Granahan Investment Management, LLC
Position in ALGM — Allegro Microsystems, Inc.
CIK 1026710
WALTHAM, MA
Position in ALGM
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$12,911,794
+$6,132,813 QoQ
Shares Held
185,461
-13.7% QoQ
Ownership
0.099%
of shares outstanding
% of Portfolio
0.46%
of 13F equity value
Holder Rank
#60
of 370 holders
Holding Since
Mar 2024
8 quarters on record
Voting authority
Sole 90%
Shared 0%
None 10%
Common Shares in ALGM Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026Granahan Investment Management, LLC holds $290,954,703 across 8 Semiconductors names. ALGM ranks #4 (4.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SIMO |
Silicon Motion Technology CORP
|
445,752 | $148,582,514 | |
| 2 | INDI |
indie Semiconductor, Inc.
|
19,419,892 | $87,195,315 | |
| 3 | LASR |
Nlight, Inc.
|
236,991 | $16,499,313 | |
| 4 | ALGM |
Allegro Microsystems, Inc.
This page
|
185,461 | $12,911,794 | |
| 5 | LSCC |
Lattice Semiconductor Corp
|
57,848 | $8,848,430 | |
| 6 | RMBS |
Rambus Inc
|
66,245 | $8,793,361 | |
| 7 | AIP |
Arteris, Inc.
|
160,415 | $7,794,564 | |
| 8 | CEVA |
Ceva Inc
|
6,985 | $329,412 |
All Filings in ALGM
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,911,794 | 185,461 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $6,778,981 | 215,001 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $2,370,427 | 89,857 | Shares | Sole | 2026-02-17 | |
| 2025-03-31 | $803,054 | 31,956 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $4,411,719 | 201,817 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $6,600,307 | 283,275 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $6,195,968 | 219,404 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $4,205,220 | 155,980 | Shares | Sole | 2024-05-15 | |
| No filing history on record for this holder in this stock. | ||||||