United States Semiconductors & Semiconductor Equipment

Photronics Inc (PLAB)

Track

Over the past 90 days, Photronics Inc. insiders have engaged in significant selling activity, totaling approximately $1.5 million in net sales. These transactions occurred amid a 38.5% decline in stock price and followed a recent earnings report that missed expectations by 20.75%. No insider buying activity was recorded during this period.
Ticker: PLAB Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Photronics Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
ZHANG RUI
VP, CAO & Corporate Controller
2 sales — total 425,530 USD
Sale 17 Apr 2026
Value US$46,361.95 | Price 336.70 | Shares 9,316
Proposed sale 17 Apr 2026
Value US$441,069.58 | Price 173.29 | Shares 73,413
Proposed sale 17 Apr 2026
Value US$3,284,639.34 | Price 375.24 | Shares 45,137
Sale 16 Apr 2026
Value US$458,000.00 | Price 45.80 | Shares 10,000
Sale 16 Apr 2026
Value US$460,500.00 | Price 46.05 | Shares 10,000
Proposed sale 16 Apr 2026
Value US$458,000.00 | Price 45.80 | Shares 10,000
Proposed sale 16 Apr 2026
Value US$460,511.48 | Price 46.05 | Shares 10,000
Sale 15 Apr 2026
Value US$451,000.00 | Price 45.10 | Shares 10,000
Proposed sale 15 Apr 2026
Value US$451,000.00 | Price 45.10 | Shares 10,000
Sale 14 Apr 2026
Value US$872,025.00 | Price 45.30 | Shares 19,250
Proposed sale 14 Apr 2026
Value US$872,110.35 | Price 45.30 | Shares 19,250
Sale 14 Apr 2026
Value US$2,267,500.00 | Price 45.35 | Shares 50,000
Proposed sale 14 Apr 2026
Value US$2,285,500.00 | Price 45.71 | Shares 50,000
Sale 13 Apr 2026
Value US$225,000.00 | Price 45.00 | Shares 5,000
Proposed sale 13 Apr 2026
Value US$225,000.00 | Price 45.00 | Shares 5,000
Sale 13 Apr 2026
Value US$44,770.00 | Price 44.77 | Shares 1,000
Proposed sale 13 Apr 2026
Value US$44,770.00 | Price 44.77 | Shares 1,000
Sale 9 Apr 2026
Value US$525,468.75 | Price 44.25 | Shares 11,875
Proposed sale 9 Apr 2026
Value US$525,483.31 | Price 44.25 | Shares 11,875
Sale 9 Apr 2026
Value US$1,787,940.00 | Price 44.00 | Shares 40,635
Sale 9 Apr 2026
Value US$38,808.00 | Price 44.00 | Shares 882
Proposed sale 9 Apr 2026
Value US$1,826,748.00 | Price 44.00 | Shares 41,517
Sale 9 Apr 2026
Value US$220,000.00 | Price 44.00 | Shares 5,000
Proposed sale 9 Apr 2026
Value US$220,000.00 | Price 44.00 | Shares 5,000
Sale 8 Apr 2026
Value US$4,684,422.60 | Price 42.90 | Shares 109,194
Sale 8 Apr 2026
Value US$238,040.00 | Price 43.28 | Shares 5,500
Sale 8 Apr 2026
Value US$281,255.00 | Price 43.27 | Shares 6,500
Sale 8 Apr 2026
Value US$76,212.00 | Price 43.50 | Shares 1,752
Proposed sale 8 Apr 2026
Value US$76,212.00 | Price 43.50 | Shares 1,752
Sale 8 Apr 2026
Value US$426,900.00 | Price 42.69 | Shares 10,000
Proposed sale 8 Apr 2026
Value US$426,897.26 | Price 42.69 | Shares 10,000
Sale 8 Apr 2026
Value US$216,350.00 | Price 43.27 | Shares 5,000
Proposed sale 8 Apr 2026
Value US$216,350.00 | Price 43.27 | Shares 5,000
Proposed sale 8 Apr 2026
