PLAB
PHOTRONICS INC
Semiconductors & Related DevicesNasdaqLarge accelerated filer
Total Trades
102
Buys
1
Sells
73
Largest Trade
N/A
Insiders
12
Institutional Funds
256
Inst. Value
$1M+
Activist Filings
11
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Lee Kang Jyh | Director | SELL | $100K–$500K | 10K | $34.51 | Jan 21, 2026 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $100K–$500K | 14K | $34.24 | Jan 20, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 10K | $34.13 | Jan 16, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 10K | $34.42 | Jan 15, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 10K | $33.05 | Jan 14, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 10K | $34.83 | Jan 10, 2026 |
| Lee Kang Jyh | Director | SELL | $500K+ | 20K | $34.66 | Jan 8, 2026 |
| Paladino Mary | Director | GRANT | N/A | 1K | — | Jan 8, 2026 |
| Paladino Mary | Director | SELL | $100K–$500K | 11K | $35.11 | Jan 8, 2026 |
| TYSON MITCHELL G | Director | SELL | $100K–$500K | 5K | $35.21 | Jan 8, 2026 |
| TYSON MITCHELL G | Director | GRANT | N/A | 1K | — | Jan 8, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 9K | $33.54 | Jan 7, 2026 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 9K | $34.31 | Dec 24, 2025 |
| Progler Christopher J | CTO | SELL | $500K+ | 25K | $35.78 | Dec 17, 2025 |
| TYSON MITCHELL G | Director | SELL | $100K–$500K | 5K | $36.17 | Dec 17, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $500K+ | 14K | $37.99 | Dec 17, 2025 |
| Lee Kang Jyh | Director | SELL | $1M+ | 40K | $37.49 | Dec 16, 2025 |
| Lee Kang Jyh | Director | EXERCISE | $100K–$500K | 20K | $11.35 | Dec 16, 2025 |
| Progler Christopher J | CTO | SELL | $100K–$500K | 10K | $22.52 | Dec 3, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $100K–$500K | 15K | $22.00 | Sep 5, 2025 |
| Progler Christopher J | CTO | SELL | $100K–$500K | 10K | $21.93 | Sep 4, 2025 |
| Lee Kang Jyh | Director | SELL | $100K–$500K | 9K | $23.20 | Sep 3, 2025 |
| Progler Christopher J | CTO | SELL | $100K–$500K | 10K | $21.07 | Jul 29, 2025 |
| TYSON MITCHELL G | Director | SELL | $100K–$500K | 15K | $19.97 | Jul 11, 2025 |
| MACRICOSTAS CONSTANTINE S | Director | SELL | $500K+ | 30K | $20.20 | Jul 3, 2025 |
| Garcia David A. | Director | BUY | $50K–$100K | 3K | $19.00 | Jun 30, 2025 |
| Lee Kang Jyh | Director | EXERCISE | $50K–$100K | 5K | $12.13 | Jun 24, 2025 |
| Lee Kang Jyh | Director | SELL | $50K–$100K | 5K | $18.35 | Jun 24, 2025 |
| Lee Kang Jyh | Director | EXERCISE | $100K–$500K | 28K | $12.13 | Jun 20, 2025 |
| Lee Kang Jyh | Director | SELL | $500K+ | 28K | $18.40 | Jun 20, 2025 |
| Progler Christopher J | CTO | SELL | $100K–$500K | 10K | $21.59 | Apr 29, 2025 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 20K | $21.60 | Apr 29, 2025 |
| FIEDEROWICZ WALTER M | Insider | SELL | $100K–$500K | 13K | $17.84 | Apr 17, 2025 |
| FIEDEROWICZ WALTER M | Insider | SELL | $100K–$500K | 7K | $18.88 | Apr 10, 2025 |
| FIEDEROWICZ WALTER M | Insider | SELL | $50K–$100K | 5K | $19.16 | Apr 4, 2025 |
| FIEDEROWICZ WALTER M | Director | SELL | $100K–$500K | 10K | $21.63 | Mar 27, 2025 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 19K | $24.44 | Jan 21, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $100K–$500K | 11K | $24.63 | Jan 9, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | GRANT | N/A | 38K | — | Jan 7, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $100K–$500K | 11K | $24.29 | Jan 7, 2025 |
| FIEDEROWICZ WALTER M | Director | SELL | $100K–$500K | 10K | $24.13 | Jan 7, 2025 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 10K | $25.02 | Jan 7, 2025 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 18K | $24.10 | Jan 6, 2025 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | GRANT | N/A | 80K | — | Jan 6, 2025 |
| Park Han Kyung | SVP & GM of FPD Ops | SELL | $100K–$500K | 11K | $23.80 | Dec 27, 2024 |
| FIEDEROWICZ WALTER M | Director | SELL | $100K–$500K | 10K | $24.01 | Dec 27, 2024 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 18K | $24.00 | Dec 27, 2024 |
| LEWIS ADAM M | Director | SELL | $100K–$500K | 20K | $24.11 | Dec 24, 2024 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 9K | $24.33 | Dec 24, 2024 |
| Lee Kang Jyh | CHIEF EXECUTIVE OF… | EXERCISE | $100K–$500K | 30K | $8.23 | Dec 20, 2024 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 256 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 3.9M | $1M+ | SH |
| LSV ASSET MANAGEMENT | 2.9M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 2.5M | $1M+ | SH |
| STATE STREET CORP | 2.2M | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 2.1M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.0M | $1M+ | SH |
| Boston Partners | 790K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 535K | $1M+ | SH |
| EASTERLY INVESTMENT PARTNERS LLC | 423K | $1M+ | SH |
| HEARTLAND ADVISORS INC | 385K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 384K | $1M+ | SH |
| PRINCIPAL FINANCIAL GROUP INC | 362K | $1M+ | SH |
| NORGES BANK | 361K | $1M+ | SH |
| Walleye Trading LLC | 353K | $1M+ | SH |
| DENALI ADVISORS LLC | 313K | $1M+ | SH |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 285K | $1M+ | SH |
| PEAK6 LLC | 259K | $1M+ | SH (Call) |
| Cambria Investment Management, L.P. | 241K | $1M+ | SH |
| Bank of New York Mellon Corp | 208K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Mar 5, 2026
10.1%
5.8M shares
SC 13G/A · Jul 29, 2025
9.9%
6.0M shares
SC 13G/A · Apr 29, 2025
15.0%
9.5M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
8.7%
5.4M shares
SC 13G/A · Jan 30, 2024
0.0%
0 shares
SC 13G/A · Jan 22, 2024
16.6%
10.4M shares
SC 13G · Mar 16, 2023
5.0%
3.1M shares
Dimensional Fund Advisors LP 30-0447847
SC 13G/A · Feb 10, 2023
7.2%
4.4M shares
SC 13G/A · Jan 23, 2023
17.2%
10.6M shares
SC 13G/A · Jan 27, 2022
16.0%
9.7M shares
SC 13G/A · Jan 25, 2022
16.0%
9.7M shares