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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 $1.54M invested in ProPhase Labs in 2019 Q1 according to their latest regulatory filings, with 3 funds opening new positions, 5 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

67% more repeat investments, than reductions

Existing positions increased: 5 | Existing positions reduced: 3

14% more funds holding

Funds holding: 14 → 16 (+2)

0.02% more ownership

Funds ownership: 0.42% → 0.44% (+0.02%)

0% less capital invested

Capital invested by funds: $1.54M → $1.54M (-$5K)

Holders
16
Holders Change
+2
Holders Change %
+14.29%
% of All Funds
0.35%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
5
Reduced
3
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
+$54.2K
2
Bank of America
Bank of America
North Carolina
+$27.7K
3
PAM
Panagora Asset Management
Massachusetts
+$19.7K
4
Renaissance Technologies
Renaissance Technologies
New York
+$19.1K
5
Vanguard Group
Vanguard Group
Pennsylvania
+$7.14K

Top Sellers

Rank Fund Capital Flow
1
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$43K
2
Wells Fargo
Wells Fargo
California
-$15.1K
3
UBS Group
UBS Group
Switzerland
-$9.98K
4
Bank of New York Mellon
Bank of New York Mellon
New York
-$154

PRPH Hedge Fund Activity: Q1 2019 in Review

16 of the 4,632 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q1 2019, worth a combined $1.54M — down 0.32% from $1.54M a quarter earlier.

Buyers outnumbered sellers: 3 funds opened new PRPH positions and 1 closed out — a net gain of 2 holders — while 5 added to existing stakes and 3 trimmed.

The largest buyer was Citadel Advisors, opening a new position worth an estimated $54.2K. The largest seller was Acadian Asset Management, exiting entirely with an estimated $43K sold.

  • 16 institutional investors held ProPhase Labs (PRPH) as of Q1 2019, up from 14 in Q4 2018.
  • Funds reported $1.54M of ProPhase Labs stock for Q1 2019, down 0.32% quarter-over-quarter.
  • 3 funds opened new ProPhase Labs positions in Q1 2019 and 1 closed out, a net change of +2 holders.
  • The largest ProPhase Labs buyer in Q1 2019 was Citadel Advisors, an estimated $54.2K added.
  • The largest ProPhase Labs seller in Q1 2019 was Acadian Asset Management, an estimated $43K sold.

Based on aggregated 13F filings for Q1 2019.