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PRPH

ProPhase Labs
PRPH

Delisted

PRPH was delisted on the 2nd of January, 2026.

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43 hedge funds and large institutions have $30.3M invested in ProPhase Labs in 2022 Q3 according to their latest regulatory filings, with 10 funds opening new positions, 19 increasing their positions, 8 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

138% more repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 8

100% more first-time investments, than exits

New positions opened: 10 | Existing positions closed: 5

22% more capital invested

Capital invested by funds: $24.9M → $30.3M (+$5.41M)

13% more funds holding

Funds holding: 38 → 43 (+5)

0.41% more ownership

Funds ownership: 1.27% → 1.68% (+0.41%)

77% less call options, than puts

Call options by funds: $124K | Put options by funds: $530K

Holders
43
Holders Change
+5
Holders Change %
+13.16%
% of All Funds
0.74%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
10
Increased
19
Reduced
8
Closed
5
Calls
$124K
Puts
$530K
Net Calls
-$406K
Net Calls Change
-$663K

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$1.51M
2
Invesco
Invesco
Georgia
+$1.5M
3
Renaissance Technologies
Renaissance Technologies
New York
+$1.47M
4
BlackRock
BlackRock
New York
+$1.15M
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$636K

Top Sellers

Rank Fund Capital Flow
1
HIM
Hillsdale Investment Management
Ontario, Canada
-$715K
2
Ameriprise
Ameriprise
Minnesota
-$547K
3
VF
Virtu Financial
New York
-$435K
4
PCM
Perritt Capital Management
Illinois
-$237K
5
Vanguard Group
Vanguard Group
Pennsylvania
-$209K

PRPH Hedge Fund Activity: Q3 2022 in Review

43 of the 5,827 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q3 2022, worth a combined $30.3M — up 22% from $24.9M a quarter earlier.

Buyers outnumbered sellers: 10 funds opened new PRPH positions and 5 closed out — a net gain of 5 holders — while 19 added to existing stakes and 8 trimmed.

The largest buyer was Millennium Management, adding an estimated $1.51M. The largest seller was Hillsdale Investment Management, cutting an estimated $715K.

  • 43 institutional investors held ProPhase Labs (PRPH) as of Q3 2022, up from 38 in Q2 2022.
  • Funds reported $30.3M of ProPhase Labs stock for Q3 2022, up 22% quarter-over-quarter.
  • 10 funds opened new ProPhase Labs positions in Q3 2022 and 5 closed out, a net change of +5 holders.
  • The largest ProPhase Labs buyer in Q3 2022 was Millennium Management, an estimated $1.51M added.
  • The largest ProPhase Labs seller in Q3 2022 was Hillsdale Investment Management, an estimated $715K sold.

Based on aggregated 13F filings for Q3 2022.