Position in AMBA
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$6,863,742
+$2,622,460 QoQ
Shares Held
79,997
-2.9% QoQ
Ownership
0.182%
of shares outstanding
% of Portfolio
0.92%
of 13F equity value
Holder Rank
#61
of 335 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority
Sole 70%
Shared 0%
None 30%
Common Shares in AMBA Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $27,779,629 across 12 Semiconductor Equipment & Materials names. AMBA ranks #3 (24.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | COHU |
Cohu Inc
|
131,170 | $9,694,774 | |
| 2 | ASML |
Asml Holding NV
|
3,538 | $7,038,638 | |
| 3 | AMBA |
Ambarella Inc
This page
|
79,997 | $6,863,742 | |
| 4 | ACMR |
ACM Research, Inc.
|
11,770 | $1,493,495 | |
| 5 | ASYS |
Amtech Systems Inc
|
37,761 | $871,523 | |
| 6 | ACLS |
Axcelis Technologies Inc
|
3,350 | $634,657 | |
| 7 | CAMT |
Camtek Ltd
|
2,943 | $480,062 | |
| 8 | TRT |
Trio-Tech International
|
22,115 | $272,456 |
All Filings in AMBA
Export CSV
9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,863,742 | 79,997 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $4,241,282 | 82,387 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $5,939,438 | 83,843 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $7,043,247 | 85,352 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $5,581,527 | 84,479 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $4,350,072 | 86,431 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $6,584,570 | 90,522 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $4,818,767 | 85,424 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $4,705,465 | 87,219 | Shares | Sole | 2024-08-12 | |
| No filing history on record for this holder in this stock. | ||||||