ProPhase Labs
PRPH
PRPH was delisted on the 2nd of January, 2026.
45 hedge funds and large institutions have $15.8M invested in ProPhase Labs in 2023 Q2 according to their latest regulatory filings, with 11 funds opening new positions, 10 increasing their positions, 15 reducing their positions, and 5 closing their positions.
120% more first-time investments, than exits
New positions opened: 11 | Existing positions closed: 5
15% more funds holding
Funds holding: 39 → 45 (+6)
0.16% less ownership
Funds ownership: 1.42% → 1.27% (-0.16%)
15% less capital invested
Capital invested by funds: $18.6M → $15.8M (-$2.81M)
33% less repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 15
69% less call options, than puts
Call options by funds: $200K | Put options by funds: $637K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$141K |
| 2 |
WG
Winton Group
London,
United Kingdom
|
+$136K |
| 3 |
OQS
Occudo Quantitative Strategies
Fort Lauderdale,
Florida
|
+$107K |
| 4 |
Squarepoint
New York
|
+$98.3K |
| 5 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$84.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Acadian Asset Management
Boston,
Massachusetts
|
-$739K |
| 2 |
Renaissance Technologies
New York
|
-$448K |
| 3 |
NA
Navellier & Associates
Reno,
Nevada
|
-$446K |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$332K |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$222K |
PRPH Hedge Fund Activity: Q2 2023 in Review
45 of the 6,382 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q2 2023, worth a combined $15.8M — down 15% from $18.6M a quarter earlier.
Buyers outnumbered sellers: 11 funds opened new PRPH positions and 5 closed out — a net gain of 6 holders — while 10 added to existing stakes and 15 trimmed.
The largest buyer was T. Rowe Price Associates, opening a new position worth an estimated $141K. The largest seller was Acadian Asset Management, exiting entirely with an estimated $739K sold.
- 45 institutional investors held ProPhase Labs (PRPH) as of Q2 2023, up from 39 in Q1 2023.
- Funds reported $15.8M of ProPhase Labs stock for Q2 2023, down 15% quarter-over-quarter.
- 11 funds opened new ProPhase Labs positions in Q2 2023 and 5 closed out, a net change of +6 holders.
- The largest ProPhase Labs buyer in Q2 2023 was T. Rowe Price Associates, an estimated $141K added.
- The largest ProPhase Labs seller in Q2 2023 was Acadian Asset Management, an estimated $739K sold.
Based on aggregated 13F filings for Q2 2023.