NASDAQ:PLAB

Photronics Stock Insider Trading

Technology > Semiconductors

Buy PLAB

*Your capital is at risk

$32.11

-1.03 (-3.11%)

At Close: Jun 03, 2026

Photronics Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -90.79. In total, the insiders bought 424.35K and sold 766.5K PLAB shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-90.79
● Buy	424.35K shares
● Sell	766.5K shares
41% Buy Activity Negligible or No Correlation
Sell Signal Medium Confidence Apr 08, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -90.79. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Wang Hsueh-chun SVP/coo Ic & Us/eu Mnstrm Ops	C-Suite Officer	10 000 Value: $426.9K
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Macricostas George CEO	CEO / President	109 194 Value: $4.68M
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Macricostas George CEO	CEO / President	5 500 Value: $238.0K
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Macricostas George CEO	CEO / President	6 500 Value: $281.3K
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Zhang Rui Vp, Cao & Corporate Controller	Officer	1 752 Value: $76.2K
Apr 08, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	5 000 Value: $216.4K
Apr 06, 2026 Buy	PHOTRONICS STOCK OPTIONS M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $43.0K
Apr 06, 2026 Buy	COMMON STOCK M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $43.0K
Apr 06, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	5 000 Value: $202.7K
Apr 06, 2026 Buy	PHOTRONICS STOCK OPTIONS M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $43.0K
Apr 02, 2026 Sell	COMMON STOCK G-Gift	Macricostas Constantine S Director	Director	37 000 Value: $0
Apr 01, 2026 Sell	COMMON STOCK G-Gift	Macricostas Constantine S Director	Director	13 000 Value: $0
Apr 01, 2026 Buy	PHOTRONICS STOCK OPTIONS M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $53.8K
Apr 01, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	5 000 Value: $210.0K
Apr 01, 2026 Sell	COMMON STOCK S-Sale	Wang Hsueh-chun SVP/coo Ic & Us/eu Mnstrm Ops	C-Suite Officer	4 100 Value: $172.8K
Apr 01, 2026 Sell	COMMON STOCK S-Sale	Tyson Mitchell G Director	Director	10 000 Value: $423.1K
Apr 01, 2026 Sell	COMMON STOCK S-Sale	Wang Hsueh-chun SVP/coo Ic & Us/eu Mnstrm Ops	C-Suite Officer	4 186 Value: $175.8K
Apr 01, 2026 Sell	COMMON STOCK S-Sale	Wang Hsueh-chun SVP/coo Ic & Us/eu Mnstrm Ops	C-Suite Officer	1 714 Value: $72.2K
Apr 01, 2026 Buy	COMMON STOCK M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $53.8K
Mar 26, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	5 000 Value: $204.0K
Mar 26, 2026 Buy	COMMON STOCK M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $53.8K
Mar 26, 2026 Buy	PHOTRONICS STOCK OPTIONS M-Exempt	Lee Kang Jyh Director	Director	5 000 Value: $53.8K
Mar 23, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	10 000 Value: $390.0K
Mar 19, 2026 Sell	COMMON STOCK S-Sale	Lee Kang Jyh Director	Director	10 000 Value: $358.0K
Feb 09, 2026 Buy	COMMON STOCK A-Award	Rivera Eric President, CFO	CEO / President	22 641 Value: $849.9K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT PHOTRONICS

Photronics, Inc., together with its subsidiaries, engages in the manufacture and sale of photomask products and services in the United States, Taiwan, Korea, Europe, China, and internationally. The company offers photomasks that are used in the manufacture of integrated circuits and flat panel displays (FPDs); and to transfer circuit patterns onto semiconductor wafers, FDP substrates, and other types of electrical and optical components. It sells...

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