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PRPH

ProPhase Labs
PRPH

Delisted

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

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14 hedge funds and large institutions have $1.27M invested in ProPhase Labs in 2018 Q1 according to their latest regulatory filings, with 3 funds opening new positions, 3 increasing their positions, 3 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 3 | Existing positions closed: 1

47% more capital invested

Capital invested by funds: $866K → $1.27M (+$408K)

17% more funds holding

Funds holding: 12 → 14 (+2)

0.07% more ownership

Funds ownership: 0.32% → 0.39% (+0.07%)

0% more repeat investments, than reductions

Existing positions increased: 3 | Existing positions reduced: 3

Holders
14
Holders Change
+2
Holders Change %
+16.67%
% of All Funds
0.32%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
3
Reduced
3
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Northern Trust
Northern Trust
Illinois
+$75K
2
Vanguard Group
Vanguard Group
Pennsylvania
+$49.1K
3
BlackRock
BlackRock
New York
+$12K
4
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$12K
5
Bank of America
Bank of America
North Carolina
+$153

Top Sellers

Rank Fund Capital Flow
1
Deutsche Bank
Deutsche Bank
Germany
-$40K
2
Renaissance Technologies
Renaissance Technologies
New York
-$20.9K
3
Citadel Advisors
Citadel Advisors
Florida
-$687
4
UBS Group
UBS Group
Switzerland
-$25

PRPH Hedge Fund Activity: Q1 2018 in Review

14 of the 4,373 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q1 2018, worth a combined $1.27M — up 47% from $866K a quarter earlier.

Buyers outnumbered sellers: 3 funds opened new PRPH positions and 1 closed out — a net gain of 2 holders — while 3 added to existing stakes and 3 trimmed.

The largest buyer was Northern Trust, adding an estimated $75K. The largest seller was Deutsche Bank, exiting entirely with an estimated $40K sold.

  • 14 institutional investors held ProPhase Labs (PRPH) as of Q1 2018, up from 12 in Q4 2017.
  • Funds reported $1.27M of ProPhase Labs stock for Q1 2018, up 47% quarter-over-quarter.
  • 3 funds opened new ProPhase Labs positions in Q1 2018 and 1 closed out, a net change of +2 holders.
  • The largest ProPhase Labs buyer in Q1 2018 was Northern Trust, an estimated $75K added.
  • The largest ProPhase Labs seller in Q1 2018 was Deutsche Bank, an estimated $40K sold.

Based on aggregated 13F filings for Q1 2018.