Photronics Inc. (PLAB) Insider Trading
Directors, officers and holders of more than 10% of PLAB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 193 transactions on file: 0 with code P, 28 with code S and 22 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | Rivera Eric | President, CFO | F Tax Payment | 2,897 | $30.83 | $89,315 |
| Oct 1, 2026 | ZHANG RUI | VP, CAO & Corporate Controller | F Tax Payment | 392 | $30.83 | $12,085 |
| Sep 29, 2026 | Lee Kang Jyh | Director | S Sale | 10,000 | $30.75 | $307,500 |
| Sep 25, 2026 | Park Han Kyung | SVP & GM of FPD Ops | S Sale | 9,500 | $30.37 | $288,515 |
| Sep 24, 2026 | Lee Kang Jyh | Director | S Sale | 7,500 | $29.50 | $221,250 |
| Sep 22, 2026 | Lee Kang Jyh | Director | S Sale | 10,000 | $29.70 | $297,000 |
| Apr 17, 2026 | ZHANG RUI | VP, CAO & Corporate Controller | S Sale | 4,556 | $46.70 | $212,765 |
| Apr 17, 2026 | Paladino Mary | Director | D Disposition | 22,548 | $47.77 | $1,077,118 |
| Apr 16, 2026 | Lee Kang Jyh | Director | S Sale | 10,000 | $46.05 | $460,500 |
| Apr 16, 2026 | Lee Kang Jyh | Director | S Sale | 10,000 | $45.80 | $458,000 |
| Apr 15, 2026 | Lee Kang Jyh | Director | S Sale | 10,000 | $45.10 | $451,000 |
| Apr 14, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 19,250 | $45.30 | $872,025 |
| Apr 14, 2026 | MACRICOSTAS CONSTANTINE S | Director | S Sale | 50,000 | $45.35 | $2,267,500 |
| Apr 13, 2026 | LEWIS ADAM M | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | Not measured | Not measured |
| Apr 13, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | $8.60 | $43,000 |
| Apr 13, 2026 | Rivera Eric | President, CFO | M Exercise | 1,000 | Not measured | Not measured |
| Apr 13, 2026 | MACRICOSTAS CONSTANTINE S | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | TYSON MITCHELL G | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | Rivera Eric | President, CFO | M Exercise | 1,000 | $9.78 | $9,780 |
| Apr 13, 2026 | Garcia David A. | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | Rivera Eric | President, CFO | S Sale | 1,000 | $44.77 | $44,770 |
| Apr 13, 2026 | Almeida Michelle | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | Liao Daniel JL | Director | A Award | 3,722 | Not measured | Not measured |
| Apr 13, 2026 | Lee Kang Jyh | Director | S Sale | 5,000 | $45.00 | $225,000 |
| Apr 9, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | Not measured | Not measured |
| Apr 9, 2026 | Rivera Eric | President, CFO | S Sale | 882 | $44.00 | $38,808 |
| Apr 9, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 11,875 | $44.25 | $525,469 |
| Apr 9, 2026 | Rivera Eric | President, CFO | S Sale | 40,635 | $44.00 | $1,787,940 |
| Apr 9, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | $8.60 | $43,000 |
| Apr 9, 2026 | Lee Kang Jyh | Director | S Sale | 5,000 | $44.00 | $220,000 |
| Apr 8, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 10,000 | $42.69 | $426,900 |
| Apr 8, 2026 | MACRICOSTAS GEORGE | CEO | S Sale | 109,194 | $42.90 | $4,684,423 |
| Apr 8, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | $8.60 | $43,000 |
| Apr 8, 2026 | MACRICOSTAS GEORGE | CEO | S Sale | 5,500 | $43.28 | $238,040 |
| Apr 8, 2026 | Lee Kang Jyh | Director | S Sale | 5,000 | $43.27 | $216,350 |
| Apr 8, 2026 | ZHANG RUI | VP, CAO & Corporate Controller | S Sale | 1,752 | $43.50 | $76,212 |
| Apr 8, 2026 | MACRICOSTAS GEORGE | CEO | S Sale | 6,500 | $43.27 | $281,255 |
| Apr 6, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | Not measured | Not measured |
| Apr 6, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | $8.60 | $43,000 |
| Apr 6, 2026 | Lee Kang Jyh | Director | S Sale | 5,000 | $40.53 | $202,650 |
| Apr 6, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | Not measured | Not measured |
| Apr 2, 2026 | MACRICOSTAS CONSTANTINE S | Director | G Gift | 37,000 | Not measured | Not measured |
| Apr 1, 2026 | TYSON MITCHELL G | Director | S Sale | 10,000 | $42.31 | $423,100 |
| Apr 1, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 4,186 | $42.00 | $175,812 |
| Apr 1, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 4,100 | $42.14 | $172,774 |
| Apr 1, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | S Sale | 1,714 | $42.15 | $72,245 |
| Apr 1, 2026 | Lee Kang Jyh | Director | M Exercise | 5,000 | $10.75 | $53,750 |
| Apr 1, 2026 | Lee Kang Jyh | Director | S Sale | 5,000 | $42.00 | $210,000 |
| Apr 1, 2026 | MACRICOSTAS CONSTANTINE S | Director | G Gift | 13,000 | Not measured | Not measured |
The full Form 4 history is on the PLAB company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.