Arkolith/Insider Trading/PLAB

PLAB Insider Trading

Photronics Inc · full profile →Last filing Mar 26, 2026
Net Selling · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$4.7M
4 insiders
Net Insider Flow
-$4.7M
open market, 180d
Reporting Insiders
4
15 P/S transactions
Build

Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Form 4 insider API

Open-market buys and sells, cluster scans, company flows.

insider.transactions

13F holdings API

Owners, holdings, deltas, point-in-time portfolios.

stock.owners

MCP quickstart

Connect an agent, mint a key, make the first call.

/api/mcp

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Mar 26, 2026Lee Kang JyhDirectorSell(S)5K$40.80$204K
Mar 26, 2026Lee Kang JyhDirectorOption exercise(M)5K$10.75$54K
Mar 26, 2026Lee Kang JyhDirectorOption exercise(M)5K—$0
Mar 23, 2026Lee Kang JyhDirectorSell(S)10K$39.00$390K
Mar 19, 2026Lee Kang JyhDirectorSell(S)10K$35.80$358K
Feb 9, 2026Rivera EricPresident, CFOGrant(A)23K—$0
Feb 9, 2026Alesio Todd AnthonySVP, CAOGrant(A)983—$0
Feb 9, 2026Zhang RuiVP, CAO & Corporate ControllerGrant(A)1K—$0
Jan 20, 2026Almeida MichelleDirectorGrant(A)1K—$0
Jan 20, 2026Liao Daniel JLDirectorGrant(A)1K—$0
Jan 16, 2026Park Han KyungSVP & GM of FPD OpsSell(S)6K$34.89$218K
Jan 16, 2026Lee Kang JyhDirectorSell(S)10K$34.51$345K
Jan 15, 2026Lee Kang JyhDirectorSell(S)10K$34.13$341K
Jan 13, 2026Lee Kang JyhDirectorSell(S)10K$34.42$344K
Jan 13, 2026Park Han KyungSVP & GM of FPD OpsSell(S)8K$33.70$253K
Jan 12, 2026Lee Kang JyhDirectorSell(S)10K$33.05$331K
Jan 7, 2026Lee Kang JyhDirectorSell(S)10K$34.83$348K
Jan 6, 2026Tyson Mitchell GDirectorSell(S)5K$35.21$176K
Jan 6, 2026Paladino MaryDirectorSell(S)11K$35.11$395K
Jan 6, 2026Lee Kang JyhDirectorSell(S)10K$35.41$354K
Jan 5, 2026Lee Kang JyhDirectorSell(S)10K$33.90$339K
Jan 3, 2026Macricostas GeorgeCEOGrant(A)177K—$0
Jan 3, 2026Rivera EricEVP, CFOGrant(A)40K—$0
Jan 3, 2026Wang Hsueh-ChunSVP/COO IC & US/EU Mnstrm OpsGrant(A)28K—$0
Jan 3, 2026Park Han KyungSVP & GM of FPD OpsGrant(A)24K—$0
Jan 3, 2026Macricostas Constantine SDirectorGrant(A)1K—$0
Jan 3, 2026Garcia David A.DirectorGrant(A)1K—$0
Jan 3, 2026Lewis Adam MDirectorGrant(A)1K—$0
Jan 3, 2026Tyson Mitchell GDirectorGrant(A)1K—$0
Jan 3, 2026Paladino MaryDirectorGrant(A)1K—$0
Jan 2, 2026Rivera EricEVP, CFOTax withholding(F)1K$33.41$46K
Jan 2, 2026Rivera EricEVP, CFOTax withholding(F)1K$33.41$34K
Jan 2, 2026Rivera EricEVP, CFOTax withholding(F)686$33.41$23K
Jan 2, 2026Rivera EricEVP, CFOTax withholding(F)3K$33.41$99K
Jan 2, 2026Lee Kang JyhDirectorSell(S)9K$33.54$293K
Dec 22, 2025Lee Kang JyhDirectorSell(S)9K$34.31$300K
Dec 15, 2025Lee Kang JyhDirectorOption exercise(M)20K$11.35$227K
Dec 15, 2025Lee Kang JyhDirectorSell(S)20K$36.45$729K
Dec 15, 2025Lee Kang JyhDirectorOption exercise(M)20K—$0
Dec 12, 2025Lee Kang JyhDirectorSell(S)20K$38.53$771K
Dec 12, 2025Park Han KyungSVP & GM of FPD OpsSell(S)14K$37.99$522K
Dec 12, 2025Tyson Mitchell GDirectorSell(S)5K$36.17$181K
Dec 12, 2025Progler Christopher JEVP, Chief Technology OfficerSell(S)25K$35.78$895K
Dec 1, 2025Progler Christopher JEVP, Chief Technology OfficerSell(S)10K$22.52$225K
Oct 14, 2025Rivera EricEVP, CFOGrant(A)882$19.83$17K
Oct 7, 2025Tyson Mitchell GDirectorSell(S)5K$25.04$125K
Oct 6, 2025Lee Kang JyhDirectorSell(S)10K$25.33$253K
Oct 2, 2025Paladino MaryDirectorSell(S)43K$24.00$1.0M
