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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in ALAB — Astera Labs, Inc.

CIK 912938 Boston, MA

Position in ALAB

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$100,912,052
-$194,290,712 QoQ
Shares Held
208,919
-86.1% QoQ
Ownership
0.120%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#78
of 983 holders
Holding Since
Mar 2024
7 quarters on record
Voting authority Sole 76% Shared 19% None 5%

Common Shares in ALAB Over Time

Shares Held

Position Value (USD)

Position in Semiconductors

Technology · as of Jun 30, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $31,779,658,313 across 33 Semiconductors names. ALAB ranks #11 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALAB

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $100,912,052 208,919
2025-09-30 $295,202,764 1,507,675
2025-06-30 $92,980,241 1,028,315
2024-12-31 $221,721,297 1,674,000
2024-09-30 $16,921,603 322,993
2024-06-30 $5,531,098 91,408
2024-03-31 $6,607,732 89,065