ALAB Institutional Ownership & Shareholders
ASTERA LABS INC (ALAB) is currently held by 965 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $61.84B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is currently the largest disclosed institutional shareholder of ALAB tracked by InsiderSet, reporting ownership valued at approximately $12.00B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $6.43B, representing an estimated loss of -46.44% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed ALAB value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in ASTERA LABS INC (ALAB).
This page ranks the largest institutional ALAB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
965
Total Reported Value
$61.84B
Largest Holder
Fmr Llc
Largest Position
$12.00B
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
59
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.52% | 24,845,364 | $12,000,807,697 | $6,427,495,667 | -$5,573,312,030 | -46.44% | |
| Blackrock, Inc. | 0.10% | 13,683,865 | $6,609,580,511 | $3,540,015,876 | -$3,069,564,636 | -46.44% | |
| Vanguard Portfolio Management Llc | 0.17% | 7,887,650 | $3,809,892,703 | $2,040,535,055 | -$1,769,357,648 | -46.44% | |
| Vanguard Capital Management Llc | 0.07% | 6,727,089 | $3,249,318,529 | $1,740,297,924 | -$1,509,020,605 | -46.44% | |
| Banque Cantonale Vaudoise | 0.37% | 5,539 | $2,675,000,000 | $1,432,939 | -$2,673,567,061 | -99.95% | |
| Invesco Ltd. | 0.19% | 4,910,555 | $2,371,896,276 | $1,270,360,579 | -$1,101,535,698 | -46.44% | |
| State Street Corp | 0.05% | 3,678,093 | $1,776,592,481 | $951,522,659 | -$825,069,822 | -46.44% | |
| Geode Capital Management, Llc | 0.07% | 2,796,173 | $1,347,072,037 | $723,369,955 | -$623,702,082 | -46.30% | |
| Price T Rowe Associates Inc | 0.12% | 2,409,693 | $1,163,931,000 | $623,387,579 | -$540,543,421 | -46.44% | |
| Van Eck Associates Corp | 0.66% | 2,237,961 | $1,080,979,922 | $578,960,511 | -$502,019,411 | -46.44% | |
| Bank Of America Corp | 0.07% | 2,198,235 | $1,061,791,470 | $568,683,395 | -$493,108,076 | -46.44% | |
| Morgan Stanley | 0.04% | 1,686,491 | $814,609,879 | $436,295,222 | -$378,314,657 | -46.44% | |
| Jpmorgan Chase & Co | 0.05% | 1,775,810 | $809,699,137 | $459,402,047 | -$350,297,090 | -43.26% | |
| Whale Rock Capital Management | Alex Sacerdote | 6.08% | 1,567,882 | $757,318,364 | $405,611,073 | -$351,707,291 | -46.44% |
| Norges Bank | 0.07% | 1,434,347 | $692,818,288 | $371,065,569 | -$321,752,719 | -46.44% | |
| Citigroup Inc | 0.30% | 1,352,136 | $653,108,731 | $349,797,583 | -$303,311,148 | -46.44% | |
| Rafferty Asset Management, Llc | 1.45% | 1,321,419 | $638,271,805 | $341,851,095 | -$296,420,710 | -46.44% | |
| Fred Alger Management, Llc | 2.07% | 1,283,840 | $620,120,397 | $332,129,408 | -$287,990,989 | -46.44% | |
| Goldman Sachs Group Inc | 0.06% | 1,234,152 | $596,120,151 | $319,275,122 | -$276,845,029 | -46.44% | |
| Atreides Management, Lp | 5.27% | 1,216,795 | $587,736,321 | $314,784,867 | -$272,951,455 | -46.44% | |
| Barclays Plc | 0.17% | 1,130,944 | $546,268,570 | $292,575,213 | -$253,693,357 | -46.44% | |
| Maverick Capital Ltd | 4.65% | 1,067,215 | $515,486,189 | $276,088,521 | -$239,397,669 | -46.44% | |
| Federated Hermes, Inc. | 0.65% | 938,311 | $453,222,979 | $242,741,056 | -$210,481,923 | -46.44% | |
| Vanguard Fiduciary Trust Co | 0.09% | 884,834 | $427,392,519 | $228,906,556 | -$198,485,963 | -46.44% | |
| Northern Trust Corp | 0.05% | 870,775 | $420,601,742 | $225,269,493 | -$195,332,250 | -46.44% | |
| T. Rowe Price Investment Management, Inc. | 0.28% | 869,556 | $420,013,000 | $224,954,137 | -$195,058,863 | -46.44% | |
| Fuller & Thaler Asset Management, Inc. | 1.13% | 857,286 | $414,086,420 | $221,779,888 | -$192,306,532 | -46.44% | |
