ProPhase Labs
PRPH
PRPH was delisted on the 2nd of January, 2026.
23 hedge funds and large institutions have $9.95M invested in ProPhase Labs in 2021 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 10 increasing their positions, 8 reducing their positions, and 8 closing their positions.
25% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 8
4% more capital invested
Capital invested by funds: $9.58M → $9.95M (+$367K)
0.2% more ownership
Funds ownership: 0.86% → 1.06% (+0.2%)
5% less call options, than puts
Call options by funds: $527K | Put options by funds: $557K
18% less funds holding
Funds holding: 28 → 23 (-5)
63% less first-time investments, than exits
New positions opened: 3 | Existing positions closed: 8
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.89M |
| 2 |
PCM
Perritt Capital Management
Chicago,
Illinois
|
+$745K |
| 3 |
AWE
Avidian Wealth Enterprises
Houston,
Texas
|
+$250K |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$202K |
| 5 |
Millennium Management
New York
|
+$163K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WCM
Wedge Capital Management
Charlotte,
North Carolina
|
-$880K |
| 2 |
FIA
FNY Investment Advisers
New York
|
-$439K |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$375K |
| 4 |
ZCA
Zeke Capital Advisors
Berwyn,
Pennsylvania
|
-$259K |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$225K |
PRPH Hedge Fund Activity: Q2 2021 in Review
23 of the 5,766 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q2 2021, worth a combined $9.95M — up 3.8% from $9.58M a quarter earlier.
Sellers outnumbered buyers: 8 funds closed out of PRPH and 3 opened new positions — a net loss of 5 holders — while 8 trimmed existing stakes and 10 added.
The largest buyer was Vanguard Group, adding an estimated $1.89M. The largest seller was Wedge Capital Management, exiting entirely with an estimated $880K sold.
- 23 institutional investors held ProPhase Labs (PRPH) as of Q2 2021, down from 28 in Q1 2021.
- Funds reported $9.95M of ProPhase Labs stock for Q2 2021, up 3.8% quarter-over-quarter.
- 3 funds opened new ProPhase Labs positions in Q2 2021 and 8 closed out, a net change of -5 holders.
- The largest ProPhase Labs buyer in Q2 2021 was Vanguard Group, an estimated $1.89M added.
- The largest ProPhase Labs seller in Q2 2021 was Wedge Capital Management, an estimated $880K sold.
Based on aggregated 13F filings for Q2 2021.