Value US$4,756,490.64 | Price 43.56 | Shares 109,194
Proposed sale 8 Apr 2026
Value US$240,000.00 | Price 43.64 | Shares 5,500
Sale 6 Apr 2026
Value US$202,650.00 | Price 40.53 | Shares 5,000
Proposed sale 6 Apr 2026
Value US$202,657.00 | Price 40.53 | Shares 5,000
Sale 1 Apr 2026
Value US$423,100.00 | Price 42.31 | Shares 10,000
Proposed sale 1 Apr 2026
Value US$423,106.16 | Price 42.31 | Shares 10,000
Sale 1 Apr 2026
Value US$72,245.10 | Price 42.15 | Shares 1,714
Sale 1 Apr 2026
Value US$172,774.00 | Price 42.14 | Shares 4,100
Sale 1 Apr 2026
Value US$175,812.00 | Price 42.00 | Shares 4,186
Proposed sale 1 Apr 2026
Value US$420,841.14 | Price 42.08 | Shares 10,000
Sale 1 Apr 2026
Value US$210,000.00 | Price 42.00 | Shares 5,000
Sale 1 Apr 2026
Value US$210,000.00 | Price 42.00 | Shares 5,000
Proposed sale 1 Apr 2026
Value US$210,000.00 | Price 42.00 | Shares 5,000
Sale 26 Mar 2026
Value US$204,000.00 | Price 40.80 | Shares 5,000
Proposed sale 26 Mar 2026
Value US$204,000.00 | Price 40.80 | Shares 5,000
Proposed sale 26 Mar 2026
Value US$280,345.00 | Price 43.13 | Shares 6,500
Sale 23 Mar 2026
Value US$390,000.00 | Price 39.00 | Shares 10,000
Proposed sale 23 Mar 2026
Value US$390,000.00 | Price 39.00 | Shares 10,000
Sale 19 Mar 2026
Value US$358,000.00 | Price 35.80 | Shares 10,000
Proposed sale 19 Mar 2026
Value US$358,024.17 | Price 35.80 | Shares 10,000
Sale 16 Jan 2026
Value US$345,100.00 | Price 34.51 | Shares 10,000
Proposed sale 16 Jan 2026
Value US$345,090.55 | Price 34.51 | Shares 10,000
Sale 16 Jan 2026
Value US$218,062.50 | Price 34.89 | Shares 6,250
Proposed sale 16 Jan 2026
Value US$218,062.50 | Price 34.89 | Shares 6,250
Sale 15 Jan 2026
Value US$341,300.00 | Price 34.13 | Shares 10,000
Proposed sale 15 Jan 2026
Value US$341,360.00 | Price 34.14 | Shares 10,000
Sale 13 Jan 2026
Value US$252,750.00 | Price 33.70 | Shares 7,500
Proposed sale 13 Jan 2026
Value US$252,750.00 | Price 33.70 | Shares 7,500
Sale 13 Jan 2026
Value US$344,200.00 | Price 34.42 | Shares 10,000
Proposed sale 13 Jan 2026
Value US$344,156.58 | Price 34.42 | Shares 10,000
Proposed sale 13 Jan 2026
Value US$2,411,855.34 | Price 33.23 | Shares 72,591
Sale 12 Jan 2026
Value US$330,500.00 | Price 33.05 | Shares 10,000
Proposed sale 12 Jan 2026
Value US$330,500.00 | Price 33.05 | Shares 10,000
Sale 7 Jan 2026
Value US$348,300.00 | Price 34.83 | Shares 10,000
Proposed sale 7 Jan 2026
Value US$348,285.03 | Price 34.83 | Shares 10,000
Sale 6 Jan 2026
Value US$176,050.00 | Price 35.21 | Shares 5,000
Proposed sale 6 Jan 2026
Value US$176,050.00 | Price 35.21 | Shares 5,000
Sale 6 Jan 2026
Value US$394,987.50 | Price 35.11 | Shares 11,250
Proposed sale 6 Jan 2026
Value US$395,025.77 | Price 35.11 | Shares 11,250
Sale 6 Jan 2026
Value US$354,100.00 | Price 35.41 | Shares 10,000
Proposed sale 6 Jan 2026
Value US$354,058.32 | Price 35.41 | Shares 10,000
Sale 5 Jan 2026
Value US$339,000.00 | Price 33.90 | Shares 10,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-04-21 2026-04-17 S Sale
ZHANG RUI

