Security key
04626A103
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 102,645,031
- Total 13F value
- $9,280,526,514
- Share change
- +5,025,612
- Put/Call ratio
- 98%
- SEC-reported price per share
- $90.42
- Number of holders
- 497
- Value change
- +$636,726,917
- Number of buys
- 368
- Number of sells
- 149
- Shares outstanding
- 171,178,811
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
497
Top holders
10
ALAB full security history
Ownership snapshot
Full 13F holder table
Astera Labs, Inc. SEC filings
Astera Labs, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ALAB - Astera Labs, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ALLIANCEBERNSTEIN L.P.
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
13F
Lead comparable stake: 3.9%
13D/G row: ALLIANCEBERNSTEIN L.P.
Showing 1-6 of 15 holder rows.
Quick read
ALLIANCEBERNSTEIN L.P. leads the comparable SEC ownership view at 3.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ALLIANCEBERNSTEIN L.P.'s linked filing trail.
Comparable ownership
Top 5
ALLIANCEBERNSTEIN L.P.
3.9%
Atreides Management, LP
1.2%
FMR LLC
14%
VANGUARD GROUP INC
5.4%
BlackRock, Inc.
2.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. |
13D/G
13F
Company
|
3.9%
|
$612,952,522
6,391,580 shares
|
-$192,705,200 | 30 Jun 2025 |
| Atreides Management, LP |
13F
13D/G
Company
|
1.2%
from 13D/G
|
$277,600,593
4,652,264 shares
|
— | 31 Mar 2025 |
| FMR LLC |
13F
Company
|
14%
|
$1,439,404,024
24,122,742 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
5.4%
|
$554,780,393
9,297,476 shares
|
— | 31 Mar 2025 |
| BlackRock, Inc. |
13F
Company
|
2.7%
|
$277,633,769
4,652,820 shares
|
— | 31 Mar 2025 |
| D. E. Shaw & Co., Inc. |
13F
Company
|
2%
|
$201,460,539
3,376,245 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
497
Shares
102,645,031
Rows available
497
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
378
Q2 2025 holders
497
Holder diff
119
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|