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Astera Labs, Inc.

ALAB
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001736297

In the last 90 days, Astera Labs, Inc. insiders filed 0 open-market purchases and 7 sales; 997 institutions reported holding it in 13F filings for Q2 2026, worth $61.2B in total; Maverick Capital is the only superinvestor holding it.

Holders of 5% or more of ALAB

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Astera Labs, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of ALAB
HolderLatest formStakeChangeFirst filedLatest filingFiling
FMR LLC13G/A9.10%15.8M shares–Apr 10, 20243 filingsOct 7, 2026SEC
BlackRock, Inc.13G/A7.40%12.7M shares+1.20 ppfrom 6.20%Oct 17, 20253 filingsJul 27, 2026SEC
Mohan Jitendra13G/A5.40%9.17M shares–Nov 19, 20242 filingsNov 14, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

17 Schedule 13D and 13G filings on Astera Labs, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on ALAB
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 7, 202611:47 AM ETFMR LLCand 1 other13G/A9.10%15.8M shares–Sep 30, 2026SEC
Jul 27, 20264:25 PM ETBlackRock, Inc.13G/A7.40%12.7M shares+1.20 ppfrom 6.20%Jun 30, 2026SEC
Mar 26, 20264:08 PM ETVanguard Group Inc13G/A0.00%0 shares−7.30 ppfrom 7.30%Below 5%Mar 13, 2026SEC
Jan 21, 202612:30 PM ETBlackRock, Inc.13G/A6.20%10.5M shares+1.18 ppfrom 5.02%Dec 31, 2025SEC
Nov 14, 20256:04 PM ETGajendra Sanjay13G/A4.50%7.57M shares–Below 5%Sep 30, 2025SEC
Nov 14, 20255:52 PM ETMohan Jitendra13G/A5.40%9.17M shares–Sep 30, 2025SEC
Oct 17, 20256:05 PM ETBlackRock, Inc.13G5.02%8.35M sharesNewSep 30, 2025SEC
Aug 13, 20253:50 PM ETAlliancebernstein L.P.13G/A3.90%6.39M shares−1.30 ppfrom 5.20%Below 5%Jun 30, 2025SEC
Jul 29, 202511:20 AM ETVanguard Group Inc13G/A7.30%12.0M shares+1.50 ppfrom 5.80%Jun 30, 2025SEC
May 14, 20255:22 PM ETAlliancebernstein L.P.13G5.20%8.40M sharesNewMar 31, 2025SEC
Feb 14, 20254:04 PM ETAtreides Management, LPand 2 others13G/A1.20%1.84M shares–Below 5%Dec 31, 2024SEC
Jan 30, 20259:35 PM ETVanguard Group Inc13G5.80%9.21M sharesNewDec 31, 2024SEC
Nov 19, 2024Gajendra Sanjay13GOld format–New–SEC
Nov 19, 2024Mohan Jitendra13GOld format–New–SEC
Nov 14, 2024Atreides Management, LP13GOld format–New–SEC
Nov 12, 2024FMR LLC13G/AOld format–––SEC
Apr 10, 2024FMR LLC13GOld format–New–SEC

Form 144: proposed insider sales

132 notices from officers, directors and other affiliates planning to sell Astera Labs, Inc. shares, newest first.

Form 144 notices for ALAB
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Nov 9, 20263:20 PM ETAmendedDyckerhoff Stefan ADirector12.5K$2.64MNov 5, 202610b5-1Stifel Nicolaus & Company IncSEC
Oct 7, 20264:47 PM ETDyckerhoff Stefan AAffiliate12.5K$4.70MOct 7, 202610b5-1Stifel Nicolaus & Company IncSEC
Sep 2, 20263:28 PM ETDyckerhoff Stefan AAffiliate12.5K$3.44MSep 2, 202610b5-1Stifel Nicolaus & Company IncSEC
Sep 1, 20265:02 PM ETMar 2011 Childrens TrustDirector170.0K$50.5MSep 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Sep 1, 20264:49 PM ETAlba 2003 Living TrustDirector150.0K$44.5MSep 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Sep 1, 20264:36 PM ETCasa Alameda 2007, LLCDirector33.0K$9.80MSep 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 6, 202612:41 PM ETDyckerhoff Stefan AAffiliate12.5K$3.90MAug 6, 202610b5-1Stifel Nicolaus & Company IncSEC
Jul 1, 20265:07 PM ETMar 2011 Childrens Trust U/A DTD 06/01/2011Director170.0K$82.1MJul 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 1, 20265:06 PM ETCasa Alameda 2007, LLCDirector33.0K$15.9MJul 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 1, 20265:05 PM ETAlba 2003 Living TrustDirector150.0K$72.5MJul 1, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 1, 20263:44 PM ETDyckerhoff Stefan AAffiliate12.5K$5.62MJul 1, 202610b5-1Stifel Nicolaus & Company IncSEC
Jun 24, 20264:01 PM ETMayer BethanyDirector686$275.6KJun 24, 202610b5-1UBS Financial Services, Inc.SEC
Jun 4, 20264:10 PM ETLazar Jack RDirector10.0K$3.55MJun 4, 202610b5-1UBS Financial Services, Inc.SEC
Jun 3, 20263:33 PM ETDyckerhoff Stefan AAffiliate12.5K$4.55MJun 3, 202610b5-1Stifel Nicolaus & Company IncSEC
May 28, 20264:11 PM ETTate 1997 Living TrustFormer officer30.0K$10.4MMay 28, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 26, 20264:17 PM ETTate 1997 Living TrustFormer officer20.0K$6.41MMay 26, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 22, 20264:17 PM ETTate 1997 Living TrustFormer officer30.0K$9.25MMay 22, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 21, 20265:57 PM ETPhilip MazzaraOfficer796$231.7KMay 21, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 21, 20264:53 PM ETNavad Trust dated November 1, 2012Director · Officer400.0K$115.0MMay 21, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 21, 20264:15 PM ETTate 1997 Living TrustFormer officer20.0K$5.87MMay 21, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 20, 20264:05 PM ETTate 1997 Living TrustFormer officer8.43K$2.29MMay 20, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 19, 20264:33 PM ETRN2021 Irrevocable Trust dated June 10, 2021Director · Officer40.0K$8.62MMay 19, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 19, 20264:33 PM ETSN2021 Irrevocable Trust dated June 10, 2021Director · Officer40.0K$8.62MMay 19, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 19, 20264:33 PM ETNavad Trust dated November 1, 2012Director · Officer200.0K$43.1MMay 19, 202610b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 18, 20264:58 PM ETPhilip MazzaraOfficer9.20K$2.17MMay 18, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC

Showing the latest 25. See the ALAB notices from the last 12 months