VP, CAO & Corporate Controller

Officer
9,316 +32.2%
336.70
US$46,362 		9,316 +32.2% 336.70 US$46,362
2026-04-17 2026-04-17 PrS Proposed sale
1.3
Paladino Mary

Director

Non-Executive Director
45,137
375.24
US$3,284,639 		45,137 375.24 US$3,284,639
2026-04-17 2026-04-17 PrS Proposed sale
ZHANG RUI

Officer

Officer
73,413
173.29
US$441,070 		73,413 173.29 US$441,070
2026-04-20 2026-04-16 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.7%
45.80
US$458,000 		10,000 -2.7% 45.80 US$458,000
2026-04-20 2026-04-16 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.7%
46.05
US$460,500 		10,000 -2.7% 46.05 US$460,500
2026-04-16 2026-04-16 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
45.80
US$458,000 		10,000 45.80 US$458,000
2026-04-16 2026-04-16 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
46.05
US$460,511 		10,000 46.05 US$460,511
2026-04-17 2026-04-15 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.6%
45.10
US$451,000 		10,000 -2.6% 45.10 US$451,000
2026-04-15 2026-04-15 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
45.10
US$451,000 		10,000 45.10 US$451,000
2026-04-16 2026-04-14 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
19,250 -14.5%
45.30
US$872,025 		19,250 -14.5% 45.30 US$872,025
2026-04-14 2026-04-14 S Sale
1.8
MACRICOSTAS CONSTANTINE S
Non-Executive Director
50,000 -100.0%
45.35
US$2,267,500 		50,000 -100.0% 45.35 US$2,267,500
2026-04-14 2026-04-14 PrS Proposed sale
Wang Hsueh-Chun

Officer

Officer
19,250
45.30
US$872,110 		19,250 45.30 US$872,110
2026-04-14 2026-04-14 PrS Proposed sale
1.8
Macrcostas Family Foudation, Inc.

Director

Non-Executive Director
50,000
45.71
US$2,285,500 		50,000 45.71 US$2,285,500
2026-04-15 2026-04-13 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
45.00
US$225,000 		5,000 -1.3% 45.00 US$225,000
2026-04-15 2026-04-13 S Sale
Rivera Eric

President, CFO

Officer
1,000 -0.7%
44.77
US$44,770 		1,000 -0.7% 44.77 US$44,770
2026-04-13 2026-04-13 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
45.00
US$225,000 		5,000 45.00 US$225,000
2026-04-13 2026-04-13 PrS Proposed sale
Rivera Eric

Officer

Officer
1,000
44.77
US$44,770 		1,000 44.77 US$44,770
2026-04-13 2026-04-09 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
11,875 -8.2%
44.25
US$525,469 		11,875 -8.2% 44.25 US$525,469
2026-04-13 2026-04-09 S Sale
Rivera Eric

President, CFO

Officer
40,635 -23.0%
44.00
US$1,787,940 		40,635 -23.0% 44.00 US$1,787,940
2026-04-13 2026-04-09 S Sale
Rivera Eric

President, CFO

Officer
882 -0.5%
44.00
US$38,808 		882 -0.5% 44.00 US$38,808
2026-04-13 2026-04-09 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
44.00
US$220,000 		5,000 -1.3% 44.00 US$220,000
2026-04-09 2026-04-09 PrS Proposed sale
Wang Hsueh-Chun

Officer

Officer
11,875
44.25
US$525,483 		11,875 44.25 US$525,483
2026-04-09 2026-04-09 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
44.00
US$220,000 		5,000 44.00 US$220,000
2026-04-09 2026-04-09 PrS Proposed sale
Rivera Eric

Officer

Officer
41,517
44.00
US$1,826,748 		41,517 44.00 US$1,826,748
2026-04-10 2026-04-08 S Sale
2.7
MACRICOSTAS GEORGE

