Companies/CA/APS

APTOSE BIOSCIENCES INC.

Ownership & governance

Executives 3Avg age 59Avg tenure 6y
C. Payne
Director of Finance/CFO
Age 63Since 2022-06-26Profile →

Executives3

C. Payne
Director of Finance/CFO
Age 63Since 2022-06-26
Victor Montalvo-Lugo
Chief Tech/Sci/R&D Officer
—Since 2019-10-31
Rafael Bejar
Chief Tech/Sci/R&D Officer
Age 54Since 2019-12-31

Shareholders5

NameStakeShares
HANMI PHARM. CO., LTD.
19.93 %
508,710
Andrew Schwartzberg
7.105 %
181,350
DRW Securities LLC
0.7742 %
19,761
William Rice
0.2406 %
6,140
The Gleason Group, Inc.
0.1648 %
4,206

Catalog · 2026-07-09

Registry officers3

NameRoleSinceShares
C. PayneDirector of Finance/CFO2022-06-26-
Rafael BejarChief Tech/Sci/R&D Officer2019-12-31-
Victor Montalvo-LugoChief Tech/Sci/R&D Officer2019-10-31-

Registry · as of 2026-07-09

Institutional (13F)

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Fund membership

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Street consensus

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Peers