Position in PLAB
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$31,731,507
+$5,831,859 QoQ
Shares Held
785,239
-3.0% QoQ
Ownership
1.33%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2023
13 quarters on record
Voting authority
Sole 95.02966612712818.ToString("F0")%
Shared 0.ToString("F0")%
None 4.9703338728718265.ToString("F0")%
Common Shares in PLAB Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Mar 31, 2026Boston Partners holds $1,360,317,341 across 9 Semiconductor Equipment & Materials names. PLAB ranks #6 (2.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMAT |
Applied Materials Inc /De
|
2,728,418 | $932,545,986 | |
| 2 | Q |
Qnity Electronics, Inc.
|
1,015,675 | $117,188,580 | |
| 3 | LRCX |
Lam Research Corp
|
447,670 | $95,649,171 | |
| 4 | UCTT |
Ultra Clean Holdings, Inc.
|
1,468,878 | $91,334,832 | |
| 5 | ONTO |
Onto Innovation Inc.
|
181,593 | $37,239,275 | |
| 6 | PLAB |
Photronics Inc
This page
|
785,239 | $31,731,507 | |
| 7 | ACLS |
Axcelis Technologies Inc
|
340,275 | $31,672,796 | |
| 8 | VECO |
Veeco Instruments Inc
|
431,918 | $14,624,742 |
All Filings in PLAB
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $31,731,507 | 785,239 | Shares | Defined | 2026-05-11 | |
| 2025-12-31 | $25,899,648 | 809,364 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $19,219,292 | 837,442 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $15,567,099 | 826,718 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $16,684,416 | 803,681 | Shares | Other | 2025-05-13 | |
| 2024-12-31 | $18,834,782 | 799,439 | Shares | Other | 2025-02-11 | |
| 2024-09-30 | $13,623,372 | 550,217 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $14,209,450 | 575,981 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $17,007,489 | 600,547 | Shares | Defined | 2024-05-28 | |
| 2023-12-31 | $19,635,328 | 625,927 | Shares | Other | 2024-02-07 | |
| 2023-09-30 | $3,612,435 | 178,745 | Shares | Other | 2023-11-08 | |
| 2023-06-30 | $3,538,180 | 137,192 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $2,405,840 | 145,105 | Shares | Defined | 2023-05-09 | |
| No filing history on record for this holder in this stock. | ||||||