CEO

Officer
109,194 -24.6%
42.90
US$4,684,423 		109,194 -24.6% 42.90 US$4,684,423
2026-04-10 2026-04-08 S Sale
2.7
MACRICOSTAS GEORGE

CEO

Officer
5,500 -1.2%
43.28
US$238,040 		5,500 -1.2% 43.28 US$238,040
2026-04-10 2026-04-08 S Sale
2.7
MACRICOSTAS GEORGE

CEO

Officer
6,500 -1.4%
43.27
US$281,255 		6,500 -1.4% 43.27 US$281,255
2026-04-10 2026-04-08 S Sale
ZHANG RUI

VP, CAO & Corporate Controller

Officer
1,752 -5.2%
43.50
US$76,212 		1,752 -5.2% 43.50 US$76,212
2026-04-10 2026-04-08 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
10,000 -6.5%
42.69
US$426,900 		10,000 -6.5% 42.69 US$426,900
2026-04-10 2026-04-08 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
43.27
US$216,350 		5,000 -1.3% 43.27 US$216,350
2026-04-08 2026-04-08 PrS Proposed sale
2.7
George Macricostas 2013 Tr Dtd 12/24/13

Officer

Officer
109,194
43.56
US$4,756,491 		109,194 43.56 US$4,756,491
2026-04-08 2026-04-08 PrS Proposed sale
Wang Hsueh-Chun

Officer

Officer
10,000
42.69
US$426,897 		10,000 42.69 US$426,897
2026-04-08 2026-04-08 PrS Proposed sale
ZHANG RUI

Officer

Officer
1,752
43.50
US$76,212 		1,752 43.50 US$76,212
2026-04-08 2026-04-08 PrS Proposed sale
2.7
George Macricostas

Chairman
5,500
43.64
US$240,000 		5,500 43.64 US$240,000
2026-04-08 2026-04-08 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
43.27
US$216,350 		5,000 43.27 US$216,350
2026-04-08 2026-04-06 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
40.53
US$202,650 		5,000 -1.3% 40.53 US$202,650
2026-04-06 2026-04-06 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
40.53
US$202,657 		5,000 40.53 US$202,657
2026-04-03 2026-04-01 S Sale
3.0
TYSON MITCHELL G
Non-Executive Director
10,000 -23.1%
42.31
US$423,100 		10,000 -23.1% 42.31 US$423,100
2026-04-03 2026-04-01 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
1,714 -1.1%
42.15
US$72,245 		1,714 -1.1% 42.15 US$72,245
2026-04-03 2026-04-01 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
4,100 -2.6%
42.14
US$172,774 		4,100 -2.6% 42.14 US$172,774
2026-04-03 2026-04-01 S Sale
Wang Hsueh-Chun

SVP/COO IC & US/EU Mnstrm Ops

Officer
4,186 -2.5%
42.00
US$175,812 		4,186 -2.5% 42.00 US$175,812
2026-04-03 2026-04-01 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
42.00
US$210,000 		5,000 -1.3% 42.00 US$210,000
2026-04-03 2026-04-01 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
42.00
US$210,000 		5,000 -1.3% 42.00 US$210,000
2026-04-01 2026-04-01 PrS Proposed sale
3.0
TYSON MITCHELL G

Director

Non-Executive Director
10,000
42.31
US$423,106 		10,000 42.31 US$423,106
2026-04-01 2026-04-01 PrS Proposed sale
Wang Hsueh-Chun

Officer

Officer
10,000
42.08
US$420,841 		10,000 42.08 US$420,841
2026-04-01 2026-04-01 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
42.00
US$210,000 		5,000 42.00 US$210,000
2026-03-30 2026-03-26 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
5,000 -1.3%
40.80
US$204,000 		5,000 -1.3% 40.80 US$204,000
2026-03-26 2026-03-26 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
5,000
40.80
US$204,000 		5,000 40.80 US$204,000
2026-03-26 2026-03-26 PrS Proposed sale
2.7
George Macricostas

