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ProPhase Labs
PRPH

Delisted

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

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20 hedge funds and large institutions have $2.52M invested in ProPhase Labs in 2017 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 4 increasing their positions, 4 reducing their positions, and 0 closing their positions.

New
Increased
Maintained
Reduced
Closed

54% more funds holding

Funds holding: 13 → 20 (+7)

0.45% more ownership

Funds ownership: 6.56% → 7.01% (+0.45%)

0% more repeat investments, than reductions

Existing positions increased: 4 | Existing positions reduced: 4

1% less capital invested

Capital invested by funds: $2.54M → $2.52M (-$22K)

Holders
20
Holders Change
+7
Holders Change %
+53.85%
% of All Funds
0.5%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
4
Reduced
4
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$84.3K
2
Goldman Sachs
Goldman Sachs
New York
+$80.7K
3
PAM
Panagora Asset Management
Massachusetts
+$60.6K
4
Millennium Management
Millennium Management
New York
+$51.5K
5
Renaissance Technologies
Renaissance Technologies
New York
+$36.4K

Top Sellers

Rank Fund Capital Flow
1
Vanguard Group
Vanguard Group
Pennsylvania
-$107K
2
PNC Financial Services Group
PNC Financial Services Group
Pennsylvania
-$40.1K
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$21.5K
4
Commonwealth Equity Services
Commonwealth Equity Services
Massachusetts
-$13K

PRPH Hedge Fund Activity: Q2 2017 in Review

20 of the 4,022 institutional investors tracked by Wall St. Rank reported a position in ProPhase Labs (PRPH) for Q2 2017, worth a combined $2.52M — down 0.86% from $2.54M a quarter earlier.

Buyers outnumbered sellers: 7 funds opened new PRPH positions and 0 closed out — a net gain of 7 holders — while 4 added to existing stakes and 4 trimmed.

The largest buyer was BlackRock, adding an estimated $84.3K. The largest seller was Vanguard Group, cutting an estimated $107K.

  • 20 institutional investors held ProPhase Labs (PRPH) as of Q2 2017, up from 13 in Q1 2017.
  • Funds reported $2.52M of ProPhase Labs stock for Q2 2017, down 0.86% quarter-over-quarter.
  • 7 funds opened new ProPhase Labs positions in Q2 2017 and 0 closed out, a net change of +7 holders.
  • The largest ProPhase Labs buyer in Q2 2017 was BlackRock, an estimated $84.3K added.
  • The largest ProPhase Labs seller in Q2 2017 was Vanguard Group, an estimated $107K sold.

Based on aggregated 13F filings for Q2 2017.