Ball Robert Joseph bought SI

September 14, 2026 · Form 4 insider transaction

Ball Robert Joseph bought 89,233 shares of Shoulder Innovations, Inc. at $2.10 per share, a transaction worth $187.3K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 0 days after the transaction.

Direction
Acquired (buy-side)
Shares
89,233
Price
$2.10
Total value
$187.3K
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateSeptember 14, 2026
Filing dateSeptember 14, 2026
Shares owned after390,999
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

Includes 1,748 shares of Common Stock acquired on June 30, 2026 pursuant to the Issuer's 2025 Employee Stock Purchase Plan.

View the original Form 4 on SEC EDGAR