We are live on ! Find out more
PRPH icon

ProPhase Labs
PRPH

Delisted

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

Back to rankings

13 hedge funds and large institutions have $2.54M invested in ProPhase Labs in 2017 Q1 according to their latest regulatory filings, with 2 funds opening new positions, 1 increasing their positions, 1 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more first-time investments, than exits

New positions opened: 2 | Existing positions closed: 1

12% more capital invested

Capital invested by funds: $2.27M → $2.54M (+$274K)

0% more funds holding

Funds holding: 13 → 13 (0)

0% more repeat investments, than reductions

Existing positions increased: 1 | Existing positions reduced: 1

0.09% less ownership

Funds ownership: 6.65% → 6.56% (-0.09%)

Holders
13
Holders Change
–
Holders Change %
0%
% of All Funds
0.32%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
2
Increased
1
Reduced
1
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$12.1K
2
Renaissance Technologies
Renaissance Technologies
New York
+$10.1K
3
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$406

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$34K
2
UBS Group
UBS Group
Switzerland
-$8.44K

PRPH Hedge Fund Activity: Q1 2017 in Review

13 of the 4,034 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q1 2017, worth a combined $2.54M — up 12% from $2.27M a quarter earlier.

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

The largest buyer was BlackRock, opening a new position worth an estimated $12.1K. The largest seller was Citadel Advisors, exiting entirely with an estimated $34K sold.

  • 13 institutional investors held ProPhase Labs (PRPH) as of Q1 2017, unchanged from Q4 2016.
  • Funds reported $2.54M of ProPhase Labs stock for Q1 2017, up 12% quarter-over-quarter.
  • 2 funds opened new ProPhase Labs positions in Q1 2017 and 1 closed out, a net change of +1 holder.
  • The largest ProPhase Labs buyer in Q1 2017 was BlackRock, an estimated $12.1K added.
  • The largest ProPhase Labs seller in Q1 2017 was Citadel Advisors, an estimated $34K sold.

Based on aggregated 13F filings for Q1 2017.