Select Medical Holdings

SEM • NYSE

Select Medical Holdings is a medical - care facilities company in the healthcare sector on NYSE, led by David S. Chernow, with a market cap of $1.9B. As of Q3 2025, 81% of shares are held by 262 institutional investors, with BlackRock, Inc. as the largest holder at 15.44%.

Chief Executive OfficerDavid S. Chernow

Market Cap$1.9B

Medical - Care Facilities

Healthcare

Employees54.6K

Websiteselectmedicalholdings.com

Country

United States of America

Overview

Overview of institutional ownership in SEM as of Q3 2025 with a market cap of $1.6B

All Institutions

Institutions: 262
Value Held: $1.3B
Shares Held: 100.6M
Avg Position: $4.9M
Median Position: $366.4K

Hedge Funds

Hedge Funds: 38
Value Held: $94.0M
Shares Held: 7.3M
Avg Position: $2.5M
Median Position: $943.0K

Ownership Breakdown

Institutional (non-HF)

75.27%

$1.2B

Hedge Funds

5.91%

$94.0M

Retail & Other

18.83%

$299.7M

Based on market cap of $1.6B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in SEM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$245.8M 0.00% of portfolio	15.44% 19.1M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	Robert W Sharps President	$204.4M 0.02% of portfolio	12.84% 15.9M shares	≤ Q2 2013 Held for 12y 5m+	$912.31B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$161.4M 0.00% of portfolio	10.14% 12.6M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$66.7M 0.01% of portfolio	4.19% 5.2M shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$56.3M 0.00% of portfolio	3.54% 4.4M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$40.0M 0.00% of portfolio	2.51% 3.1M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$36.7M 0.02% of portfolio	2.31% 2.9M shares	Q3 2022 Held for 3y 2m	$161.58B
PRINCIPAL FINANCIAL GROUP INC Institution	Deanna Strable CEO	$31.3M 0.02% of portfolio	1.96% 2.4M shares	≤ Q2 2013 Held for 12y 5m+	$197.71B
D D. E. Shaw & Co., Inc. Institution	-	$23.9M 0.02% of portfolio	1.50% 1.9M shares	Q1 2017 Held for 8y 8m	$115.81B
BANK OF AMERICA CORP /DE/ Institution	Brian T. Moynihan CEO	$21.5M 0.00% of portfolio	1.35% 1.7M shares	≤ Q2 2013 Held for 12y 5m+	$1.33T

Net Capital Flow

Institutional buying and selling activity for SEM in Q3 2025

Traded: −$6.6M
Buyers: 134
Sellers: 128
Total Bought: +$127.1M
Total Sold: −$133.6M
Avg Position: $4.3M

Biggest Buyers

Institution	Net Bought	Current Position
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$16.4M +1.3M shares	$20.4M 1.6M shares
D D. E. Shaw & Co., Inc. Institution	+$14.3M +1.1M shares	$23.9M 1.9M shares
Western Standard, LLC Hedge Fund•Long/Short	+$13.6M +1.1M shares	$13.6M 1.1M shares
Q Qube Research & Technologies Ltd Institution	+$7.4M +576.4K shares	$7.4M 576.4K shares
Woodline Partners LP Hedge Fund•Long/Short	+$7.2M +557.6K shares	$7.2M 557.6K shares
Prosight Management, LP Hedge Fund•Long/Short	+$6.7M +521.1K shares	$11.2M 874.9K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	+$5.2M +405.2K shares	$5.2M 405.2K shares
GOLDMAN SACHS GROUP INC Institution	+$3.6M +280.7K shares	$9.7M 759.2K shares
W Winton Capital Group Ltd Institution	+$3.6M +276.9K shares	$3.6M 276.9K shares
DIMENSIONAL FUND ADVISORS LP Long Only Manager	+$2.7M +208.0K shares	$66.7M 5.2M shares

Biggest Sellers

Institution	Net Sold	Current Position
8 8 KNOTS MANAGEMENT, LLC Hedge Fund•Long/Short	−$26.6M −1.8M shares	Sold Off 0 shares
T T. Rowe Price Investment Management, Inc. Insurance Manager	−$9.5M −741.7K shares	$36.7M 2.9M shares
LOOMIS SAYLES & CO L P Long Only Manager	−$8.6M −568.0K shares	Sold Off 0 shares
F First Eagle Investment Management, LLC Long Only Manager	−$6.5M −428.9K shares	Sold Off 0 shares
PRINCIPAL FINANCIAL GROUP INC Institution	−$6.3M −489.8K shares	$31.3M 2.4M shares
B BNP PARIBAS ARBITRAGE, SA Institution	−$4.8M −372.6K shares	$1.9M 146.2K shares
B BlackRock, Inc. Institution	−$4.8M −370.3K shares	$245.8M 19.1M shares
VANGUARD GROUP INC Institution	−$4.6M −354.8K shares	$161.4M 12.6M shares
L LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA RIA/Wealth	−$3.6M −250.0K shares	$365.6K 25.6K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	−$3.5M −233.7K shares	Sold Off 0 shares