Chairman
6,500
43.13
US$280,345 		6,500 43.13 US$280,345
2026-03-25 2026-03-23 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.5%
39.00
US$390,000 		10,000 -2.5% 39.00 US$390,000
2026-03-23 2026-03-23 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
39.00
US$390,000 		10,000 39.00 US$390,000
2026-03-24 2026-03-19 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.4%
35.80
US$358,000 		10,000 -2.4% 35.80 US$358,000
2026-03-19 2026-03-19 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
35.80
US$358,024 		10,000 35.80 US$358,024
2026-01-20 2026-01-16 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.4%
34.51
US$345,100 		10,000 -2.4% 34.51 US$345,100
2026-01-20 2026-01-16 S Sale
2.8
Park Han Kyung

SVP & GM of FPD Ops

Officer
6,250 -7.6%
34.89
US$218,062 		6,250 -7.6% 34.89 US$218,062
2026-01-16 2026-01-16 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
34.51
US$345,091 		10,000 34.51 US$345,091
2026-01-16 2026-01-16 PrS Proposed sale
2.8
Park Han Kyung

Officer

Officer
6,250
34.89
US$218,062 		6,250 34.89 US$218,062
2026-01-16 2026-01-15 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.3%
34.13
US$341,300 		10,000 -2.3% 34.13 US$341,300
2026-01-15 2026-01-15 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
34.14
US$341,360 		10,000 34.14 US$341,360
2026-01-20 2026-01-13 S Sale
2.8
Park Han Kyung

SVP & GM of FPD Ops

Officer
7,500 -8.4%
33.70
US$252,750 		7,500 -8.4% 33.70 US$252,750
2026-01-15 2026-01-13 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.3%
34.42
US$344,200 		10,000 -2.3% 34.42 US$344,200
2026-01-13 2026-01-13 PrS Proposed sale
3.5
Progler Christopher J

Former Officer

Officer
72,591
33.23
US$2,411,855 		72,591 33.23 US$2,411,855
2026-01-13 2026-01-13 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
34.42
US$344,157 		10,000 34.42 US$344,157
2026-01-13 2026-01-13 PrS Proposed sale
2.8
Park Han Kyung

Officer

Officer
7,500
33.70
US$252,750 		7,500 33.70 US$252,750
2026-01-14 2026-01-12 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.2%
33.05
US$330,500 		10,000 -2.2% 33.05 US$330,500
2026-01-12 2026-01-12 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
33.05
US$330,500 		10,000 33.05 US$330,500
2026-01-09 2026-01-07 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.2%
34.83
US$348,300 		10,000 -2.2% 34.83 US$348,300
2026-01-07 2026-01-07 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
34.83
US$348,285 		10,000 34.83 US$348,285
2026-01-07 2026-01-06 S Sale
3.0
TYSON MITCHELL G
Non-Executive Director
5,000 -10.4%
35.21
US$176,050 		5,000 -10.4% 35.21 US$176,050
2026-01-07 2026-01-06 S Sale
1.3
Paladino Mary
Non-Executive Director
11,250 -32.1%
35.11
US$394,988 		11,250 -32.1% 35.11 US$394,988
2026-01-07 2026-01-06 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.1%
35.41
US$354,100 		10,000 -2.1% 35.41 US$354,100
2026-01-06 2026-01-06 PrS Proposed sale
3.0
TYSON MITCHELL G

Director

Non-Executive Director
5,000
35.21
US$176,050 		5,000 35.21 US$176,050
2026-01-06 2026-01-06 PrS Proposed sale
1.3
Paladino Mary

Director

Non-Executive Director
11,250
35.11
US$395,026 		11,250 35.11 US$395,026
2026-01-06 2026-01-06 PrS Proposed sale
3.0
Lee Kang Jyh

Officer; Director

Executive Director
10,000
35.41
US$354,058 		10,000 35.41 US$354,058
2026-01-07 2026-01-05 S Sale
3.0
Lee Kang Jyh
Non-Executive Director
10,000 -2.1%
33.90
US$339,000 		10,000 -2.1% 33.90 US$339,000
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