| Nomura Asset Management Co Ltd | 0.88% | 852,312 | $411,683,743 | $220,493,114 | -$191,190,629 | -46.44% | |
| Ubs Group Ag | 0.06% | 802,024 | $387,393,633 | $207,483,609 | -$179,910,024 | -46.44% | |
| Bnp Paribas Financial Markets | 0.20% | 792,380 | $382,735,388 | $204,988,706 | -$177,746,682 | -46.44% | |
| Charles Schwab Investment Management Inc | 0.05% | 749,607 | $362,075,173 | $193,923,331 | -$168,151,842 | -46.44% | |
| D. E. Shaw & Co., Inc. | 0.20% | 680,298 | $328,597,540 | $175,993,093 | -$152,604,447 | -46.44% | |
| Deutsche Bank Ag\ | 0.09% | 674,096 | $325,601,850 | $174,388,635 | -$151,213,215 | -46.44% | |
| Legal & General Group Plc | 0.06% | 644,847 | $311,474,003 | $166,821,919 | -$144,652,084 | -46.44% | |
| Capital World Investors | 0.04% | 616,374 | $297,720,969 | $159,455,954 | -$138,265,015 | -46.44% | |
| Millennium Management Llc | 0.20% | 604,489 | $291,980,277 | $156,381,304 | -$135,598,973 | -46.44% | |
| First Trust Advisors Lp | 0.16% | 580,688 | $280,483,666 | $150,223,986 | -$130,259,680 | -46.44% | |
| Value Aligned Research Advisors, Llc | 1.64% | 568,316 | $274,507,994 | $147,023,349 | -$127,484,645 | -46.44% | |
| Clear Street Group Inc. | 0.82% | 539,212 | $260,450,180 | $139,494,144 | -$120,956,036 | -46.44% | |
| Canada Pension Plan Investment Board | 0.14% | 527,400 | $254,744,748 | $136,438,380 | -$118,306,368 | -46.44% | |
| Bank Of New York Mellon Corp | 0.04% | 498,996 | $241,024,927 | $129,090,265 | -$111,934,662 | -46.44% | |
| Tidal Investments Llc | 0.58% | 494,315 | $238,764,032 | $127,879,291 | -$110,884,742 | -46.44% | |
| 1832 Asset Management L.P. | 0.27% | 451,800 | $218,228,436 | $116,880,660 | -$101,347,776 | -46.44% | |
| Swiss National Bank | 0.10% | 383,964 | $185,462,291 | $99,331,487 | -$86,130,804 | -46.44% | |
| Tudor Investment Corp Et Al | 0.72% | 361,000 | $174,370,220 | $93,390,700 | -$80,979,520 | -46.44% | |
| Capital Impact Advisors, Llc | 9.44% | 348,617 | $168,388,983 | $90,187,218 | -$78,201,765 | -46.44% | |
| Bnp Paribas Asset Management Holding S.A. | 0.17% | 345,575 | $166,919,636 | $89,400,253 | -$77,519,384 | -46.44% | |
| Strategy Capital Llc | 10.19% | 342,338 | $165,356,101 | $88,562,841 | -$76,793,260 | -46.44% | |
| Nuveen, Llc | 0.04% | 326,756 | $157,829,369 | $84,531,777 | -$73,297,592 | -46.44% | |
| Squarepoint Ops Llc | 0.30% | 317,208 | $153,217,808 | $82,061,710 | -$71,156,098 | -46.44% |
Frequently asked questions about ALAB
Who are the largest institutional holders of ALAB?
The largest institutional holders of ALAB reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and Banque Cantonale Vaudoise. InsiderSet ranks institutional holders by their latest reported ALAB position.
What is ALAB institutional ownership?
This page tracks ALAB positions reported by institutional investment managers through SEC Form 13F. ASTERA LABS INC (ALAB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ALAB?
InsiderSet currently tracks 965 institutional managers reporting ALAB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ALAB shareholders.
How much ALAB stock do institutions own?
Institutional investment managers disclosed approximately $61.84B in ALAB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ALAB institutional ownership last updated?
The latest ALAB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ALAB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ALAB position after the reporting date.
Are institutions buying or selling ALAB?
Institutional buying and selling can be analyzed by comparing ALAB positions across consecutive 13F reporting periods. InsiderSet's ALAB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ALAB ownership changes.
How has ALAB institutional ownership changed over time?
InsiderSet tracks ALAB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.