Assertio
ASRT
ASRT was delisted on the 15th of June, 2026.
52 hedge funds and large institutions have $18M invested in Assertio in 2025 Q4 according to their latest regulatory filings, with 10 funds opening new positions, 8 increasing their positions, 28 reducing their positions, and 23 closing their positions.
4.41% more ownership
Funds ownership: 26.2% → 30.61% (+4.4%)
19% less capital invested
Capital invested by funds: $22.2M → $18M (-$4.19M)
21% less funds holding
Funds holding: 66 → 52 (-14)
57% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 23
71% less repeat investments, than reductions
Existing positions increased: 8 | Existing positions reduced: 28
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OM
Opaleye Management
Boston,
Massachusetts
|
+$3.33M |
| 2 |
Edgewood Management
Greenwich,
Connecticut
|
+$1.25M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$269K |
| 4 |
SL
Sentinus LLC
Oak Brook,
Illinois
|
+$222K |
| 5 |
Jane Street
New York
|
+$119K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$336K |
| 2 |
TCMG
TSP Capital Management Group
Summit,
New Jersey
|
-$247K |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$170K |
| 4 |
Morgan Stanley
New York
|
-$169K |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
-$122K |
ASRT Hedge Fund Activity: Q4 2025 in Review
52 of the 8,280 institutional investors tracked by Wall St. Rank reported a position in Assertio (ASRT) for Q4 2025, worth a combined $18M — down 19% from $22.2M a quarter earlier.
Sellers outnumbered buyers: 23 funds closed out of ASRT and 10 opened new positions — a net loss of 13 holders — while 28 trimmed existing stakes and 8 added.
The largest buyer was Opaleye Management, opening a new position worth an estimated $3.33M. The largest seller was GSA Capital Partners, exiting entirely with an estimated $336K sold.
- 52 institutional investors held Assertio (ASRT) as of Q4 2025, down from 66 in Q3 2025.
- Funds reported $18M of Assertio stock for Q4 2025, down 19% quarter-over-quarter.
- 10 funds opened new Assertio positions in Q4 2025 and 23 closed out, a net change of -13 holders.
- The largest Assertio buyer in Q4 2025 was Opaleye Management, an estimated $3.33M added.
- The largest Assertio seller in Q4 2025 was GSA Capital Partners, an estimated $336K sold.
Based on aggregated 13F filings for Q4 2025.