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Strategy Inc (MSTR) SEC Filing (4) 2026

Browse all Strategy Inc SEC filings, including Annual reports (10-K), Quarterly reports (10-Q), 8-K, proxy statements (DEF 14A), and insider filings (Form 4). Access official documents by filing date, reporting period, and form type. ...more

Last updated: October 15, 2026, 1:14 AM ET
SEC filings
Years
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SEC Filings

Date

2026

DEFA14A

Additional or supplemental proxy disclosures

Oct 14, 2026 05:25 PM

DEFA14A

Additional or supplemental proxy disclosures

Oct 13, 2026 04:01 PM

DEFA14A

Additional or supplemental proxy disclosures

Oct 13, 2026 08:32 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Oct 13, 2026 08:00 AM

4

Insider ownership (buying, selling) activity

Oct 13, 2026 04:00 PM

DEFA14A

Additional or supplemental proxy disclosures

Oct 9, 2026 05:25 PM

DEF 14A

Final shareholder voting details (board elections and executive pay)

Oct 5, 2026 07:55 AM

DEFA14A

Additional or supplemental proxy disclosures

Oct 5, 2026 08:02 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Oct 5, 2026 08:00 AM

DEFA14A

Additional or supplemental proxy disclosures

Oct 5, 2026 05:25 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Oct 1, 2026 08:01 AM

DEFA14A

Additional or supplemental proxy disclosures

Oct 1, 2026 08:02 AM

DEFA14A

Additional or supplemental proxy disclosures

Sep 30, 2026 05:13 PM

DEFA14A

Additional or supplemental proxy disclosures

Sep 29, 2026 05:01 PM

DEFA14A

Additional or supplemental proxy disclosures

Sep 28, 2026 08:05 AM

DEFA14A

Additional or supplemental proxy disclosures

Sep 28, 2026 05:14 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 28, 2026 08:00 AM

DEFA14A

Additional or supplemental proxy disclosures

Sep 25, 2026 04:01 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 25, 2026 08:03 AM

PRE 14A

Preliminary proxy statement filed for SEC review

Sep 25, 2026 07:55 AM

DEFA14A

Additional or supplemental proxy disclosures

Sep 25, 2026 04:46 PM

4

Insider ownership (buying, selling) activity

Sep 23, 2026 04:01 PM

4

Insider ownership (buying, selling) activity

Sep 22, 2026 05:58 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 21, 2026 08:00 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 14, 2026 08:00 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 8, 2026 08:00 AM

4

Insider ownership (buying, selling) activity

Sep 8, 2026 04:01 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Sep 1, 2026 08:07 AM

4

Insider ownership (buying, selling) activity

Aug 31, 2026 04:58 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Aug 31, 2026 08:00 AM

4

Insider ownership (buying, selling) activity

Aug 26, 2026 05:03 PM

FWP

Free writing prospectus related to a securities offering

Aug 24, 2026 04:01 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Aug 24, 2026 08:00 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Aug 17, 2026 08:00 AM

4

Insider ownership (buying, selling) activity

Aug 10, 2026 04:01 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Aug 10, 2026 08:00 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Aug 3, 2026 08:00 AM

10-Q

Quarterly financial results and management updates

Aug 3, 2026 04:49 PM

FWP

Free writing prospectus related to a securities offering

Aug 3, 2026 04:57 PM

8-K/A

Corrected company event report

Jul 30, 2026 08:43 PM

Strategy Inc (Form 4) 2026

Insider Trades / Insider ownership (buying, selling) activity

Oct 13, 2026 04:00 PM

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