Lerner Neil bought CMPX

October 1, 2026 · Form 4 insider transaction

Lerner Neil bought 20,000 shares of Compass Therapeutics, Inc. at $0.92 per share, a transaction worth $18.4K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Acquired (buy-side)
Shares
20,000
Price
$0.92
Total value
$18.4K
Role—
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateOctober 1, 2026
Filing dateOctober 2, 2026
Shares owned after420,000
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

62,500 of the shares represents unvested restricted stock units ("RSU") granted on January 2, 2026. Each RSU represents a contingent right to receive one share of common stock. The award is subject to service-based vesting conditions and vests in four equal annual installments, with the first installment vested on January 2, 2027.

View the original Form 4 on SEC EDGAR