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PRPH

ProPhase Labs
PRPH

Delisted

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

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13 hedge funds and large institutions have $2.47M invested in ProPhase Labs in 2015 Q2 according to their latest regulatory filings, with 1 funds opening new positions, 6 increasing their positions, 2 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more repeat investments, than reductions

Existing positions increased: 6 | Existing positions reduced: 2

2% more capital invested

Capital invested by funds: $2.43M → $2.47M (+$37K)

19% less funds holding

Funds holding: 16 → 13 (-3)

75% less first-time investments, than exits

New positions opened: 1 | Existing positions closed: 4

Holders
13
Holders Change
-3
Holders Change %
-18.75%
% of All Funds
0.35%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
1
Increased
6
Reduced
2
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
+$14.2K
2
UBS Group
UBS Group
Switzerland
+$7.4K
3
TRCT
Tower Research Capital (TRC)
New York
+$3.62K
4
Vanguard Group
Vanguard Group
Pennsylvania
+$938
5
Goldman Sachs
Goldman Sachs
New York
+$482

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$20K
2
Northern Trust
Northern Trust
Illinois
-$14K
3
Bank of New York Mellon
Bank of New York Mellon
New York
-$12.9K
4
BIM
BlackRock Investment Management
Delaware
-$2K
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$402

PRPH Hedge Fund Activity: Q2 2015 in Review

13 of the 3,729 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q2 2015, worth a combined $2.47M — up 1.5% from $2.43M a quarter earlier.

Sellers outnumbered buyers: 4 funds closed out of PRPH and 1 opened new positions — a net loss of 3 holders — while 2 trimmed existing stakes and 6 added.

The largest buyer was Renaissance Technologies, adding an estimated $14.2K. The largest seller was Citadel Advisors, exiting entirely with an estimated $20K sold.

  • 13 institutional investors held ProPhase Labs (PRPH) as of Q2 2015, down from 16 in Q1 2015.
  • Funds reported $2.47M of ProPhase Labs stock for Q2 2015, up 1.5% quarter-over-quarter.
  • 1 fund opened new ProPhase Labs positions in Q2 2015 and 4 closed out, a net change of -3 holders.
  • The largest ProPhase Labs buyer in Q2 2015 was Renaissance Technologies, an estimated $14.2K added.
  • The largest ProPhase Labs seller in Q2 2015 was Citadel Advisors, an estimated $20K sold.

Based on aggregated 13F filings for Q2 2015.