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PRPH

ProPhase Labs
PRPH

Delisted

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

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16 hedge funds and large institutions have $2.43M invested in ProPhase Labs in 2015 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 4 increasing their positions, 3 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

33% more repeat investments, than reductions

Existing positions increased: 4 | Existing positions reduced: 3

0% more funds holding

Funds holding: 16 → 16 (0)

0% more first-time investments, than exits

New positions opened: 1 | Existing positions closed: 1

10% less capital invested

Capital invested by funds: $2.71M → $2.43M (-$283K)

Holders
16
Holders Change
–
Holders Change %
0%
% of All Funds
0.42%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
1
Increased
4
Reduced
3
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
+$4.27K
2
UBS Group
UBS Group
Switzerland
+$1.44K
3
TRCT
Tower Research Capital (TRC)
New York
+$648
4
GT
Glenmede Trust
Pennsylvania
+$147
5
Goldman Sachs
Goldman Sachs
New York
+$133

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$17.8K
2
Bank of New York Mellon
Bank of New York Mellon
New York
-$8.66K
3
Northern Trust
Northern Trust
Illinois
-$1.09K
4
Deutsche Bank
Deutsche Bank
Germany
-$1K

PRPH Hedge Fund Activity: Q1 2015 in Review

16 of the 3,769 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q1 2015, worth a combined $2.43M — down 10% from $2.71M a quarter earlier.

Fund positioning in PRPH was balanced in Q1 2015: 1 fund opened new positions, 1 closed out, 4 added to existing stakes and 3 trimmed.

The largest buyer was Renaissance Technologies, adding an estimated $4.27K. The largest seller was Citadel Advisors, cutting an estimated $17.8K.

  • 16 institutional investors held ProPhase Labs (PRPH) as of Q1 2015, unchanged from Q4 2014.
  • Funds reported $2.43M of ProPhase Labs stock for Q1 2015, down 10% quarter-over-quarter.
  • 1 fund opened new ProPhase Labs positions in Q1 2015 and 1 closed out, a net change of 0 holders.
  • The largest ProPhase Labs buyer in Q1 2015 was Renaissance Technologies, an estimated $4.27K added.
  • The largest ProPhase Labs seller in Q1 2015 was Citadel Advisors, an estimated $17.8K sold.

Based on aggregated 13F filings for Q1 2015.