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Brasel Michael Allen

Disclosed activity across 1 company

Tapewire entity
61650
SEC CIK
0002103077

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
DEEP FISSION, INC.NONE · Entity 5748Chief Operating OfficerMarch 09, 2026March 10, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

DEEP FISSION, INC.

Report date March 09, 2026 · Filed March 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Employee Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $15.00 · Expires 2036-03-09Direct530,000 Reported balance After 2026-03-09 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-03-09 · Grant · Acquired 445,000 · Balance 530,000

F1: Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.

Filing footnotes · ownership attribution and instrument terms

F1: Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 09, 2026 Filed Mar 10, 2026 21:25 UTC DEEP FISSION, INC. NONE · Entity 5748 GrantEmployee Stock Option (right to buy) · Derivative 445,000 $0.00 Strike: $15.00 $0.00
Disclosure

SEC source: 0001104659-26-025946 · tm268353-3_4seq1.xml · derivative · entry 1

Brasel Michael Allen · CIK 0002103077 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 530,000

Underlying: Common Stock · 445,000 shares

Expires 2036-03-09

F1 · derivative.exercise_date: Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.

Read SEC document
February 18, 2026 Filed Feb 24, 2026 18:42 UTC DEEP FISSION, INC. NONE · Entity 5748 GrantEmployee Stock Option (right to buy) · Derivative 15,000 $0.00 Strike: $15.00 $0.00
Disclosure

SEC source: 0001104659-26-019023 · tm266857-5_4seq1.xml · derivative · entry 1

Brasel Michael Allen · CIK 0002103077 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2036-02-18

F1 · derivative.exercise_date: Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.

Read SEC document
November 07, 2025 Filed Jan 7, 2026 15:19 UTC DEEP FISSION, INC. NONE · Entity 5748 GrantEmployee Stock Option (right to buy) · Derivative 70,000 $0.00 Strike: $2.73 $0.00
Disclosure

SEC source: 0001104659-26-001645 · tm2531523-4_4seq1.xml · derivative · entry 1

Brasel Michael Allen · CIK 0002103077 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 70,000 shares

Expires 2035-11-07

F1 · derivative.exercise_date: Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.