Deep Isolation Nuclear grants McCallum 40,179 stock units
The RSU and option grants vest over stated dates, with vesting subject to continued service through each applicable date.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Form Type
4
Rhea-AI Filing Summary
Deep Isolation Nuclear, Inc. Chief of Staff Sophie McCallum received a grant of 40,179 restricted stock units on October 6, 2026; her reported direct common-stock holdings after the grant were 56,846 shares. The RSUs vest from September 29, 2027, through September 29, 2030, subject to continued service. She also received 62,206 incentive stock options and 2,301 non-qualified stock options, each with a $3.50 exercise price and an expiration date of September 29, 2036.
Insider Trade Summary
Grant/Award: 104,686 shares
Grant/Award
3 txns
Insider
McCallum Sophie
Role
Chief of Staff
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Grant/Award | Stock Option (right to buy) F2 | 62,206 | $0.00 | $0.00 |
| Grant/Award | Stock Option (right to buy) F2, F3 | 2,301 | $0.00 | $0.00 |
| Grant/Award | Common Stock F1 | 40,179 | $0.00 | $0.00 |
Holdings After Transaction:
Stock Option (right to buy) — 64,507 contracts (Direct);
Common Stock — 56,846 shares (Direct)
Footnotes (3)
- 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.
Key Figures
Restricted stock units: 40,179 RSUs
Reported direct common-stock holdings: 56,846 shares
Incentive stock options: 62,206 options
+3 more
6 metrics
Restricted stock units
40,179 RSUs
Granted October 6, 2026
Reported direct common-stock holdings
56,846 shares
Following the RSU grant
Incentive stock options
62,206 options
Grant dated October 6, 2026
Non-qualified stock options
2,301 options
Grant dated October 6, 2026
Exercise price
$3.50 per share
Both option grants
Option expiration date
September 29, 2036
Both option grants
Key Terms
restricted stock units, incentive stock option, non-qualified stock option, contingent right
4 terms
restricted stock units financial
"grant of restricted stock units (RSUs)"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
incentive stock option financial
"grant of incentive stock option"
An incentive stock option is a type of employee benefit that gives a worker the right to buy company shares at a fixed price, with special tax advantages if the employee holds the shares for a required period. Think of it as a coupon to buy future shares at today’s price that can result in lower tax on the gain. Investors care because ISOs can dilute share count, align staff incentives with the stock price, and affect company compensation costs and the timing of potential share sales.
non-qualified stock option financial
"grant of non-qualified stock option"
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
contingent right financial
"Each RSU represents a contingent right"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What equity awards did DBHL Chief of Staff Sophie McCallum receive?
On October 6, 2026, Sophie McCallum received 40,179 restricted stock units, 62,206 incentive stock options and 2,301 non-qualified stock options. Her reported direct common-stock holdings after the RSU grant were 56,846 shares.
When do Sophie McCallum’s DBHL restricted stock units vest?
The RSUs vest as follows: 10,045 on September 29, 2027; 10,045 on September 29, 2028; 10,044 on September 29, 2029; and 10,045 on September 29, 2030. Each installment is subject to continued service through its vesting date.
How do Sophie McCallum’s DBHL option awards vest?
The 62,206 incentive stock options vest in installments: 16,127 on September 29, 2027; 1,344 on October 29, 2027; and 386 on November 29, 2027. The remaining option shares vest monthly on the 29th day, or the last day of the month if earlier, from January 29, 2028, through September 29, 2030. The 2,301 non-qualified stock options vest as 958 on November 29, 2027, and 1,343 on December 29, 2027. Each vesting date is subject to continued service.
AI-generated analysis. How Rhea-AI works. Not financial advice.
