FMR LLC
Rank #1
14.9%
- Shares
- 25.53M
- Change
- +194.94K
- Change %
- +77.00%
- Filing
- Mar 31, 2026
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · TECHNOLOGY · Holders
Astera Labs, Inc. (ALAB) Institutional Ownership & Insider Trading History
Top ALAB institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Ownership read
ALAB insider sentiment: Net selling.
FMR LLC is the largest loaded institutional holder. 117 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
ALAB
Purchases—
Sales210.42M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
25.53M
FMR LLC
Insider stance
Net selling
$48.99B sold / — bought
Latest filing
May 22, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
- Holder rows
- 120
- Market data feed
- Latest filing
- May 22, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 74
- 43 decreased in loaded rows
- Insider rows
- 120
- Market data feed
Top 120 institutional holders
Astera Labs, Inc. (ALAB) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where the ownership feed supplies them.
VANGUARD GROUP INC
Rank #2
8.05%
- Shares
- 13.83M
- Change
- +84.36K
- Change %
- +61.00%
- Filing
- Dec 31, 2025
Increased
BLACKROCK
Rank #3
6.66%
- Shares
- 11.45M
- Change
- -1.52M
- Change %
- -11.71%
- Filing
- Mar 31, 2026
Decreased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #4
4.25%
- Shares
- 7.31M
- Change
- +7.31M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
VANGUARD CAPITAL MANAGEMENT LLC
Rank #5
3.69%
- Shares
- 6.34M
- Change
- +6.34M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
ATREIDES MANAGEMENT
Rank #6
1.96%
- Shares
- 3.37M
- Change
- +1.75M
- Change %
- +1.09%
- Filing
- Mar 31, 2026
Increased
STATE STREET CORP
Rank #7
1.94%
- Shares
- 3.33M
- Change
- +233.80K
- Change %
- +7.54%
- Filing
- Mar 31, 2026
Increased
FRED ALGER MANAGEMENT
Rank #8
1.50%
- Shares
- 2.57M
- Change
- +638.32K
- Change %
- +32.99%
- Filing
- Mar 31, 2026
Increased
ALLIANCEBERNSTEIN L.P.
Rank #9
1.46%
- Shares
- 2.51M
- Change
- +334.90K
- Change %
- +15.38%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #10
1.46%
- Shares
- 2.51M
- Change
- +79.19K
- Change %
- +3.26%
- Filing
- Mar 31, 2026
Increased
AMUNDI
Rank #11
1.09%
- Shares
- 1.88M
- Change
- +823.48K
- Change %
- +77.88%
- Filing
- Mar 31, 2026
Increased
VAN ECK ASSOCIATES CORP
Rank #12
1.09%
- Shares
- 1.86M
- Change
- +1.82M
- Change %
- +40.60%
- Filing
- Mar 31, 2026
Increased
BNP PARIBAS FINANCIAL MARKETS
Rank #13
1.06%
- Shares
- 1.81M
- Change
- +1.02M
- Change %
- +1.27%
- Filing
- Mar 31, 2026
Increased
BANK OF AMERICA CORP
Rank #14
1.04%
- Shares
- 1.79M
- Change
- +299.42K
- Change %
- +20.11%
- Filing
- Mar 31, 2026
Increased
MORGAN STANLEY
Rank #15
1.01%
- Shares
- 1.73M
- Change
- -202.12K
- Change %
- -10.45%
- Filing
- Mar 31, 2026
Decreased
BARCLAYS PLC
Rank #16
0.90%
- Shares
- 1.55M
- Change
- +404.10K
- Change %
- +35.14%
- Filing
- Mar 31, 2026
Increased
D. E. SHAW & CO.
Rank #17
0.88%
- Shares
- 1.52M
- Change
- -932.82K
- Change %
- -38.04%
- Filing
- Mar 31, 2026
Decreased
CITIGROUP INC
Rank #18
0.88%
- Shares
- 1.51M
- Change
- +584.72K
- Change %
- +62.99%
- Filing
- Mar 31, 2026
Increased
UBS GROUP AG
Rank #19
0.84%
- Shares
- 1.44M
- Change
- -111.38K
- Change %
- -7.17%
- Filing
- Mar 31, 2026
Decreased
GOLDMAN SACHS GROUP INC
Rank #20
0.80%
- Shares
- 1.38M
- Change
- +67.19K
- Change %
- +5.12%
- Filing
- Mar 31, 2026
Increased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 14.9% | 25.53M | +194.94K Increased | +77.00% | Mar 31, 2026 | |
| 2 | 8.05% | 13.83M | +84.36K Increased | +61.00% | Dec 31, 2025 | |
| 3 | 6.66% | 11.45M | -1.52M Decreased | -11.71% | Mar 31, 2026 | |
| 4 | 4.25% | 7.31M | +7.31M Initiated | — | Mar 31, 2026 | |
| 5 | 3.69% | 6.34M | +6.34M Initiated | — | Mar 31, 2026 | |
| 6 | ATREIDES MANAGEMENT | 1.96% | 3.37M | +1.75M Increased | +1.09% | Mar 31, 2026 |
| 7 | 1.94% | 3.33M | +233.80K Increased | +7.54% | Mar 31, 2026 | |
| 8 | FRED ALGER MANAGEMENT | 1.50% | 2.57M | +638.32K Increased | +32.99% | Mar 31, 2026 |
| 9 | 1.46% | 2.51M | +334.90K Increased | +15.38% | Mar 31, 2026 | |
| 10 | 1.46% | 2.51M | +79.19K Increased | +3.26% | Mar 31, 2026 | |
| 11 | 1.09% | 1.88M | +823.48K Increased | +77.88% | Mar 31, 2026 | |
