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Security record · archived quarter

ALAB

Astera Labs, Inc. Common Stock · Technology · Semiconductors

285.82 -5.4% mkt cap $49.59B quote delayed (FMP) · as of Oct 18 03:59 UTC · separate from filing data below

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
160Tracked holders
+4Δ holders
88.96MShares held
$9.89BReported value
+9New positions
−6Exits
Stable Conviction score 39/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +2.6% · share flow +0.2% · net new positions +1.9% · formula
Broad accumulation: rising shares across more holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q3 2026 3 0 87.34K $31.02M n/a n/a
Q2 2026 162 +4 96.67M $46.26B +12 −7
Q1 2026 160 +4 88.96M $9.89B +9 −6
Q4 2025 155 0 96.62M $16.07B +2 −1
Q3 2025 23 +2 64.57M $12.64B +2 −1
Q2 2025 19 0 54.23M $4.90B +2 −2
Q1 2025 16 0 12.18M $727.01M +2 −2
Q4 2024 16 +1 10.03M $1.33B +2 −1
Q3 2024 14 +5 6.25M $327.30M +6 −1
Q2 2024 9 n/a 2.59M $156.71M n/a n/a
Holder count
Who holds it · Q1 2026
#ManagerSharesΔ sharesValueTheir weightHeld
1 Fidelity (FMR) ✦ 25.53M +0.8% $2.80B 0.1% ▲ Add 4 SEC ↗ ×5
2 BlackRock ✦ (passive) 11.45M -11.7% $1.25B 0.0% ▼ Trim 4 SEC ↗ ×21
3 Vanguard Capital Management Llc 6.34M n/a $694.94M 0.0% n/c 1 SEC ↗
4 Alliancebernstein L.P. 2.51M +15.4% $418.01M 0.1% ▲ Add 2 SEC ↗
5 State Street Global Advisors ✦ (passive) 3.33M +7.5% $365.36M 0.0% ▲ Add 6 SEC ↗
6 Geode Capital Management ✦ (passive) 2.51M +3.3% $274.17M 0.0% ▲ Add 8 SEC ↗ ×2
7 Amundi 1.88M +77.9% $206.14M 0.1% ▲ Add 2 SEC ↗ ×2
8 Bnp Paribas Financial Markets 1.81M +127.5% $198.79M 0.1% ▲ Add 2 SEC ↗
9 Bank Of America Corp /De/ 1.79M +20.1% $195.99M 0.0% ▲ Add 2 SEC ↗ ×6
10 Morgan Stanley ✦ 1.73M -10.4% $189.87M 0.0% ▼ Trim 3 SEC ↗ ×14
11 Barclays Plc 1.55M +35.1% $170.34M 0.1% ▲ Add 2 SEC ↗ ×3
12 D. E. Shaw & Co. ✦ 1.52M -38.0% $166.54M 0.1% ▼ Trim 6 SEC ↗
13 Citigroup Inc 1.51M +63.0% $165.83M 0.1% ▲ Add 2 SEC ↗ ×3
14 UBS Group AG 1.44M -7.2% $158.11M 0.0% ▼ Trim 2 SEC ↗ ×5
15 Goldman Sachs Group ✦ 1.38M +5.1% $151.26M 0.0% ▲ Add 3 SEC ↗ ×2
16 1832 Asset Management L.P. 850.70K -36.8% $93.24M 0.1% ▼ Trim 2 SEC ↗
17 Northern Trust Corp 804.66K +5.7% $88.19M 0.0% ▲ Add 2 SEC ↗ ×6
18 Bridgewater Associates ✦ 750.94K +212.2% $82.30M 0.4% ▲ Add 4 SEC ↗
19 Two Sigma Investments ✦ 744.31K +17.5% $81.58M 0.1% ▲ Add 7 SEC ↗
20 Deutsche Bank Ag\ 730.90K -25.6% $80.11M 0.0% ▼ Trim 2 SEC ↗ ×6
21 Legal & General Group Plc 720.26K +35.1% $78.94M 0.0% ▲ Add 2 SEC ↗ ×3
22 Charles Schwab Investment… 661.50K +4.3% $72.50M 0.0% ▲ Add 2 SEC ↗
23 UBS AM, a distinct business unit of… 649.19K +12.7% $71.15M 0.0% ▲ Add 2 SEC ↗ ×12
24 T. Rowe Price ✦ 618.50K -46.9% $67.79M 0.0% ▼ Trim 8 SEC ↗ ×2
