Star Equity Holdings, Inc.
STRR • NASDAQ
Star Equity Holdings, Inc. is a medical - diagnostics & research company in the healthcare sector on NASDAQ, led by Richard K. Coleman, Jr., with a market cap of $37.0M. As of Q3 2025, 29% of shares are held by 23 institutional investors, with Mink Brook Asset Management LLC as the largest holder at 8.99%.
Chief Executive OfficerRichard K. Coleman, Jr.
Market Cap$37.0M
Medical - Diagnostics & Research
Healthcare
Employees171.0
Websitestarequity.com
Country
United States of America
Overview
Overview of institutional ownership in STRR as of Q3 2025 with a market cap of $38.9M
All Institutions
- Institutions
- 23
- Value Held
- $11.2M
- Shares Held
- 1.0M
- Avg Position
- $485.6K
- Median Position
- $132.6K
Hedge Funds
- Hedge Funds
- 2
- Value Held
- $1.4M
- Shares Held
- 127.6K
- Avg Position
- $709.6K
- Median Position
- $709.6K
Ownership Breakdown
Based on market cap of $38.9M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in STRR as of Q3 2025
| Institution | Position Value |
|---|---|
M Mink Brook Asset Management LLC Institution | $3.5M 2.41% of portfolio |
 VANGUARD GROUP INC Institution | $1.7M 0.00% of portfolio |
H HEARTLAND ADVISORS INC Long Only Manager | $1.2M 0.06% of portfolio |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $945.5K 0.00% of portfolio |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | $760.4K 0.00% of portfolio |
 PERRITT CAPITAL MANAGEMENT INC Long Only Manager | $737.3K 0.35% of portfolio |
B BlackRock, Inc. Institution | $593.9K 0.00% of portfolio |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | $473.7K 0.17% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $344.8K 0.00% of portfolio |
R RBF Capital, LLC Institution | $312.6K 0.01% of portfolio |
Net Capital Flow
Institutional buying and selling activity for STRR in Q3 2025
- Traded
- +$10.4M
- Buyers
- 20
- Sellers
- 6
- Total Bought
- +$10.5M
- Total Sold
- −$115.6K
- Avg Position
- $429.6K
Biggest Buyers
| Institution | Net Bought |
|---|---|
M Mink Brook Asset Management LLC Institution | +$3.5M +314.5K shares |
VANGUARD GROUP INC Institution | +$1.4M +130.4K shares |
H HEARTLAND ADVISORS INC Long Only Manager | +$1.2M +107.7K shares |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$822.5K +74.0K shares |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | +$760.4K +68.4K shares |
PERRITT CAPITAL MANAGEMENT INC Long Only Manager | +$737.3K +66.3K shares |
B BlackRock, Inc. Institution | +$592.3K +53.3K shares |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | +$473.7K +42.6K shares |
R RBF Capital, LLC Institution | +$312.6K +28.1K shares |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$160.4K +14.4K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | −$46.9K −23.6K shares |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | −$30.0K −15.1K shares |
S SBI Securities Co., Ltd. Institution | −$19.9K −1.8K shares |
T Tower Research Capital LLC Institution | −$13.4K −1.2K shares |
A Advisor Group Holdings, Inc. Institution | −$5.4K −480.0 shares |
 PNC FINANCIAL SERVICES GROUP, INC. Institution | −$8.0 −4.0 shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited STRR in Q3 2025
- New Positions
- 7
- New Value
- $4.6M
- Exited Positions
- 3
- Exited Value
- $76.9K
New Positions
| Institution | Position Value |
|---|---|
M Mink Brook Asset Management LLC Institution | $3.5M 314.5K shares |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | $473.7K 42.6K shares |
R RBF Capital, LLC Institution | $312.6K 28.1K shares |
 HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager | $132.6K 11.9K shares |
 Hollow Brook Wealth Management LLC RIA/Wealth | $123.3K 11.1K shares |
 GREEN SQUARE CAPITAL MANAGEMENT LLC RIA/Wealth | $92.9K 10.9K shares |
 WHITTIER TRUST CO OF NEVADA INC RIA/Wealth | $12.0 1.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $46.9K 23.6K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $30.0K 15.1K shares |
PNC FINANCIAL SERVICES GROUP, INC. Institution | $8.0 4.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in STRR 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 STRR as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
M Mink Brook Asset Management LLC Institution | 2.41% $3.5M |
PERRITT CAPITAL MANAGEMENT INC Long Only Manager | 0.35% $737.3K |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | 0.17% $473.7K |
H HEARTLAND ADVISORS INC Long Only Manager | 0.06% $1.2M |
Hollow Brook Wealth Management LLC RIA/Wealth | 0.03% $123.3K |
R RBF Capital, LLC Institution | 0.01% $312.6K |
GREEN SQUARE CAPITAL MANAGEMENT LLC RIA/Wealth | 0.01% $92.9K |
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager | 0.01% $272.6K |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | 0.00% $945.5K |
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager | 0.00% $132.6K |
Hedge Fund Spotlight
Discover hedge funds investing in STRR
RENAISSANCE TECHNOLOGIES LLC
Hedge Fund • Quant
Portfolio ManagerPeter Fitzhugh Brown
- Portfolio Value
- $75.8B
- Positions
- 3,419
- Last Reported
- Q3 2025
Sector Allocation
Position in Star Equity Holdings, Inc.
- Market Value
- $945.5K
- Shares Held
- 85.0K
- Portfolio Weight
- 0.00%
- Owned Since
- 2023-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $1.6B | 2.06% | |
Semiconductors Technology | $1.1B | 1.39% | |
Electronic Gaming & Multimedia Technology | $953.5M | 1.26% |