Oct 1, 2025Rivera EricEVP, CFOTax withholding(F)2K—$0
Sep 3, 2025Park Han KyungSVP & GM of FPD OpsSell(S)15K$22.00$330K
Sep 2, 2025Progler Christopher JEVP, Chief Technology OfficerSell(S)10K$21.93$219K
Aug 29, 2025Lee Kang JyhDirectorSell(S)9K$23.20$203K
Jul 28, 2025Progler Christopher JEVP, Chief Technology OfficerBuy(S)10K$21.07$211K
Jul 10, 2025Tyson Mitchell GDirectorSell(S)15K$19.97$300K
Jul 9, 2025Macricostas GeorgeCEOGrant(A)110K—$0
Jul 2, 2025Macricostas Constantine SDirectorSell(S)30K$20.20$596K
Jun 27, 2025Garcia David A.DirectorBuy(P)3K$19.00$50K
Jun 20, 2025Lee Kang JyhDirectorOption exercise(M)5K$12.13$59K
Jun 20, 2025Lee Kang JyhDirectorSell(S)5K$18.35$90K
Jun 20, 2025Lee Kang JyhDirectorOption exercise(M)5K—$0
Jun 18, 2025Lee Kang JyhDirectorOption exercise(M)28K$12.13$341K
Jun 18, 2025Lee Kang JyhDirectorSell(S)28K$18.40$517K
Jun 18, 2025Lee Kang JyhDirectorOption exercise(M)28K—$0
Jun 13, 2025Tyson Mitchell GDirectorGift(G)2K—$0
Apr 17, 2025Fiederowicz Walter MInsiderSell(S)5K$17.79$89K
Apr 15, 2025Fiederowicz Walter MInsiderSell(S)8K$17.87$135K
Apr 9, 2025Fiederowicz Walter MInsiderSell(S)7K$18.88$132K
Apr 3, 2025Fiederowicz Walter MInsiderSell(S)5K$19.16$96K
Mar 28, 2025Rivera EricEVP, CFOGrant(A)20K—$0
Mar 26, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)10K$21.60$216K
Mar 25, 2025Fiederowicz Walter MDirectorSell(S)10K$21.63$216K
Mar 24, 2025Progler Christopher JEVP, Chief Technology OfficerBuy(S)10K$21.59$216K
Mar 19, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)10K$21.60$216K
Mar 5, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)10K$20.90$209K
Feb 20, 2025Macricostas Constantine SDirectorGift(G)1K—$0
Feb 13, 2025Liao Daniel JLDirectorGrant(A)8K—$0
Feb 13, 2025Macricostas Constantine SDirectorGrant(A)8K—$0
Feb 13, 2025Garcia David A.DirectorGrant(A)8K—$0
Feb 13, 2025Paladino MaryDirectorGrant(A)8K—$0
Feb 13, 2025Lewis Adam MDirectorGrant(A)8K—$0
Feb 13, 2025Tyson Mitchell GDirectorGrant(A)8K—$0
Feb 13, 2025Fiederowicz Walter MDirectorGrant(A)8K—$0
Jan 27, 2025Macricostas GeorgeEXECUTIVE CHAIRMANGrant(A)70K—$0
Jan 17, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)10K$24.47$245K
Jan 16, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)9K$24.40$214K
Jan 7, 2025Park Han KyungSVP & GM of FPD OpsSell(S)11K$24.63$277K
Jan 6, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERSell(S)10K$25.02$250K
Jan 6, 2025Park Han KyungSVP & GM of FPD OpsSell(S)11K$24.29$273K
Jan 3, 2025Progler Christopher JEVP, Chief Technology OfficerTax withholding(F)4K$24.12$95K
Jan 3, 2025Progler Christopher JEVP, Chief Technology OfficerTax withholding(F)5K$24.12$119K
Jan 3, 2025Progler Christopher JEVP, Chief Technology OfficerTax withholding(F)4K$24.12$95K
Jan 3, 2025Progler Christopher JEVP, Chief Technology OfficerGrant(A)28K—$0
Jan 3, 2025Rivera EricEVP, CFOTax withholding(F)2K$24.12$37K
Jan 3, 2025Rivera EricEVP, CFOTax withholding(F)785$24.12$19K
Jan 3, 2025Rivera EricEVP, CFOGrant(A)38K—$0
Jan 3, 2025Rivera EricEVP, CFOTax withholding(F)1K$24.12$25K
Jan 3, 2025Lee Kang JyhCHIEF EXECUTIVE OFFICERGrant(A)80K—$0
Jan 3, 2025Wang Hsueh-ChunSVP/COO IC & US/EU Mnstrm OpsGrant(A)38K—$0
Jan 3, 2025Fiederowicz Walter MDirectorSell(S)10K$24.13$241K
Jan 3, 2025Park Han KyungSVP & GM of FPD OpsGrant(A)38K—$0

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).