25 Susquehanna International Group, Llp 610.67K +61.5% $66.93M 0.1% ▲ Add 2 SEC ↗ ×3
26 Canada Pension Plan Investment Board 600.50K +659.2% $65.81M 0.0% ▲ Add 2 SEC ↗
27 Capital World Investors ✦ 600.00K 0.0% $65.76M 0.0% Held 8 SEC ↗
28 Artisan Partners Limited Partnership 560.58K -37.4% $61.44M 0.1% ▼ Trim 2 SEC ↗
29 Manufacturers Life Insurance… 538.21K +79.8% $58.99M 0.1% ▲ Add 2 SEC ↗
30 Bank of New York Mellon Corp 475.52K -5.2% $52.12M 0.0% ▼ Trim 2 SEC ↗ ×14
31 Adage Capital Partners ✦ 453.74K +168.9% $49.73M 0.1% ▲ Add 8 SEC ↗
32 Nomura Asset Management Co Ltd 450.63K -4.8% $49.39M 0.1% ▼ Trim 2 SEC ↗ ×3
33 Janus Henderson Group Plc 433.17K +3696.4% $47.41M 0.0% ▲ Add 2 SEC ↗ ×3
34 Tidal Investments LLC 407.73K +220.5% $44.69M 0.1% ▲ Add 2 SEC ↗ ×3
35 JPMorgan Chase ✦ 430.39K -38.8% $43.16M 0.0% ▼ Trim 3 SEC ↗ ×8
36 Swiss National Bank 390.16K +7.1% $42.76M 0.0% ▲ Add 2 SEC ↗
37 Invesco Ltd. 370.18K -31.1% $40.57M 0.0% ▼ Trim 2 SEC ↗ ×10
38 Focus Partners Wealth 314.49K -2.4% $34.47M 0.0% ▼ Trim 2 SEC ↗
39 Citadel Advisors ✦ 302.53K +145.9% $33.16M 0.0% ▲ Add 7 SEC ↗ ×2
40 Sumitomo Mitsui Trust Group, Inc. 293.85K +7.9% $32.21M 0.0% ▲ Add 2 SEC ↗
41 Nuveen, LLC 280.07K +6.6% $30.70M 0.0% ▲ Add 2 SEC ↗ ×3
42 Dimensional Fund Advisors Lp 280.64K +18.6% $30.69M 0.0% ▲ Add 2 SEC ↗ ×5
43 Federated Hermes, Inc. 272.26K -8.7% $29.84M 0.0% ▼ Trim 2 SEC ↗
44 National Pension Service 263.82K +12.2% $28.91M 0.0% ▲ Add 2 SEC ↗
45 American Century Companies Inc 245.89K +6.4% $26.95M 0.0% ▲ Add 2 SEC ↗
46 Sei Investments Co 245.73K -24.1% $26.93M 0.0% ▼ Trim 2 SEC ↗ ×3
47 Baillie Gifford ✦ 245.13K -3.1% $26.87M 0.0% ▼ Trim 4 SEC ↗ ×4
48 BNP Paribas Asset Management… 243.54K +30.7% $26.69M 0.0% ▲ Add 2 SEC ↗ ×3
49 First Trust Advisors Lp 238.95K -24.3% $26.19M 0.0% ▼ Trim 2 SEC ↗
50 Millennium Management ✦ 220.41K -12.3% $24.16M 0.0% ▼ Trim 8 SEC ↗
51 California Public Employees… 211.66K -0.3% $23.20M 0.0% ▼ Trim 2 SEC ↗
52 LPL Financial LLC 204.02K +2.9% $22.36M 0.0% ▲ Add 2 SEC ↗
53 California State Teachers… 202.86K -2.6% $22.23M 0.0% ▼ Trim 2 SEC ↗
54 Alkeon Capital Management Llc 200.00K -38.5% $21.92M 0.1% ▼ Trim 2 SEC ↗
55 Mirae Asset Global Investments Co.… 196.27K -12.8% $21.51M 0.1% ▼ Trim 2 SEC ↗
56 Ameriprise Financial Inc 190.62K -12.8% $20.86M 0.0% ▼ Trim 2 SEC ↗ ×3
57 Mitsubishi UFJ Asset Management… 186.67K -4.1% $20.46M 0.0% ▼ Trim 2 SEC ↗
58 Hsbc Holdings Plc 181.30K +8.3% $19.81M 0.0% ▲ Add 2 SEC ↗ ×4
59 Marshall Wace ✦ 179.55K -48.5% $19.68M 0.0% ▼ Trim 5 SEC ↗ ×2
60 IMC-Chicago, LLC 176.07K -9.3% $19.30M 0.3% ▼ Trim 2 SEC ↗
61 Rhumbline Advisers 158.64K +3.4% $17.39M 0.0% ▲ Add 2 SEC ↗
62 Squarepoint Ops LLC 141.56K -31.5% $15.51M 0.0% ▼ Trim 2 SEC ↗
