ProPhase Labs
PRPH
PRPH was delisted on the 2nd of January, 2026.
50 hedge funds and large institutions have $26.5M invested in ProPhase Labs in 2022 Q4 according to their latest regulatory filings, with 17 funds opening new positions, 16 increasing their positions, 9 reducing their positions, and 9 closing their positions.
89% more first-time investments, than exits
New positions opened: 17 | Existing positions closed: 9
78% more repeat investments, than reductions
Existing positions increased: 16 | Existing positions reduced: 9
16% more funds holding
Funds holding: 43 → 50 (+7)
0.01% more ownership
Funds ownership: 1.68% → 1.69% (+0.01%)
12% less capital invested
Capital invested by funds: $30.3M → $26.5M (-$3.78M)
20% less call options, than puts
Call options by funds: $275K | Put options by funds: $342K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Bank of Montreal
Toronto,
Ontario, Canada
|
+$734K |
| 2 |
Acadian Asset Management
Boston,
Massachusetts
|
+$644K |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$500K |
| 4 |
NA
Navellier & Associates
Reno,
Nevada
|
+$348K |
| 5 |
Bank of New York Mellon
New York
|
+$248K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
-$1.46M |
| 2 |
Millennium Management
New York
|
-$1.39M |
| 3 |
QC
Quadrature Capital
London,
United Kingdom
|
-$345K |
| 4 |
PCM
Perritt Capital Management
Chicago,
Illinois
|
-$272K |
| 5 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
-$187K |
PRPH Hedge Fund Activity: Q4 2022 in Review
50 of the 6,237 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q4 2022, worth a combined $26.5M — down 12% from $30.3M a quarter earlier.
Buyers outnumbered sellers: 17 funds opened new PRPH positions and 9 closed out — a net gain of 8 holders — while 16 added to existing stakes and 9 trimmed.
The largest buyer was Bank of Montreal, opening a new position worth an estimated $734K. The largest seller was Invesco, exiting entirely with an estimated $1.46M sold.
- 50 institutional investors held ProPhase Labs (PRPH) as of Q4 2022, up from 43 in Q3 2022.
- Funds reported $26.5M of ProPhase Labs stock for Q4 2022, down 12% quarter-over-quarter.
- 17 funds opened new ProPhase Labs positions in Q4 2022 and 9 closed out, a net change of +8 holders.
- The largest ProPhase Labs buyer in Q4 2022 was Bank of Montreal, an estimated $734K added.
- The largest ProPhase Labs seller in Q4 2022 was Invesco, an estimated $1.46M sold.
Based on aggregated 13F filings for Q4 2022.