Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Deep Isolation Nuclear, Inc.DBHL · Entity 9903 | Chief of Staff | October 06, 2026 | October 09, 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 Isolation Nuclear, Inc.
Report date October 06, 2026 · Filed October 09, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 56,846 |
Reported balance
After 2026-10-06 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-10-06 · Grant · Acquired 40,179 · Balance 56,846 F1: Represents a grant of restricted stock units ("RSUs") to the Reporting Person pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting. The RSUs shall vest as follows: 10,045 RSUs on September 29, 2027, 10,045 RSUs on September 29, 2028, 10,044 RSUs on September 29, 2029 and 10,045 RSUs on September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.50 · Expires 2036-09-29 | Direct | 62,206 |
Reported balance
After 2026-10-06 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-10-06 · Grant · Acquired 62,206 · Balance 62,206 F2: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.50 · Expires 2036-09-29 | Direct | 2,301 |
Reported balance
After 2026-10-06 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-10-06 · Grant · Acquired 2,301 · Balance 2,301 F2: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. F3: Represents a grant of non-qualified stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 958 option shares on November 29, 2027 and 1,343 option shares on December 29, 2027, in each case subject to the Reporting Person's continued service through each vesting date. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents a grant of restricted stock units ("RSUs") to the Reporting Person pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting. The RSUs shall vest as follows: 10,045 RSUs on September 29, 2027, 10,045 RSUs on September 29, 2028, 10,044 RSUs on September 29, 2029 and 10,045 RSUs on September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date.
F2: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date.
F3: Represents a grant of non-qualified stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 958 option shares on November 29, 2027 and 1,343 option shares on December 29, 2027, in each case subject to the Reporting Person's continued service through each vesting date.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| October 06, 2026 Filed Oct 9, 2026 00:30 UTC | Deep Isolation Nuclear, Inc. DBHL · Entity 9903 | GrantStock Option (right to buy) · Derivative | 2,301 | $0.00 Strike: $3.50 | $0.00 |
DisclosureSEC source: 0001213900-26-108171 · ownership.xml · derivative · entry 3 McCallum Sophie · CIK 0002085363 · Chief of Staff 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,301 Underlying: Common Stock · 2,301 shares Expires 2036-09-29 F2 · security: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. F3 · derivative.exercise_date: Represents a grant of non-qualified stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 958 option shares on November 29, 2027 and 1,343 option shares on December 29, 2027, in each case subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| October 06, 2026 Filed Oct 9, 2026 00:30 UTC | Deep Isolation Nuclear, Inc. DBHL · Entity 9903 | GrantStock Option (right to buy) · Derivative | 62,206 | $0.00 Strike: $3.50 | $0.00 |
DisclosureSEC source: 0001213900-26-108171 · ownership.xml · derivative · entry 2 McCallum Sophie · CIK 0002085363 · Chief of Staff 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 62,206 Underlying: Common Stock · 62,206 shares Expires 2036-09-29 F2 · security: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. F2 · derivative.exercise_date: Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 16,127 option shares on September 29, 2027, 1,344 option shares on October 29, 2027, 386 option shares on November 29, 2027, and the remaining option shares in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January 29, 2028 through September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| October 06, 2026 Filed Oct 9, 2026 00:30 UTC | Deep Isolation Nuclear, Inc. DBHL · Entity 9903 | GrantCommon Stock | 40,179 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-26-108171 · ownership.xml · nonDerivative · entry 1 McCallum Sophie · CIK 0002085363 · Chief of Staff 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,846 F1 · security: Represents a grant of restricted stock units ("RSUs") to the Reporting Person pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting. The RSUs shall vest as follows: 10,045 RSUs on September 29, 2027, 10,045 RSUs on September 29, 2028, 10,044 RSUs on September 29, 2029 and 10,045 RSUs on September 29, 2030, in each case subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| November 19, 2025 Filed Nov 21, 2025 16:16 UTC | Deep Isolation Nuclear, Inc. NONE · Entity 9903 | GrantStock Option (Right to Buy) · Derivative | 20,393 | $0.00 Strike: $3.00 | $0.00 |
DisclosureSEC source: 0001213900-25-113432 · ownership.xml · derivative · entry 2 McCallum Sophie · CIK 0002085363 · Chief of Staff, Corp. Sec. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,001 Underlying: Common Shares · 20,393 shares Expires 2035-11-19 F2 · derivative.exercise_date: The Stock Option is subject to a 4-year vesting schedule, whereby 1/48th of the option shares will vest monthly beginning on November 19, 2025, subject to Reporting Person's continued service through each vesting date. Read SEC document |
| November 19, 2025 Filed Nov 21, 2025 16:16 UTC | Deep Isolation Nuclear, Inc. NONE · Entity 9903 | GrantCommon Stock | 6,798 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-25-113432 · ownership.xml · nonDerivative · entry 1 McCallum Sophie · CIK 0002085363 · Chief of Staff, Corp. Sec. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,667 F1 · kind: Represents the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs are subject to a 4-year vesting period, whereby 1/48th of the RSUs will vest monthly beginning November 19, 2025, subject to the Reporting Person's continuous service through each vesting date. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 20:16 UTC | Deep Isolation Nuclear, Inc. NONE · Entity 9903 | GrantStock Option (Right to Buy) · Derivative | 29,608 | $0.00 Strike: $3.00 | $0.00 |
DisclosureSEC source: 0001213900-25-096098 · ownership.xml · derivative · entry 2 McCallum Sophie · CIK 0002085363 · Chief of Staff, Corp. Sec. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,608 Underlying: Common Shares · 29,608 shares Expires 2035-10-01 F2 · derivative.exercise_date: The Stock Option is subject to a 4-year vesting schedule, whereby 1/48th of the option shares will vest monthly beginning on October 1, 2025, subject to Reporting Person's continued service through each vesting date. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 20:16 UTC | Deep Isolation Nuclear, Inc. NONE · Entity 9903 | GrantCommon Stock | 9,869 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-25-096098 · ownership.xml · nonDerivative · entry 1 McCallum Sophie · CIK 0002085363 · Chief of Staff, Corp. Sec. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,869 F1 · kind: Represents the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs are subject to a 4-year vesting period, whereby 1/48th of the RSUs will vest monthly beginning October 1, 2025, subject to the Reporting Person's continuous service through each vesting date. 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.