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Seizinger Bernd R.'s Form 4 filing

Aptose Biosciences Inc. (APTO) · filed Jul 2, 2026

Accession no.
0000912282-26-000902
Filed
Jul 2, 2026, 11:01 AM ET
Trade date
Jun 30, 2026
Filing delay
2 days
Rule 10b5-1 plan
Not checked

This filing lists 1 non-derivative transaction and 3 derivative transactions. It was filed 2 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Seizinger Bernd R.CIK 0001789042Other: FORMER DIRECTOR

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Jun 30, 2026Common SharesDReturned to the companyDisposed−17,000$1.72−$29,2400Direct

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Jun 30, 2026Common SharesDReturned to the companyDisposed−3,333$0.00$00Direct
Jun 30, 2026Common SharesDReturned to the companyDisposed−100,000$0.00$00Direct
Jun 30, 2026Common SharesDReturned to the companyDisposed−50,000$0.00$00Direct

Footnotes

Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.

Read the original on SEC EDGAR (opens in a new tab)