STERN ADAM K bought MTNB

October 31, 2025 · Form 4 insider transaction

STERN ADAM K bought 92,100 shares of MTNB at $0.64 per share, a transaction worth $59.4K. The trade was recorded as exercise of in-the-money option and disclosed on an SEC Form 4, filed 286 days after the transaction.

Direction
Acquired (buy-side)
Shares
92,100
Price
$0.64
Total value
$59.4K
RoleDirector
CompanyMTNB
SecurityCommon Stock, par value $0.0001 per share
Transaction codeX: Exercise of in-the-money option
Transaction dateOctober 31, 2025
Filing dateAugust 13, 2026
Shares owned after113,450
OwnershipIndirect
10b5-1 planNo
AmendedNo

Footnotes

On October 16, 2025, SternAegis Ventures, LLC Defined Benefit Plan for the Benefit of Adam K Stern received 800,000 Warrants to purchase Common Stock and 265 shares of Series C Convertible Preferred Stock in connection with a settlement agreement.; On July 10, 2026, the Registrant entered into inducement offer letter agreements with certain Reporting Persons, pursuant to which such Reporting Persons agreed to exercise for cash all of their outstanding warrants at the current exercise price of $0.35 per share in consideration for the Registrant's agreement to issue, in a private placement, new unregistered common stock purchase warrants (the "New Warrants"). The Registrant is required to obtain stockholder approval ("Inducement Stockholder Approval") for the issuance of the shares of common stock underlying the New Warrants. The New Warrants will be exercisable beginning on the date Inducement Stockholder Approval is received at an exercise price of $0.35 per share and will expire on the five-year anniversary of the date Inducement Stockholder Approval is received.

View the original Form 4 on SEC EDGAR