ProPhase Labs
PRPH
PRPH was delisted on the 2nd of January, 2026.
38 hedge funds and large institutions have $24.9M invested in ProPhase Labs in 2022 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 8 increasing their positions, 8 reducing their positions, and 3 closing their positions.
567% more first-time investments, than exits
New positions opened: 20 | Existing positions closed: 3
137% more call options, than puts
Call options by funds: $444K | Put options by funds: $187K
131% more capital invested
Capital invested by funds: $10.8M → $24.9M (+$14.1M)
73% more funds holding
Funds holding: 22 → 38 (+16)
0.27% more ownership
Funds ownership: 0.99% → 1.27% (+0.27%)
0% more repeat investments, than reductions
Existing positions increased: 8 | Existing positions reduced: 8
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
+$770K |
| 2 |
HIM
Hillsdale Investment Management
Toronto,
Ontario, Canada
|
+$629K |
| 3 |
GC
Globeflex Capital
San Diego,
California
|
+$494K |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$309K |
| 5 |
VF
Virtu Financial
New York
|
+$301K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PCM
Perritt Capital Management
Chicago,
Illinois
|
-$576K |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$158K |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$100K |
| 4 |
Group One Trading
Chicago,
Illinois
|
-$42.8K |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$19.8K |
PRPH Hedge Fund Activity: Q2 2022 in Review
38 of the 5,958 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q2 2022, worth a combined $24.9M — up 131% from $10.8M a quarter earlier.
Buyers outnumbered sellers: 20 funds opened new PRPH positions and 3 closed out — a net gain of 17 holders — while 8 added to existing stakes and 8 trimmed.
The largest buyer was Vanguard Group, adding an estimated $770K. The largest seller was Perritt Capital Management, cutting an estimated $576K.
- 38 institutional investors held ProPhase Labs (PRPH) as of Q2 2022, up from 22 in Q1 2022.
- Funds reported $24.9M of ProPhase Labs stock for Q2 2022, up 131% quarter-over-quarter.
- 20 funds opened new ProPhase Labs positions in Q2 2022 and 3 closed out, a net change of +17 holders.
- The largest ProPhase Labs buyer in Q2 2022 was Vanguard Group, an estimated $770K added.
- The largest ProPhase Labs seller in Q2 2022 was Perritt Capital Management, an estimated $576K sold.
Based on aggregated 13F filings for Q2 2022.