SCHEDULE 13D Filed 2026-07-31 Event 2026-07-29 SEC 0000912282-26-001018 →

Endeavor Blockchain, LLC → Sphere 3D Corp. DRK

Stake: 6.50% Shares: 500,000 CUSIP: 84841L506 Class: Common Shares, no par value

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 16/100 · Filer 90d Win Rate: 25% · Hist. 90d Edge: -22.5%

Filer track record (8 filings): 25% 90d win rate, -22.5% 90d edge
Material 8-K governance/transaction event (Item 5.02 / 1.01 / 2.01) within ±30d

Item 4 — Purpose of Transaction

The Reporting Persons purchased the Shares based on the Reporting Person's belief that when purchased, the Shares were undervalued and represented an attractive investment opportunity. Depending upon overall market conditions other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable. The Reporting Persons intend to engage with the Issuer's management and Board of Directors regarding opportunities for value creation.

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

11 13D/G filings on this issuer

10 other filings besides this one

Filer Track Record

11 filings by this filer

10 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 1.00

44,746 shares short · -8.8% vs prior

Other 13D/G Filings on Sphere 3D Corp.

Filed	Form	Filer	Stake	Shares
2026-10-06	SCHEDULE 13D	Block Joel M	7.60%	821,142	view →
2026-08-26	SCHEDULE 13D/A	Endeavor Blockchain, LLC	—	300,000	view →
2026-07-20	SCHEDULE 13G	Qu Jialin (Gavin)	—	—	view →
2026-07-08	SCHEDULE 13G	Masiero Thomas	—	—	view →
2019-07-12	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →
2019-05-17	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →
2018-05-02	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →
2018-04-18	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →
2018-04-03	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →
2018-01-03	SC	CYRUS CAPITAL PARTNERS, L.P.	—	—	view →

Other Filings by Endeavor Blockchain, LLC

Filed	Form	Issuer	Stake	Shares
2026-09-28	SCHEDULE 13D/A	Big Digital Energy, Inc.	44.30%	2,822,294	view →
2026-08-26	SCHEDULE 13D/A	Sphere 3D Corp.	—	300,000	view →
2026-07-10	SCHEDULE 13D/A	Big Digital Energy, Inc. BGDE	46.50%	3,545,221	view →
2026-07-02	SCHEDULE 13D/A	Big Digital Energy, Inc. BGDE	46.50%	3,545,221	view →
2026-06-15	SCHEDULE 13D/A	Big Digital Energy, Inc. BGDE	—	1,550,000	view →
2026-04-07	SCHEDULE 13D/A	Mawson Infrastructure Group Inc. MIGI	27.50%	1,500,000	view →
2026-01-26	SCHEDULE	Mawson Infrastructure Group Inc. MIGI	44.20%	1,460,000	view →
2026-01-21	SCHEDULE	Mawson Infrastructure Group Inc. MIGI	42.40%	1,400,000	view →
2026-01-12	SCHEDULE	Mawson Infrastructure Group Inc. MIGI	38.10%	1,260,000	view →
2026-01-06	SCHEDULE	Mawson Infrastructure Group Inc. MIGI	30.00%	990,000	view →

Want this depth on every filing the moment it hits SEC EDGAR?

Free $0 (48h-delayed alerts) · Individual $49/mo (real-time) · Team & API $199/mo · Enterprise.

See pricing →