DBHLOTCRefuse SystemsFiscal year ends December 31
Deep Isolation Nuclear, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026
$2.92−0.16 (-5.19%)
Close on Oct 19, 2026
- Market cap
- $168.37M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Who owns Deep Isolation Nuclear's shares
Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Warren E. Spieker, Jr., individually and as Trustee of the Spieker Living Trust UAD 3/12/02 | 5,903,431 | 10.30% | 13G (passive) | Jul 23, 2025 |
| Mercer Robert L. | 3,745,760 | 6.50% | 13G (passive) | Jul 23, 2025 |
| Richard Muller | 3,340,560 | 5.80% | 13G (passive) | Jul 23, 2025 |
| Mark N. Tompkins | 3,150,000 | 5.50% | 13G (passive) amendment | Mar 31, 2026 |
| Elizabeth Muller | 12,663,479 | 22.10% | 13D (active) | Jul 23, 2025 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Rodney Baltzer | President and CEO, Director | 1,079,710 | 1.87% | Oct 3, 2025 |
| Ian Seth Jacobs | President, CEO, CFO, Secretary, Director | 275,000 | 0.48% | Jul 18, 2025 |
| Paula Beck Whitten-Doolin | General Counsel | 75,000 | 0.13% | May 29, 2026 |
| Joseph Eugene Nelson | Chief Financial Officer | 100,000 | 0.17% | May 29, 2026 |
| Sophie McCallum | Chief of Staff, Corp. Sec. | 16,667 | 0.03% | Nov 21, 2025 |
| Jesse Sloane | EVP Engineering | 13,333 | 0.02% | Nov 21, 2025 |
| Christopher Lombard Parker | CCO | 598,005 | 1.04% | Nov 21, 2025 |
| Steven Airhart | Pres, Freestone Env Svcs | 392,200 | 0.68% | Oct 3, 2025 |
| Christa Steele | Director | 113,333 | 0.20% | Sep 18, 2026 |
| Tepper Leslie Goldman | Director | 203,250 | 0.35% | Sep 18, 2026 |
| Ralph L. Hunter JR | Director | 113,333 | 0.20% | Sep 18, 2026 |
| Jonathon Angell | Director | 458,907 | 0.80% | Sep 18, 2026 |
| Renee J. Hornbaker | Director | 113,333 | 0.20% | Sep 18, 2026 |
| Elizabeth Muller | Director, 10% owner | 11,748,053 | 20.37% | Nov 21, 2025 |
| Kent Cole | Director | – | – | Aug 13, 2025 |
| Warren Edward Spieker JR | 10% owner | 5,903,431 | 10.24% | Aug 12, 2025 |
| Mark N. Tompkins | – | 1,891,667 | 3.28% | Jul 25, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Ralph L. Hunter JR Director | Sep 16, 2026 | Award | +70,000 | – | – | 113,333 |
| Renee J. Hornbaker Director | Sep 16, 2026 | Award | +70,000 | – | – | 113,333 |
| Christa Steele Director | Sep 16, 2026 | Award | +70,000 | – | – | 113,333 |
| Tepper Leslie Goldman Director | Sep 16, 2026 | Award | +70,000 | – | – | 178,250 |
| Jonathon Angell Director | Sep 16, 2026 | Award | +70,000 | – | – | 458,907 |
| Joseph Eugene Nelson Chief Financial Officer | May 27, 2026 | Award | +100,000 | – | – | 100,000 |
| Paula Beck Whitten-Doolin General Counsel | May 27, 2026 | Award | +75,000 | – | – | 75,000 |
| Ralph L. Hunter JR Director | Jan 21, 2026 | Award | +43,333 | – | – | 43,333 |
| Sophie McCallum Chief of Staff, Corp. Sec. | Nov 19, 2025 | Award | +6,798 | – | – | 16,667 |
| Christopher Lombard Parker CCO | Nov 19, 2025 | Award | +5,121 | – | – | 16,667 |
| Renee J. Hornbaker Director | Nov 19, 2025 | Award | +43,333 | – | – | 43,333 |
| Jonathon Angell Director | Nov 19, 2025 | Award | +43,333 | – | – | 388,907 |
| Jesse Sloane EVP Engineering | Nov 19, 2025 | Award | +738 | – | – | 13,333 |
| Elizabeth Muller Director, 10% owner | Nov 19, 2025 | Award | +43,333 | – | – | 11,748,053 |
| Tepper Leslie Goldman Director | Nov 19, 2025 | Award | +43,333 | – | – | 108,250 |
| Christa Steele Director | Nov 19, 2025 | Award | +43,333 | – | – | 43,333 |
| Renee J. Hornbaker Director | Oct 17, 2025 | Award | +32,500 | – | – | 32,500 |
| Elizabeth Muller Director, 10% owner | Oct 1, 2025 | Award | +32,500 | – | – | 11,737,220 |
| Christa Steele Director | Oct 1, 2025 | Award | +32,500 | – | – | 32,500 |
| Steven Airhart Pres, Freestone Env Svcs | Oct 1, 2025 | Award | +11,110 | – | – | 392,200 |
| Rodney Baltzer President and CEO, Director | Oct 1, 2025 | Award | +85,000 | – | – | 1,079,710 |
| Tepper Leslie Goldman Director | Oct 1, 2025 | Award | +32,500 | – | – | 97,687 |
| Sophie McCallum Chief of Staff, Corp. Sec. | Oct 1, 2025 | Award | +9,869 | – | – | 9,869 |
| Jonathon Angell Director | Oct 1, 2025 | Award | +32,500 | – | – | 378,074 |
| Christopher Lombard Parker CCO | Oct 1, 2025 | Award | +11,546 | – | – | 11,546 |
| Jesse Sloane EVP Engineering | Oct 1, 2025 | Award | +12,595 | – | – | 12,595 |
| Mark N. Tompkins – | Jul 23, 2025 | Other | −2,833,333 | – | – | 1,891,667 |
| Ian Seth Jacobs President, CEO, CFO, Secretary, Director | Jul 16, 2025 | Buy | +25,000 | – | – | 275,000 |
| Mark N. Tompkins Director, 10% owner | Jul 16, 2025 | Sale | −25,000 | – | – | 4,725,000 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.