| 12 | VAN ECK ASSOCIATES CORP | 1.09% | 1.86M | +1.82M Increased | +40.60% | Mar 31, 2026 |
| 13 | BNP PARIBAS FINANCIAL MARKETS | 1.06% | 1.81M | +1.02M Increased | +1.27% | Mar 31, 2026 |
| 14 | 1.04% | 1.79M | +299.42K Increased | +20.11% | Mar 31, 2026 | |
| 15 | 1.01% | 1.73M | -202.12K Decreased | -10.45% | Mar 31, 2026 | |
| 16 | BARCLAYS PLC | 0.90% | 1.55M | +404.10K Increased | +35.14% | Mar 31, 2026 |
| 17 | 0.88% | 1.52M | -932.82K Decreased | -38.04% | Mar 31, 2026 | |
| 18 | CITIGROUP INC | 0.88% | 1.51M | +584.72K Increased | +62.99% | Mar 31, 2026 |
| 19 | 0.84% | 1.44M | -111.38K Decreased | -7.17% | Mar 31, 2026 | |
| 20 | 0.80% | 1.38M | +67.19K Increased | +5.12% | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
Astera Labs, Inc. (ALAB) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
Gajendra Sanjay
- Shares
- 1.21M
- % company
- 0.71%
- Price
- Non-cash
- Value
- Non-cash
Filed May 22, 2026
Gajendra Sanjay
- Shares
- 5.29M
- % company
- 3.09%
- Price
- Non-cash
- Value
- Non-cash
Filed May 22, 2026
Gajendra Sanjay
- Shares
- 5.06M
- % company
- 2.95%
- Price
- $293.03
- Value
- $1,483,962,790
Filed May 21, 2026
Gajendra Sanjay
- Shares
- 5.07M
- % company
- 2.96%
- Price
- $292.14
- Value
- $1,480,893,784
Filed May 21, 2026
Gajendra Sanjay
- Shares
- 5.12M
- % company
- 2.99%
- Price
- $291.28
- Value
- $1,490,445,358
Filed May 21, 2026
Gajendra Sanjay
- Shares
- 5.19M
- % company
- 3.03%
- Price
- $290.21
- Value
- $1,506,225,412
Filed May 21, 2026
Gajendra Sanjay
- Shares
- 5.33M
- % company
- 3.11%
- Price
- $289.13
- Value
- $1,540,342,830
Filed May 21, 2026
Mazzara Philip
- Shares
- 103.34K
- % company
- 0.06%
- Price
- $291.03
- Value
- $30,075,407
Filed May 21, 2026
Mohan Jitendra
- Shares
- 3.79M
- % company
- 2.21%
- Price
- $250.00
- Value
- $947,309,895
Filed May 19, 2026
Mohan Jitendra
- Shares
- 3.79M
- % company
- 2.21%
- Price
- $249.61
- Value
- $946,037,089
Filed May 19, 2026
Gajendra Sanjay
- Shares
- 615.00K
- % company
- 0.36%
- Price
- $248.50
- Value
- $152,824,425
Filed May 19, 2026
Gajendra Sanjay
- Shares
- 615.00K
- % company
- 0.36%
- Price
- $248.62
- Value
- $152,899,824
Filed May 19, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | Gajendra Sanjay | 0.71% | Gift | 1.21M | Non-cash | Non-cash | May 22, 2026 |
| 2 | Gajendra Sanjay | 3.09% | Gift | 5.29M | Non-cash | Non-cash | May 22, 2026 |
| 3 | Gajendra Sanjay | 2.95% | Sale | 5.06M | $293.03 | $1,483,962,790 | May 21, 2026 |
| 4 | Gajendra Sanjay | 2.96% | Sale | 5.07M | $292.14 | $1,480,893,784 | May 21, 2026 |
| 5 | Gajendra Sanjay | 2.99% | Sale | 5.12M | $291.28 | $1,490,445,358 | May 21, 2026 |
| 6 | Gajendra Sanjay | 3.03% | Sale | 5.19M | $290.21 | $1,506,225,412 | May 21, 2026 |
| 7 | Gajendra Sanjay | 3.11% | Sale | 5.33M | $289.13 | $1,540,342,830 | May 21, 2026 |
| 8 | Mazzara Philip | 0.06% | Sale | 103.34K | $291.03 | $30,075,407 | May 21, 2026 |
| 9 | Mohan Jitendra | 2.21% | Sale | 3.79M | $250.00 | $947,309,895 | May 19, 2026 |
| 10 | Mohan Jitendra | 2.21% | Sale | 3.79M | $249.61 | $946,037,089 | May 19, 2026 |
| 11 | Gajendra Sanjay | 0.36% | Sale | 615.00K | $248.50 | $152,824,425 | May 19, 2026 |
| 12 | Gajendra Sanjay | 0.36% | Sale | 615.00K | $248.62 | $152,899,824 | May 19, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest ALAB shareholders?
FMR LLC is the largest institutional holder in the loaded ALAB ownership feed, with 25.53 million shares, or about 14.86% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of ALAB?
The current TECHi snapshot has 120 loaded institutional rows for Astera Labs, Inc.. 74 rows are marked increased or initiated, while 43 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see Astera Labs, Inc. insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for ALAB, with the latest insider filing dated May 22, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are ALAB insiders buying or selling?
The loaded ALAB Form 4 rows currently read Net selling: 117 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active ALAB insider in the loaded filings?
Mohan Jitendra is the most active insider by absolute share movement in the loaded ALAB rows, with 108.47 million shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.