AdvanSix
ASIX
266 hedge funds and large institutions have $572M invested in AdvanSix in 2026 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 80 increasing their positions, 64 reducing their positions, and 39 closing their positions.
2,935% more call options, than puts
Call options by funds: $11M | Put options by funds: $361K
38% more capital invested
Capital invested by funds: $414M → $572M (+$158M)
25% more repeat investments, than reductions
Existing positions increased: 80 | Existing positions reduced: 64
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
0.77% less ownership
Funds ownership: 89.05% → 88.28% (-0.77%)
4% less funds holding
Funds holding: 278 → 266 (-12)
10% less first-time investments, than exits
New positions opened: 35 | Existing positions closed: 39
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CM
CastleKnight Management
New York
|
+$11.9M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
+$6.54M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$6.03M |
| 4 |
Acadian Asset Management
Boston,
Massachusetts
|
+$4.18M |
| 5 |
LHCM
Lloyd Harbor Capital Management
Cold Spring Harbor,
New York
|
+$4.06M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$20.9M |
| 2 |
Millennium Management
New York
|
-$8.79M |
| 3 |
TSW
Thompson Siegel & Walmsley
Richmond,
Virginia
|
-$3.75M |
| 4 |
Renaissance Technologies
New York
|
-$3.53M |
| 5 |
Hotchkis & Wiley Capital Management
Los Angeles,
California
|
-$2.52M |
ASIX Hedge Fund Activity: Q1 2026 in Review
266 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in AdvanSix (ASIX) for Q1 2026, worth a combined $572M — up 38% from $414M a quarter earlier.
Sellers outnumbered buyers: 39 funds closed out of ASIX and 35 opened new positions — a net loss of 4 holders — while 64 trimmed existing stakes and 80 added.
The largest buyer was CastleKnight Management, opening a new position worth an estimated $11.9M. The largest seller was BlackRock, cutting an estimated $20.9M.
- 266 institutional investors held AdvanSix (ASIX) as of Q1 2026, down from 278 in Q4 2025.
- Funds reported $572M of AdvanSix stock for Q1 2026, up 38% quarter-over-quarter.
- 35 funds opened new AdvanSix positions in Q1 2026 and 39 closed out, a net change of -4 holders.
- The largest AdvanSix buyer in Q1 2026 was CastleKnight Management, an estimated $11.9M added.
- The largest AdvanSix seller in Q1 2026 was BlackRock, an estimated $20.9M sold.
Based on aggregated 13F filings for Q1 2026.