63 Captrust Financial Advisors 141.02K +2633.0% $15.45M 0.0% ▲ Add 2 SEC ↗
64 Stifel Financial Corp 133.62K +27.9% $14.64M 0.0% ▲ Add 2 SEC ↗ ×3
65 Royal Bank Of Canada 132.29K -21.6% $14.50M 0.0% ▼ Trim 2 SEC ↗ ×9
66 Wells Fargo & Company/Mn 130.53K +0.7% $14.31M 0.0% ▲ Add 2 SEC ↗ ×4
67 Renaissance Technologies ✦ 129.40K -68.2% $14.18M 0.0% ▼ Trim 8 SEC ↗
68 Voya Investment Management Llc 124.30K -43.4% $13.62M 0.0% ▼ Trim 2 SEC ↗ ×3
69 Victory Capital Management Inc 122.62K -6.2% $13.44M 0.0% ▼ Trim 2 SEC ↗
70 State Board Of Administration Of… 114.10K -2.8% $12.51M 0.0% ▼ Trim 2 SEC ↗
71 Bank Of Montreal /Can/ 109.50K +859.5% $12.00M 0.0% ▲ Add 2 SEC ↗ ×7
72 Nomura Asset Management… 102.44K +5.6% $11.23M 0.0% ▲ Add 2 SEC ↗
73 Envestnet Asset Management Inc 101.36K +49.7% $11.11M 0.0% ▲ Add 2 SEC ↗
74 Pacer Advisors, Inc. 101.34K -73.9% $11.11M 0.0% ▼ Trim 2 SEC ↗
75 Wellington Management ✦ 98.96K +77.7% $10.85M 0.0% ▲ Add 7 SEC ↗ ×3
76 Raymond James Financial Inc 97.16K +0.2% $10.65M 0.0% ▲ Add 2 SEC ↗ ×4
77 Alyeska Investment Group, L.P. 97.11K New $10.64M 0.0% New 1 SEC ↗
78 Aviva Plc 93.37K +9.3% $10.23M 0.0% ▲ Add 2 SEC ↗
79 Healthcare Of Ontario Pension Plan… 92.00K New $10.08M 0.0% New 1 SEC ↗
80 Simplex Trading, Llc 91.87K New $10.07M 0.3% New 1 SEC ↗
81 Swedbank AB 91.02K +16.5% $9.98M 0.0% ▲ Add 2 SEC ↗ ×2
82 State Of Wisconsin Investment Board 90.82K +19.9% $9.95M 0.0% ▲ Add 2 SEC ↗
83 Korea Investment CORP 89.68K -3.2% $9.83M 0.0% ▼ Trim 2 SEC ↗
84 AQR Capital Management ✦ 88.30K +100.6% $9.25M 0.0% ▲ Add 6 SEC ↗ ×4
85 Russell Investments Group, Ltd. 80.69K +13.8% $8.73M 0.0% ▲ Add 2 SEC ↗ ×10
86 New York State Common Retirement… 72.69K -0.8% $7.97M 0.0% ▼ Trim 2 SEC ↗
87 Ensign Peak Advisors, Inc 57.74K -27.4% $6.33M 0.0% ▼ Trim 2 SEC ↗
88 Danske Bank A/S 56.60K +7.8% $6.20M 0.0% ▲ Add 2 SEC ↗ ×2
89 Pictet Asset Management Holding SA 55.97K -25.4% $6.13M 0.0% ▼ Trim 2 SEC ↗
90 Fifth Third Bancorp 54.03K +122693.2% $5.92M 0.0% ▲ Add 2 SEC ↗
91 Holocene Advisors, LP 53.44K New $5.86M 0.0% New 1 SEC ↗
92 Mitsubishi UFJ Trust & Banking Corp 53.36K -13.8% $5.85M 0.0% ▼ Trim 2 SEC ↗
93 Robeco Institutional Asset… 52.03K +183.4% $5.70M 0.0% ▲ Add 2 SEC ↗
94 Asset Management One Co., Ltd. 51.83K +1.1% $5.68M 0.0% ▲ Add 2 SEC ↗
95 Caisse De Depot Et Placement Du… 51.54K -64.6% $5.65M 0.0% ▼ Trim 2 SEC ↗
96 Zurcher Kantonalbank (Zurich… 49.59K +50.4% $5.43M 0.0% ▲ Add 2 SEC ↗
97 Universal- Beteiligungs- und… 42.95K +3.0% $4.71M 0.0% ▲ Add 2 SEC ↗
98 Quantinno Capital Management LP 42.15K +49.8% $4.62M 0.0% ▲ Add 2 SEC ↗
99 Royal London Asset Management Ltd 41.93K +736.4% $4.60M 0.0% ▲ Add 2 SEC ↗
100 Tudor Investment Corp Et Al 37.35K -59.8% $4.09M 0.0% ▼ Trim 2 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.

