SEC Form 4 · Updated Daily

ANY

— SPHERE 3D CORP. Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
Block Joel M	Director · Officer	1,029,476	2026-09-08	A
Trompeter Patricia	Director · Officer	532,187	2024-12-13	S
Kalbfleisch Kurt L.	Officer	443,003	2026-09-02	M
Gates Nicholas Ray	Director	189,888	2026-09-08	A
Hanley Timothy P.	Director	115,934	2026-09-08	A
Harnett Sue	Director	106,675	2026-06-01	M
Reppas Tiah Norton	Officer	78,236	2026-06-08	A
McEwan Duncan J	Director	74,074	2026-06-01	M
Dent Marcus E	Director	60,210	2026-06-08	A

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-09-08	Block Joel M	Grant / award (derivative)	166,666	—	166,666
2026-09-08	Block Joel M	Grant / award	166,666	$3.00	1,029,476
2026-09-08	Gates Nicholas Ray	Grant / award (derivative)	133,333	—	133,333
2026-09-08	Gates Nicholas Ray	Grant / award	133,333	$3.00	189,888
2026-09-08	Hanley Timothy P.	Grant / award (derivative)	33,333	—	33,333
2026-09-08	Hanley Timothy P.	Grant / award	33,333	$3.00	115,934
2026-09-02	Kalbfleisch Kurt L.	Option exercise (derivative)	17,188	$0.00	43,749
2026-09-02	Kalbfleisch Kurt L.	Option exercise	17,188	$0.00	443,003
2026-06-08	Block Joel M	Grant / award	500,000	$0.00	862,810
2026-06-08	Dent Marcus E	Grant / award	50,000	$0.00	60,210
2026-06-08	Gates Nicholas Ray	Grant / award	50,000	$0.00	56,555
2026-06-08	Hanley Timothy P.	Grant / award	50,000	$0.00	82,601
2026-06-08	Kalbfleisch Kurt L.	Grant / award	250,000	$0.00	425,815
2026-06-08	Reppas Tiah Norton	Grant / award	30,000	$0.00	78,236
2026-06-01	Harnett Sue	Option exercise (derivative)	74,074	—	0
2026-06-01	Harnett Sue	Option exercise	74,074	—	106,675
2026-06-01	McEwan Duncan J	Option exercise (derivative)	74,074	$0.00	0
2026-06-01	McEwan Duncan J	Option exercise	74,074	—	74,074
2026-06-01	Reppas Tiah Norton	Option exercise (derivative)	56,250	—	33,750
2026-06-01	Reppas Tiah Norton	Tax withholding	8,700	$4.25	48,236
2026-06-01	Reppas Tiah Norton	Tax withholding	1,498	$4.04	56,936
2026-06-01	Reppas Tiah Norton	Tax withholding	10,200	$4.41	58,434
2026-06-01	Reppas Tiah Norton	Option exercise	56,250	$0.00	68,634
2026-06-01	Kalbfleisch Kurt L.	Option exercise (derivative)	159,375	—	60,937
2026-06-01	Kalbfleisch Kurt L.	Tax withholding	7,000	$4.15	175,815
2026-06-01	Kalbfleisch Kurt L.	Tax withholding	50,000	$3.06	182,815
2026-06-01	Kalbfleisch Kurt L.	Option exercise	159,375	$0.00	232,815
2026-05-29	Harnett Sue	Option exercise (derivative)	12,630	—	74,074
2026-05-29	Harnett Sue	Option exercise	12,630	—	32,601
2026-05-29	Hanley Timothy P.	Option exercise (derivative)	12,630	—	74,074
2026-05-29	Hanley Timothy P.	Option exercise	12,630	—	32,601
2026-05-20	Kalbfleisch Kurt L.	Option exercise (derivative)	8,985	—	220,312
2026-05-20	Kalbfleisch Kurt L.	Option exercise	8,985	—	73,440
2026-03-13	Kalbfleisch Kurt L.	Open-market sale	9,800	$1.59	64,455
2026-03-12	Kalbfleisch Kurt L.	Option exercise (derivative)	18,358	—	229,297
2026-03-12	Kalbfleisch Kurt L.	Option exercise	18,358	—	74,255
2026-03-12	Reppas Tiah Norton	Open-market sale	6,250	$1.61	12,384
2026-03-11	Reppas Tiah Norton	Option exercise (derivative)	16,250	—	90,000
2026-03-11	Reppas Tiah Norton	Option exercise	16,250	—	18,634
2026-03-04	Reppas Tiah Norton	Grant / award (derivative)	50,000	—	106,250

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.