Photronics Inc
Ownership
Ownership Structure
Who owns Photronics Inc (PLAB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.5% of the shares are freely tradable; institutional investors hold 98.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.13 | 9,387,060 | +6.3 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 6.26 | 3,642,585 | -8.1 | 06/30/2026 |
| American Century Companies Inc | 5.82 | 3,387,380 | +20.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.89 | 2,844,737 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.30 | 2,503,091 | +0.0 | 03/31/2026 |
| State Street Corp | 3.85 | 2,239,770 | -0.2 | 03/31/2026 |
| LSV Asset Management | 3.76 | 2,185,268 | -24.2 | 06/30/2026 |
| Geode Capital Management, LLC | 3.19 | 1,854,603 | +1.4 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.18 | 3,596,055 | +0.0 | 08/31/2026 |
| Avantis US Small Cap Value ETF | 4.59 | 2,671,684 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.