New buyers

Exited

Norges Bank $58.17M was 0.0%
Capstone Investment Advisors… $2.57M was 0.0%
Soros Fund Management $558,803 was 0.0%
Jennison Associates Llc $437,527 was 0.0%
Cerity Partners LLC $378,178 was 0.0%
DZ BANK AG Deutsche Zentral… $282,812 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 695 holders, 120.16M shares, $12.95B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Oct 07 Dyckerhoff Stefan A

Director · 661 sh · $248,576

Oct 07 Dyckerhoff Stefan A

Director · 8.33K sh · $3.13M

Oct 07 Dyckerhoff Stefan A

Director · 3.50K sh · $1.32M

Sep 02 Dyckerhoff Stefan A

Director · 172 sh · $47,601

Sep 02 Dyckerhoff Stefan A

Director · 52 sh · $14,229

Sep 02 Dyckerhoff Stefan A

Director · 785 sh · $216,293

Sep 02 Dyckerhoff Stefan A

Director · 650 sh · $177,868

Sep 02 Dyckerhoff Stefan A

Director · 273 sh · $74,705

Sep 02 Dyckerhoff Stefan A

Director · 429 sh · $117,884

Sep 02 Dyckerhoff Stefan A

Director · 1.87K sh · $514,420

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Oct 07 SC 13G/A: FMR LLC

View original SEC filing ↗

Jul 27 SC 13G/A: BlackRock, Inc.

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2026 · Methodology · Get this via the API