Zhang Yuwen bought STSS
August 23, 2025 · Form 4 insider transaction
Zhang Yuwen bought 500,000 shares of STSS at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 44 days after the transaction.
Direction
Acquired (buy-side)
Shares
500,000
Price
$0.00
Total value
N/A
InsiderZhang Yuwen
Role—
CompanySTSS
SecurityStock Option
Transaction codeA: Grant or award
Transaction dateAugust 23, 2025
Filing dateOctober 6, 2025
Shares owned after500,000
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
On August 23, 2025 the reporting person was granted options under the 2025 Equity Incentive Plan to purchase an aggregate of 500,000 shares of common stock of the Issuer, with the options vesting and becoming exercisable in four equal installments of 125,000 shares each, with 25% vesting every three months, beginning August 23, 2025, and expires on August 22, 2035.