ProPhase Labs
PRPH
PRPH was delisted on the 2nd of January, 2026.
28 hedge funds and large institutions have $1.36M invested in ProPhase Labs in 2025 Q3 according to their latest regulatory filings, with 5 funds opening new positions, 6 increasing their positions, 5 reducing their positions, and 10 closing their positions.
1,700% more call options, than puts
Call options by funds: $18K | Put options by funds: $1K
30% more capital invested
Capital invested by funds: $1.05M → $1.36M (+$316K)
20% more repeat investments, than reductions
Existing positions increased: 6 | Existing positions reduced: 5
0.07% more ownership
Funds ownership: 0.64% → 0.72% (+0.07%)
15% less funds holding
Funds holding: 33 → 28 (-5)
50% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 10
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$114K |
| 2 |
AWP
Accretive Wealth Partners
Parsippany,
New Jersey
|
+$96.6K |
| 3 |
AWM
Apollon Wealth Management
Mount Pleasant,
South Carolina
|
+$70.5K |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$47.8K |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$17K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
QOP
Quinn Opportunity Partners
Charlottesville,
Virginia
|
-$85.4K |
| 2 |
Renaissance Technologies
New York
|
-$49.4K |
| 3 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$28.5K |
| 4 |
Citigroup
New York
|
-$23.3K |
| 5 |
VF
Virtu Financial
New York
|
-$16K |
PRPH Hedge Fund Activity: Q3 2025 in Review
28 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q3 2025, worth a combined $1.36M — up 30% from $1.05M a quarter earlier.
Sellers outnumbered buyers: 10 funds closed out of PRPH and 5 opened new positions — a net loss of 5 holders — while 5 trimmed existing stakes and 6 added.
The largest buyer was Susquehanna International Group, adding an estimated $114K. The largest seller was Quinn Opportunity Partners, exiting entirely with an estimated $85.4K sold.
- 28 institutional investors held ProPhase Labs (PRPH) as of Q3 2025, down from 33 in Q2 2025.
- Funds reported $1.36M of ProPhase Labs stock for Q3 2025, up 30% quarter-over-quarter.
- 5 funds opened new ProPhase Labs positions in Q3 2025 and 10 closed out, a net change of -5 holders.
- The largest ProPhase Labs buyer in Q3 2025 was Susquehanna International Group, an estimated $114K added.
- The largest ProPhase Labs seller in Q3 2025 was Quinn Opportunity Partners, an estimated $85.4K sold.
Based on aggregated 13F filings for Q3 2025.