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ALAB · Astera Labs, Inc.

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Market Cap
$50.22B
Shares
173.49M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1,001
Total Value: $71,060,242,049
Total Shares: 147,143,809
Showing 1–100 of 1,064 holdings by value · page 1 of 11

Institutional Ownership Trend

10 quarters

Holder Concentration

Across 1,001 13F filers · Δ vs Mar 31, 2026
Top Holder
16.9%
Mar 2024 → Jun 2026 · range 16.9% – 44.4%
−1.9 pts
Top 5
40.9%
Mar 2024 → Jun 2026 · range 40.9% – 68.3%
−1.3 pts
Top 10
54.3%
Mar 2024 → Jun 2026 · range 53.6% – 80.3%
+0.7 pts
HHI
509
Mar 2024 → Jun 2026 · range 509 – 2,192
Broadly held−48

Quarterly Activity

vs Mar 31, 2026
New
375
Increased
294
Decreased
260
Sold Out
91
Unchanged
72
Holder count: +284
Institutional value: +376.6%
Shares held: +8.1%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,064
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1736297 CUSIP 04626A103 13F (30d) 712 filings 698 filers Visit website Investor relations