Astera Labs Ownership | Who Owns Astera Labs?
Astera Labs Ownership Summary
Astera Labs is owned by 66.13% institutional investors, 10.82% insiders, and 23.06% retail investors. Fmr is the largest institutional shareholder, holding 15.06% of ALAB shares. Fidelity Select Semiconductors is the top mutual fund, with 4.34% of its assets in Astera Labs shares.
ALAB Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Astera Labs | 66.13% | 10.82% | 23.06% |
| Sector | Technology Stocks | 36.93% | 14.89% | 48.18% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 25.53M | 15.06% | $2.80B |
| Vanguard group | 13.83M | 8.26% | $2.30B |
| Blackrock funding, inc. /de | 11.45M | 6.75% | $1.25B |
| State street | 3.33M | 1.97% | $365.36M |
| Fred alger management | 2.57M | 1.52% | $282.00M |
| Alliancebernstein | 2.51M | 1.48% | $418.01M |
| Geode capital management | 2.51M | 1.48% | $274.17M |
| Van eck associates | 1.86M | 1.10% | $204.34M |
| Bnp paribas arbitrage, snc | 1.81M | 1.07% | $198.79M |
| Morgan stanley | 1.73M | 1.02% | $189.87M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Renaissance capital | 60.44K | 8.53% | $11.77M |
| Strategy capital | 352.27K | 3.16% | $38.61M |
| Estuary capital management lp | 170.96K | 3.14% | $18.74M |
| Analog century management lp | 504.30K | 2.64% | $55.27M |
| Value aligned research advisors | 902.81K | 2.59% | $176.77M |
| Warm springs advisors | 26.54K | 2.47% | $2.91M |
| Kadensa capital | 116.72K | 1.78% | $12.79M |
| Greenhouse funds lllp | 355.27K | 1.74% | $38.94M |
| Freemont management | 101.60K | 1.69% | $11.14M |
| Riposte capital | 60.00K | 1.68% | $6.58M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Van eck associates | 1.86M | 0.15% | 1.82M |
| Amundi | 1.42M | 0.10% | 1.32M |
| Bnp paribas arbitrage, snc | 1.81M | 0.10% | 1.02M |
| Vanguard fiduciary trust | 851.76K | 0.02% | 851.76K |
| Westfield capital management co lp | 860.11K | 0.40% | 664.82K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock funding, inc. /de | 11.45M | 0.02% | -1.52M |
| Massachusetts financial services co /ma/ | - | - | -1.51M |
| Altimeter capital management, lp | - | - | -981.70K |
| D. e. shaw | 1.52M | 0.10% | -932.82K |
| Atreides management, lp | 62.05K | 0.24% | -892.73K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 851.76K | 0.02% | 851.76K | $93.35M |
| Strategy capital | 352.27K | 3.16% | 352.27K | $38.61M |
| Norges bank | 349.69K | 0.01% | 349.69K | $58.17M |
| Champlain investment partners | 327.62K | 0.46% | 327.62K | $35.91M |
| Vanguard asset management | 222.54K | 0.02% | 222.54K | $24.39M |
Sold Out
| Holder | Change |
|---|---|
| Ross\johnson & associates | -1.00 |
| Palisade asset management | -2.00 |
| Stephens consulting | -3.00 |
| Peak6 | -3.00 |
| Capital advisors | -4.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 732 | -2.40% | 112,086,749 | -3.54% | 66 | 1.41% | 387 | -16.05% | 218 | 10.66% |
| Dec 31, 2025 | 264 | -63.08% | 22,396,807 | -79.78% | 13 | 0.30% | 165 | -60.53% | 70 | -66.51% |
| Sep 30, 2025 | 302 | -45.19% | 23,664,028 | -76.97% | 14 | 0.37% | 181 | -52.74% | 91 | -6.19% |
| Jun 30, 2025 | 541 | 27.29% | 102,591,786 | 4.70% | 62 | 1.72% | 374 | 44.40% | 96 | -2.04% |
| Mar 31, 2025 | 423 | -6.00% | 98,036,315 | 5.93% | 60 | 1.79% | 256 | -19.50% | 98 | 28.95% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Select Semiconductors | 7.43M | 4.34% | 1.08M |
| Vanguard Total Stock Mkt Idx Inv | 4.61M | 2.69% | 14.53K |
| Vanguard Small Cap Index | 3.33M | 1.94% | -7.34K |
| Fidelity Growth Compy Commingled Pl S | 2.72M | 1.59% | -394.22K |
| Fidelity Blue Chip Growth | 2.60M | 1.52% | 50.30K |
| Fidelity Blue Chip Growth Composite | 2.60M | 1.52% | 2.60M |
| iShares Semiconductor ETF | 2.55M | 1.49% | 25.62K |
| Fidelity Growth Company Fund | 2.28M | 1.33% | -176.00K |
| Fidelity Select Technology | 2.24M | 1.30% | - |
| Vanguard Small Cap Growth Index Inv | 1.87M | 1.09% | 158.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 04, 2026 | LAZAR JACK R | - | Sell | $401.86K |
| Jun 04, 2026 | LAZAR JACK R | - | Sell | $315.13K |
| Jun 04, 2026 | LAZAR JACK R | - | Sell | $318.94K |
| Jun 04, 2026 | LAZAR JACK R | - | Sell | $308.38K |
| Jun 04, 2026 | LAZAR JACK R | - | Sell | $316.23K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 180 |
| 2026 Q1 | - | 54 |
| 2025 Q4 | - | 74 |
| 2025 Q3 | - | 120 |
| 2025 Q2 | - | 94 |
ALAB Ownership FAQ
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