Entry and Exit Activity

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

New Positions: 17
New Value: $1.2M
Exited Positions: 39
Exited Value: $64.0M

New Positions

Institution	Position Value
Bridgewater Associates, LP Hedge Fund•Global Macro	$528.4K 41.2K shares
Optimize Financial Inc RIA/Wealth	$416.4K 32.4K shares
Humankind Investments LLC ETF Provider	$160.3K 12.5K shares
ISAM Funds Ltd Hedge Fund•Quant	$96.0K 7.5K shares
Point72 Europe LLP Digital Asset Manager	$21.9K 1.7K shares
S Salomon & Ludwin, LLC Institution	$13.0K 1.0K shares
O Optiver Holding B.V. Institution	$4.2K 328.0 shares
Sunbelt Securities, Inc. RIA/Wealth	$1.8K 137.0 shares
R Root Financial Partners, LLC RIA/Wealth	$1.2K 91.0 shares
Guerra Advisors Inc RIA/Wealth	$642.0 50.0 shares

Exited Positions

Institution	Previous Position
8 8 KNOTS MANAGEMENT, LLC Hedge Fund•Long/Short	$26.6M 1.8M shares
LOOMIS SAYLES & CO L P Long Only Manager	$8.6M 568.0K shares
F First Eagle Investment Management, LLC Long Only Manager	$6.5M 428.9K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$3.5M 233.7K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$3.0M 197.7K shares
C Cubist Systematic Strategies, LLC Institution	$2.8M 187.2K shares
Marshall Wace LLP Institution	$2.0M 134.8K shares
S State of New Jersey Common Pension Fund D Institution	$2.0M 130.0K shares
P Persistent Asset Partners Ltd Institution	$1.4M 93.6K shares
Weiss Asset Management LP Hedge Fund•Multi-Strategy	$973.2K 64.1K shares

Options Activity

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

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Western Standard, LLC Hedge Fund•Long/Short	Eric David Andersen Managing Partner	7.25% $13.6M	0.85% 1.1M shares	Q3 2025 Held for 2 months	$187.0M
Prosight Management, LP Hedge Fund•Long/Short	William Lawrence Hawkins Managing Partner	2.98% $11.2M	0.71% 874.9K shares	Q2 2025 Held for 5 months	$376.7M
Sivik Global Healthcare LLC Hedge Fund•Long/Short	Krishen Kumar Sud Managing Partner	1.22% $2.2M	0.14% 175.0K shares	Q2 2021 Held for 4y 5m	$184.7M
Hood River Capital Management LLC Long Only Manager	Brian Paul Smoluch Managing Partner	0.23% $19.5M	1.23% 1.5M shares	Q4 2022 Held for 2y 11m	$8.5B
Optimize Financial Inc RIA/Wealth	Casey Elizabeth Witters CEO	0.22% $416.4K	0.03% 32.4K shares	Q3 2025 Held for 2 months	$192.0M
O OXFORD ASSET MANAGEMENT Institution	Henry Stuart Gibson President	0.21% $573.6K	0.04% 44.7K shares	Q1 2025 Held for 8 months	$272.4M
Dana Investment Advisors, Inc. Long Only Manager	Mark Richard Mirsberger CEO	0.20% $6.7M	0.42% 524.6K shares	Q1 2024 Held for 1y 8m	$3.3B
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager	John Noland Ryan Montgomery CEO	0.20% $9.5M	0.59% 736.3K shares	Q4 2024 Held for 11 months	$4.7B
Brucke Financial, Inc. RIA/Wealth	Andrew James Hawickhorst President	0.15% $250.6K	0.01% 18.1K shares	Q4 2024 Held for 11 months	$170.5M
W Winton Capital Group Ltd Institution	-	0.13% $3.6M	0.22% 276.9K shares	Q3 2025 Held for 2 months	$2.7B

Hedge Fund Spotlight

Discover hedge funds investing in SEM

Prosight Management, LP

Hedge Fund • Long/Short

Portfolio ManagerWilliam Lawrence Hawkins

Portfolio Value: $376.7M
Positions: 40
Last Reported: Q3 2025

Sector Allocation

Position in Select Medical Holdings

Market Value: $11.2M
Shares Held: 874.9K
Portfolio Weight: 2.98%
Owned Since: 2025-Q2

Top Holding	Sector	Market Value	Weight
1 MeiraGTx Holdings plc MGTX	Biotechnology Healthcare	$33.7M	8.94%
2 ADC Therapeutics ADCT	Biotechnology Healthcare	$29.9M	7.94%
3 Kura Oncology KURA	Biotechnology Healthcare	$24.4M	6.48%