Who owns Photronics (PLAB)?
132 holders named in SEC filings declare between 69.0% and 93.6% of Photronics' shares outstanding, as of Oct 1, 2026. The largest are BlackRock (16.1%), Vanguard (10.0%) and Dimensional (6.2%); the five largest hold 42.0% together. Another 187 institutions hold small positions worth 2.4%. At least 4.1% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 10.1% and sold 11.0% of the shares, a net sale of 0.94%; 53 opened a position, 99 added, 115 reduced and 67 sold out. Biggest buyers: T. Rowe Price (+668,311 shares) and American Century Companies, Inc. (+567,453 shares). Biggest sellers: Janus Henderson (-796,486) and LSV ASSET MANAGEMENT (-697,250). Schedule 13D/G filings since Mar 31, 2026: American Century Investment Management, Inc. crossed 5% (5.7%) on Jun 30, 2026 and Dimensional Fund Advisors LP crossed 5% (6.2%) on Jun 30, 2026. Directors and officers, from their latest Form 4: Constantine S. Macricostas (0.70%), Kang Jyh Lee (0.57%) and George Macricostas (0.57%). Over time, 304 managers declared Photronics in their 13F for Q2 2026, against 203 for Q4 2019: together at most 93.1% of the shares outstanding, against 93.8%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| BlackRock | 13F | 16.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Vanguard | 13F | 10.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Dimensional | 13F | 6.2% | Jun 30, 2026 | Q4 2019 or earlier |
| American Century Companies, Inc. | 13F | 5.7% | Jun 30, 2026 | Q4 2019 or earlier |
| State Street | 13F | 4.0% | Jun 30, 2026 | Q4 2019 or earlier |
| LSV ASSET MANAGEMENT | 13F | 3.7% | Jun 30, 2026 | Q2 2020 |
| Geode Capital | 13F | 3.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Invesco | 13F | 3.1% | Jun 30, 2026 | Q4 2019 or earlier |
| T. Rowe Price | 13F | 2.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Victory Capital Management, Inc. | 13F | 2.5% | Jun 30, 2026 | Q4 2019 or earlier |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 13F | 1.8% | Jun 30, 2026 | Q1 2026 |
| Morgan Stanley | 13F | 1.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Charles Schwab | 13F | 1.6% | Jun 30, 2026 | Q4 2019 or earlier |
| Northern Trust | 13F | 1.5% | Jun 30, 2026 | Q4 2019 or earlier |
| Boston Partners | 13F | 1.1% | Jun 30, 2026 | Q1 2023 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 13F | 0.99% | Jun 30, 2026 | Q4 2019 or earlier |
| EASTERLY INVESTMENT PARTNERS LLC | 13F | 0.79% | Jun 30, 2026 | Q3 2021 |
| AQR | 13F | 0.70% | Jun 30, 2026 | Q4 2019 or earlier |
| Constantine S. Macricostas | Form 4 | 0.70% | Apr 14, 2026 | — |
| UBS | 13F | 0.65% | Jun 30, 2026 | Q4 2019 or earlier |
| BNY | 13F | 0.64% | Jun 30, 2026 | Q4 2019 or earlier |
| HEARTLAND ADVISORS INC | 13F | 0.64% | Jun 30, 2026 | Q4 2019 or earlier |
| SEGALL BRYANT & HAMILL, LLC | 13F | 0.63% | Jun 30, 2026 | Q2 2024 |
| TCW GROUP INC | 13F | 0.60% | Jun 30, 2026 | Q2 2025 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 13F | 0.60% | Jun 30, 2026 | Q4 2019 or earlier |
Photronics institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 203 | 93.8% | $969.4M | 59.8% |
| Q4 2020 | 174 | 87.8% | $627.0M | 59.9% |
| Q4 2021 | 184 | 89.5% | $1.0B | 59.2% |
| Q4 2022 | 243 | 88.5% | $919.4M | 52.4% |
| Q4 2023 | 278 | 89.2% | $1.7B | 49.7% |
| Q4 2024 | 259 | 90.2% | $1.3B | 49.2% |
| Q4 2025 | 307 | 93.3% | $1.8B | 53.7% |
| Q2 2026 | 304 | 93.1% | $1.8B | 51.5% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.