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. 97.6% of the shares are freely tradable; institutional investors hold 98.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.08 | 9,486,185 | +1.1 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 6.17 | 3,642,585 | -8.1 | 06/30/2026 |
| American Century Companies Inc | 5.74 | 3,387,380 | +20.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.04 | 2,972,130 | +4.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.24 | 2,501,565 | -0.1 | 06/30/2026 |
| State Street Corp | 3.97 | 2,339,871 | +4.5 | 06/30/2026 |
| LSV Asset Management | 3.70 | 2,185,268 | -24.2 | 06/30/2026 |
| Geode Capital Management, LLC | 3.67 | 2,167,677 | +16.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.95 | 3,508,959 | +0.0 | 09/30/2026 |
| Avantis US Small Cap Value ETF | 4.72 | 2,785,816 | +0.2 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Lee Kang Jyh | Director | 337,350 | 9,310,860 $ | Sep 29, 2026 | direct |
| Rivera Eric | President, CFO | 133,276 | 3,678,418 $ | Oct 1, 2026 | direct |
| Park Han Kyung | SVP & GM of FPD Ops | 66,000 | 1,821,600 $ | Sep 25, 2026 | direct |
| Zhang Rui | VP, CAO & Corporate Controller | 26,687 | 736,561 $ | Oct 1, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | Rivera Eric | President, CFO | Other | 2,897 | 30.83 | 89,315 |
| Oct 1, 2026 | Zhang Rui | VP, CAO & Corporate Controller | Other | 392 | 30.83 | 12,085 |
| Sep 29, 2026 | Lee Kang Jyh | Director | Sell | 10,000 | 30.75 | 307,500 |
| Sep 25, 2026 | Park Han Kyung | SVP & GM of FPD Ops | Sell | 9,500 | 30.37 | 288,515 |
| Sep 24, 2026 | Lee Kang Jyh | Director | Sell | 7,500 | 29.50 | 221,250 |
| Sep 22, 2026 | Lee Kang Jyh | Director | Sell | 10,000 | 29.70 | 297,000 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 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.