.8K contracts
Pentwater Capital Management LP Hedge Fund•Event Driven	$36.6M 3.4K contracts
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	$26.4M 2.5K contracts
J JANE STREET GROUP, LLC Institution	$13.1M 1.2K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$7.7M 715.0 contracts
Walleye Trading LLC RIA/Wealth	$4.5M 416.0 contracts
W WOLVERINE TRADING, LLC Institution	$4.2M 371.0 contracts
C Cubist Systematic Strategies, LLC Institution	$1.8M 166.0 contracts
AMERIPRISE FINANCIAL INC Institution	$991.2K 92.0 contracts
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$851.1K 79.0 contracts

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
O ORACLE INVESTMENT MANAGEMENT INC Institution	-	67.24% $95.9M	3.10% 890.0K shares	Q4 2022 Held for 2y 11m	$142.6M
Casdin Capital, LLC Hedge Fund•Sector	Eli D Casdin Managing Partner	28.05% $324.0M	10.47% 3.0M shares	Q4 2022 Held for 2y 11m	$1.2B
A Alamea Verwaltungs GmbH Institution	-	14.43% $21.1M	0.68% 196.0K shares	Q1 2025 Held for 8 months	$146.4M
Corvex Management LP Hedge Fund•Event Driven	Keith Arlyn Meister Managing Partner	11.80% $329.5M	10.65% 3.1M shares	Q4 2022 Held for 2y 11m	$2.8B
G Gagnon Advisors, LLC Hedge Fund•Long/Short	Neil Joseph Gagnon CEO	8.45% $13.7M	0.44% 127.1K shares	Q4 2022 Held for 2y 11m	$162.0M
Science & Technology Partners, L.P. Hedge Fund•Long/Short	Erika Leigh Klauer CEO	6.85% $24.1M	0.78% 224.1K shares	Q4 2024 Held for 11 months	$352.2M
GAGNON SECURITIES LLC RIA/Wealth	Neil Joseph Gagnon CEO	5.87% $29.0M	0.94% 269.1K shares	Q4 2022 Held for 2y 11m	$493.8M
Z Zweig-DiMenna Associates LLC Hedge Fund•Long/Short	Kevin P Cannon CEO	5.08% $64.9M	2.10% 602.3K shares	Q4 2024 Held for 11 months	$1.3B
Palisades Investment Partners, LLC RIA/Wealth	Quinn R. Stills Managing Partner	3.59% $9.1M	0.30% 84.7K shares	Q4 2024 Held for 11 months	$254.6M
L Legal Advantage Investments, Inc. RIA/Wealth	David Mark Spector President	2.94% $6.5M	0.21% 60.7K shares	Q2 2024 Held for 1y 5m	$222.1M

Hedge Fund Spotlight

Discover hedge funds investing in WGS

Divisadero Street Capital Management, LP

Hedge Fund • Long/Short

Portfolio ManagerWilliam Zolezzi

Portfolio Value: $2.1B
Positions: 163
Last Reported: Q3 2025

Sector Allocation

Position in GeneDx Holdings

Market Value: $7.9M
Shares Held: 73.1K
Portfolio Weight: 0.37%
Owned Since: 2024-Q2

Top Holding	Sector	Market Value	Weight
1 Dave, Inc. DAVE	Software - Application Technology	$184.5M	8.63%
2 Super Group Limited SGHC	Gambling, Resorts & Casinos Consumer Cyclical	$129.8M	6.07%
3 Sezzle SEZL	Financial - Credit Services Financial Services	$118.9M	5.56%