Astera Labs
ALAB
657 hedge funds and large institutions have $21.7B invested in Astera Labs in 2025 Q3 according to their latest regulatory filings, with 220 funds opening new positions, 188 increasing their positions, 208 reducing their positions, and 71 closing their positions.
210% more first-time investments, than exits
New positions opened: 220 | Existing positions closed: 71
150% more funds holding in top 10
Funds holding in top 10: 6 → 15 (+9)
134% more capital invested
Capital invested by funds: $9.29B → $21.7B (+$12.4B)
28% more funds holding
Funds holding: 513 → 657 (+144)
4.35% more ownership
Funds ownership: 62.3% → 66.65% (+4.3%)
10% less repeat investments, than reductions
Existing positions increased: 188 | Existing positions reduced: 208
16% less call options, than puts
Call options by funds: $1.95B | Put options by funds: $2.34B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$675M |
| 2 |
Barclays
London,
United Kingdom
|
+$323M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$279M |
| 4 |
Amundi
Paris,
France
|
+$217M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
+$194M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AllianceBernstein
Nashville,
Tennessee
|
-$571M |
| 2 |
Ameriprise
Minneapolis,
Minnesota
|
-$152M |
| 3 |
AM
Atreides Management
Boston,
Massachusetts
|
-$147M |
| 4 |
FFM
FengHe Fund Management
Singapore
|
-$141M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
-$119M |
ALAB Hedge Fund Activity: Q3 2025 in Review
657 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Astera Labs (ALAB) for Q3 2025, worth a combined $21.7B — up 134% from $9.29B a quarter earlier.
Buyers outnumbered sellers: 220 funds opened new ALAB positions and 71 closed out — a net gain of 149 holders — while 188 added to existing stakes and 208 trimmed.
The largest buyer was BlackRock, adding an estimated $675M. The largest seller was AllianceBernstein, cutting an estimated $571M.
- 657 institutional investors held Astera Labs (ALAB) as of Q3 2025, up from 513 in Q2 2025.
- Funds reported $21.7B of Astera Labs stock for Q3 2025, up 134% quarter-over-quarter.
- 220 funds opened new Astera Labs positions in Q3 2025 and 71 closed out, a net change of +149 holders.
- The largest Astera Labs buyer in Q3 2025 was BlackRock, an estimated $675M added.
- The largest Astera Labs seller in Q3 2025 was AllianceBernstein, an estimated $571M sold.
Based on aggregated 13F filings for Q3 2025.