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Stockfacts

EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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Insider Trades & Whales

Insider trades are parsed from SEC Form 4 filings (first-party). The ownership breakdown below is computed first-hand from SEC 13F-HR + Form 4 (institutions from 13F, insiders from Form 4). For the full filer list and quarter-over-quarter position changes, see the Institutional (13F) tab.

Ownership Breakdown

Insiders 11.80%Institutions 70.41%207 filers

Top Institutions

Form 4 Transactions

50 most recent
DateInsiderTitleCodeSharesPriceValue
Jun 2, 2026Lee HowardDirectorF769$18.4500$14.19K
Jun 1, 2026Deflin GayleDirectorA17,365$0.0000$0.00
Jun 1, 2026Deflin GayleDirectorA8,143$0.0000$0.00
Jun 1, 2026Gaugh David RussellDirectorA17,365$0.0000$0.00
Jun 1, 2026Gaugh David RussellDirectorA8,143$0.0000$0.00
Jun 1, 2026Gerst Diane G.DirectorA17,365$0.0000$0.00
Jun 1, 2026Gerst Diane G.DirectorA8,143$0.0000$0.00
Jun 1, 2026ZASLOFF MICHAEL ADirectorA17,365$0.0000$0.00
Jun 1, 2026ZASLOFF MICHAEL ADirectorA8,143$0.0000$0.00
Jun 1, 2026Lee HowardDirectorA17,365$0.0000$0.00
Jun 1, 2026Lee HowardDirectorA8,143$0.0000$0.00
Jun 1, 2026PRINS RICHARD KDirectorA17,365$0.0000$0.00
Jun 1, 2026PRINS RICHARD KDirectorA8,143$0.0000$0.00
Mar 15, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF2,908$18.1800$52.87K
Mar 15, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF9,784$18.1800$177.87K
Mar 15, 2026PETERS WILLIAM JCFO, EVP & TREASURERF1,973$18.1800$35.87K
Mar 15, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERF1,225$18.1800$22.27K
Mar 15, 2026Liawatidewi YakobEVP CORP ADMIN CENTERF1,033$18.1800$18.78K
Mar 10, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF4,395$18.9100$83.11K
Mar 10, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF14,785$18.9100$279.58K
Mar 10, 2026Liawatidewi YakobEVP CORP ADMIN CENTERF1,870$18.9100$35.36K
Mar 10, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERF2,215$18.9100$41.88K
Mar 10, 2026PETERS WILLIAM JCFO, EVP & TREASURERF3,297$18.9100$62.35K
Mar 9, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERA149,472$0.0000$0.00
Mar 9, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERA372,338$0.0000$0.00
Mar 9, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERA72,462$0.0000$0.00
Mar 9, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERA180,504$0.0000$0.00
Mar 9, 2026Liawatidewi YakobEVP CORP ADMIN CENTERA73,126$0.0000$0.00
Mar 9, 2026Liawatidewi YakobEVP CORP ADMIN CENTERA35,450$0.0000$0.00
Mar 9, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERA81,341$0.0000$0.00
Mar 9, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERA39,432$0.0000$0.00
Mar 9, 2026PETERS WILLIAM JCFO, EVP & TREASURERA121,071$0.0000$0.00
Mar 9, 2026PETERS WILLIAM JCFO, EVP & TREASURERA58,693$0.0000$0.00
Mar 6, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF3,077$19.3400$59.51K
Mar 6, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF7,773$19.3400$150.33K
Mar 6, 2026Liawatidewi YakobEVP CORP ADMIN CENTERF1,144$19.3400$22.12K
Mar 6, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERF1,357$19.3400$26.24K
Mar 6, 2026PETERS WILLIAM JCFO, EVP & TREASURERF2,146$19.3400$41.50K
Mar 4, 2026Liawatidewi YakobEVP CORP ADMIN CENTERF965$19.9600$19.26K
Mar 4, 2026Zhou RongSENIOR EVP, PRODUCTION CENTERF1,124$19.9600$22.43K
Mar 4, 2026PETERS WILLIAM JCFO, EVP & TREASURERF1,744$19.9600$34.81K
Mar 4, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF2,432$19.9600$48.54K
Mar 4, 2026Zhang Jack Y.CEO & CHIEF SCIENTIFIC OFFICERF5,769$19.9600$115.15K
Dec 17, 2025Zhou RongSENIOR EVP, PRODUCTION CENTERM9,787$0.0000$0.00
Dec 17, 2025Zhou RongSENIOR EVP, PRODUCTION CENTERS9,787$26.1959$256.38K
Dec 17, 2025Zhou RongSENIOR EVP, PRODUCTION CENTERM9,787$11.3300$110.89K
Dec 12, 2025Petersen Floyd F.DirectorS2,426$25.9226$62.89K
Dec 11, 2025Petersen Floyd F.DirectorS1,737$25.6880$44.62K
Nov 25, 2025PRINS RICHARD KDirectorM4,179$0.0000$0.00
Nov 25, 2025PRINS RICHARD KDirectorS4,179$27.1006$113.25K