ProPhase Labs, Inc.
PRPH • NASDAQ
ProPhase Labs, Inc. is a drug manufacturers - specialty & generic company in the healthcare sector on NASDAQ, led by Ted Karkus, with a market cap of $5.3M. As of Q3 2025, 7% of shares are held by 29 institutional investors, with SYKON CAPITAL LLC as the largest holder at 1.55%.
Chairman of the Board, Chief Executive Officer and DirectorTed Karkus
Market Cap$5.3M
Drug Manufacturers - Specialty & Generic
Healthcare
Employees113.0
Websiteprophaselabs.com
Country
United States of America
Overview
Overview of institutional ownership in PRPH as of Q3 2025 with a market cap of $19.0M
All Institutions
- Institutions
- 29
- Value Held
- $1.4M
- Shares Held
- 3.0M
- Avg Position
- $47.1K
- Median Position
- $10.6K
Hedge Funds
- Hedge Funds
- 1
- Value Held
- $4.6K
- Shares Held
- 10.1K
- Avg Position
- $4.6K
- Median Position
- $4.6K
Ownership Breakdown
Based on market cap of $19.0M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in PRPH as of Q3 2025
| Institution | Position Value |
|---|---|
 SYKON CAPITAL LLC RIA/Wealth | $295.2K 0.10% of portfolio |
 VANGUARD GROUP INC Institution | $243.6K 0.00% of portfolio |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $182.2K 0.00% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $138.7K 0.00% of portfolio |
 Accretive Wealth Partners, LLC RIA/Wealth | $114.5K 0.04% of portfolio |
 HighTower Advisors, LLC RIA/Wealth | $108.7K 0.00% of portfolio |
 Apollon Wealth Management, LLC RIA/Wealth | $83.5K 0.00% of portfolio |
C CHAPIN DAVIS, INC. Institution | $36.6K 0.01% of portfolio |
T TWO SIGMA SECURITIES, LLC Institution | $21.7K 0.00% of portfolio |
 STATE STREET CORP Institution | $20.4K 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for PRPH in Q3 2025
- Traded
- +$243.1K
- Buyers
- 15
- Sellers
- 11
- Total Bought
- +$454.9K
- Total Sold
- −$211.8K
- Avg Position
- $35.0K
Biggest Buyers
| Institution | Net Bought |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | +$135.5K +295.9K shares |
Accretive Wealth Partners, LLC RIA/Wealth | +$114.5K +250.0K shares |
Apollon Wealth Management, LLC RIA/Wealth | +$83.5K +182.5K shares |
VANGUARD GROUP INC Institution | +$56.6K +123.7K shares |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$20.1K +43.9K shares |
S SIMPLEX TRADING, LLC Institution | +$13.3K +29.0K shares |
A Annex Advisory Services, LLC Institution | +$6.9K +15.0K shares |
+$6.8K +14.8K shares | |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$4.6K +-127.8K shares |
N Nordwand Advisors, LLC RIA/Wealth | +$4.6K +10.0K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 Quinn Opportunity Partners LLC Hedge Fund•Event Driven | −$85.4K −218.1K shares |
X XTX Topco Ltd Institution | −$33.8K −73.7K shares |
 CITIGROUP INC Institution | −$23.3K −59.5K shares |
 UBS Group AG Institution | −$17.4K −37.9K shares |
V Virtu Financial LLC Institution | −$15.8K −40.4K shares |
U United Capital Management of KS, Inc. Institution | −$13.6K −34.7K shares |
 HPM Partners LLC RIA/Wealth | −$7.4K −19.0K shares |
 PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager | −$6.6K −16.9K shares |
C Cubist Systematic Strategies, LLC Institution | −$4.6K −11.8K shares |
 PRINCIPAL SECURITIES, INC. RIA/Wealth | −$3.9K −10.0K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited PRPH in Q3 2025
- New Positions
- 4
- New Value
- $204.9K
- Exited Positions
- 10
- Exited Value
- $160.6K
New Positions
| Institution | Position Value |
|---|---|
Accretive Wealth Partners, LLC RIA/Wealth | $114.5K 250.0K shares |
Apollon Wealth Management, LLC RIA/Wealth | $83.5K 182.5K shares |
A Annex Advisory Services, LLC Institution | $6.9K 15.0K shares |
 Key FInancial Inc RIA/Wealth | $1.0 1.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
Quinn Opportunity Partners LLC Hedge Fund•Event Driven | $85.4K 218.1K shares |
CITIGROUP INC Institution | $23.3K 59.5K shares |
V Virtu Financial LLC Institution | $15.8K 40.4K shares |
U United Capital Management of KS, Inc. Institution | $13.6K 34.7K shares |
HPM Partners LLC RIA/Wealth | $7.4K 19.0K shares |
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager | $6.6K 16.9K shares |
C Cubist Systematic Strategies, LLC Institution | $4.6K 11.8K shares |
PRINCIPAL SECURITIES, INC. RIA/Wealth | $3.9K 10.0K shares |
 RAYMOND JAMES FINANCIAL INC RIA/Wealth | $77.0 198.0 shares |
 BARCLAYS PLC Institution | - 100.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in PRPH as of Q3 2025
- Call Positions
- 2
- Call Value
- $6.3K
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
J JANE STREET GROUP, LLC Institution | $6.3K 137.0 contracts |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with PRPH as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
SYKON CAPITAL LLC RIA/Wealth | 0.10% $295.2K |
Accretive Wealth Partners, LLC RIA/Wealth | 0.04% $114.5K |
C CHAPIN DAVIS, INC. Institution | 0.01% $36.6K |
T TWO SIGMA SECURITIES, LLC Institution | 0.00% $21.7K |
Apollon Wealth Management, LLC RIA/Wealth | 0.00% $83.5K |
N Nordwand Advisors, LLC RIA/Wealth | 0.00% $4.6K |
X XTX Topco Ltd Institution | 0.00% $13.2K |
S SIMPLEX TRADING, LLC Institution | 0.00% $18.6K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | 0.00% $182.2K |
 BKD Wealth Advisors, LLC RIA/Wealth | 0.00% $9.0K |
Hedge Fund Spotlight
Discover hedge funds investing in PRPH
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 ProPhase Labs, Inc.
- Market Value
- $4.6K
- Shares Held
- 10.1K
- Portfolio Weight
- 0.00%
- Owned Since
- 2013-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% |
