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Home/Insiders/Tappin Matthew

Tappin Matthew

Officer

Officer
Total trades
27
Bought (open market)
$0
Sold (open market)
$412K
Tickers traded
1

12-month activity

Monthly buy vs sell totals from Tappin Matthew's Form 4 filings.

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$170K3
December 2025$0$00
January 2026$0$00
February 2026$0$4K5
March 2026$0$16K6
April 2026$0$00
May 2026$0$00
June 2026$0$02
July 2026$0$8K1
August 2026$0$00
September 2026$0$00

Recent trades

Most recent Form 4 filings by Tappin Matthew.

  • Tappin Matthewsold996 shares ofSTEMat $7.85$8KJul 2Details
  • Tappin Matthewexercised2,750 shares ofSTEMat $7.81$21KJun 30 · filed Jul 2Details
  • Tappin Matthewexercised5,000 shares ofSTEMat $7.81$39KJun 30 · filed Jul 2Details

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
Tappin Matthew
sold
402 shares of
STEM
at $10.83
$4KMar 11 · filed Mar 13Details
  • Tappin Matthewsold655 shares ofSTEMat $11.12$7KMar 10Details
  • Tappin Matthewexercised1,458 shares ofSTEMMar 7 · filed Mar 10Details
  • Tappin Matthewsold185 shares ofSTEMat $10$2KMar 4Details
  • Tappin Matthewsold300 shares ofSTEMat $9.67$3KMar 3 · filed Mar 4Details
  • Tappin Matthewexercised670 shares ofSTEMMar 1 · filed Mar 2Details
  • Tappin Matthewgranted17,200 shares ofSTEMat $0Feb 26 · filed Mar 2Details
  • Tappin Matthewgranted25,800 shares ofSTEMat $0Feb 26 · filed Mar 2Details
  • Tappin Matthewsold366 shares ofSTEMat $11.4$4KFeb 20 · filed Feb 23Details
  • Tappin Matthewtax-withheld522 shares ofSTEMat $11.3$6KFeb 19Details
  • Tappin Matthewexercised1,253 shares ofSTEMFeb 15 · filed Feb 18Details
  • Tappin Matthewsold9,584 shares ofSTEMat $17.7$170KNov 11, 2025 · filed Nov 24, 2025Details
  • Tappin Matthewtax-withheld5,416 shares ofSTEMat $18.27$99KNov 10, 2025 · filed Nov 12, 2025Details
  • Tappin Matthewexercised15,000 shares ofSTEMNov 7, 2025 · filed Nov 12, 2025Details
  • Tappin Matthewgranted10,000 shares ofSTEMat $0Jul 28, 2025 · filed Jul 30, 2025Details
  • Tappin Matthewgranted5,500 shares ofSTEMat $0Jun 30, 2025 · filed Jul 2, 2025Details
  • Tappin Matthewgranted11,000 shares ofSTEMat $0Jun 30, 2025 · filed Jul 2, 2025Details
  • View all 27 trades →