DBHL's three largest insider shareholders as of September 29, 2026 are Elizabeth Muller (Director, 11.75Mn shares), Mark N. Tompkins (Other, 1.89Mn shares), Rodney Baltzer (President And Ceo, 1.08Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Elizabeth Muller | Director, TenPercentOwner | 11,748,053 | 0 | 11,748,053 | 70.8% | 21 Nov, 2025 |
| 2 | Mark N. Tompkins | Other | 1,891,667 | 0 | 1,891,667 | 11.4% | 25 Jul, 2025 |
| 3 | Rodney Baltzer | President And Ceo | 1,079,710 | 0 | 1,079,710 | 6.5% | 03 Oct, 2025 |
| 4 | Jonathon Angell | Director | 458,907 | 0 | 458,907 | 2.8% | 18 Sep, 2026 |
| 5 | Steven Airhart | Pres, Freestone Env Svcs | 392,200 | 0 | 392,200 | 2.4% | 03 Oct, 2025 |
| 6 | Ian Seth Jacobs | President, Ceo, Cfo, Secretary | 275,000 | 0 | 275,000 | 1.7% | 18 Jul, 2025 |
| 7 | Tepper Leslie Goldman | Director | 178,250 | 0 | 178,250 | 1.1% | 18 Sep, 2026 |
| 8 | Ralph L. Jr Hunter | Director | 113,333 | 0 | 113,333 | 0.7% | 18 Sep, 2026 |
| 9 | Christa Steele | Director | 113,333 | 0 | 113,333 | 0.7% | 18 Sep, 2026 |
| 10 | Renee J Hornbaker | Director | 113,333 | 0 | 113,333 | 0.7% | 18 Sep, 2026 |
| 11 | Joseph Eugene Nelson | Chief Financial Officer | 100,000 | 0 | 100,000 | 0.6% | 29 May, 2026 |
| 12 | Paula Beck Whitten-Doolin | General Counsel | 75,000 | 0 | 75,000 | 0.5% | 29 May, 2026 |
| 13 | Christopher Lombard Parker | Cco | 16,667 | 0 | 16,667 | 0.1% | 21 Nov, 2025 |
| 14 | Sophie Mccallum | Chief Of Staff, Corp. Sec. | 16,667 | 0 | 16,667 | 0.1% | 21 Nov, 2025 |
| 15 | Jesse Sloane | Evp Engineering | 13,333 | 0 | 13,333 | 0.1% | 21 Nov, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 16 Sep, 2026 | Tepper Leslie Goldman | Director | Acquired A | 70,000 | $0.00 | $0 | 178,250 | Direct |
| 16 Sep, 2026 | Renee J Hornbaker | Director | Acquired A | 70,000 | $0.00 | $0 | 113,333 | Direct |
| 16 Sep, 2026 | Jonathon Angell | Director | Acquired A | 70,000 | $0.00 | $0 | 458,907 | Direct |
| 16 Sep, 2026 | Ralph L. Jr Hunter | Director | Acquired A | 70,000 | $0.00 | $0 | 113,333 | Direct |
| 16 Sep, 2026 | Christa Steele | Director | Acquired A | 70,000 | $0.00 | $0 | 113,333 | Direct |
| 27 May, 2026 | Joseph Eugene Nelson | Chief Financial Officer | Acquired A | 100,000 | $0.00 | $0 | 100,000 | Direct |
| 27 May, 2026 | Paula Beck Whitten-Doolin | General Counsel | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 27 May, 2026 | Paula Beck Whitten-Doolin | General Counsel | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 27 May, 2026 | Joseph Eugene Nelson | Chief Financial Officer | Acquired A | 40,000 | $0.00 | $0 | 40,000 | Direct |
| 19 Nov, 2025 | Christa Steele | Director | Acquired A | 43,333 | $0.00 | $0 | 43,333 | Direct |
| 19 Nov, 2025 | Renee J Hornbaker | Director | Acquired A | 43,333 | $0.00 | $0 | 43,333 | Direct |
| 19 Nov, 2025 | Elizabeth Muller | Director, TenPercentOwner | Acquired A | 43,333 | $0.00 | $0 | 11,748,053 | Direct |
| 19 Nov, 2025 | Tepper Leslie Goldman | Director | Acquired A | 43,333 | $0.00 | $0 | 108,250 | Direct |
| 19 Nov, 2025 | Jonathon Angell | Director | Acquired A | 43,333 | $0.00 | $0 | 388,907 | Direct |
| 19 Nov, 2025 | Christopher Lombard Parker | Cco | Acquired A | 5,121 | $0.00 | $0 | 16,667 | Direct |
| 19 Nov, 2025 | Sophie Mccallum | Chief Of Staff, Corp. Sec. | Acquired A | 6,798 | $0.00 | $0 | 16,667 | Direct |
| 19 Nov, 2025 | Jesse Sloane | Evp Engineering | Acquired A | 738 | $0.00 | $0 | 13,333 | Direct |
| 19 Nov, 2025 | Sophie Mccallum | Chief Of Staff, Corp. Sec. | Acquired A | 20,393 | $0.00 | $0 | 50,001 | Direct |
| 19 Nov, 2025 | Jesse Sloane | Evp Engineering | Acquired A | 2,215 | $0.00 | $0 | 40,000 | Direct |
| 19 Nov, 2025 | Christopher Lombard Parker | Cco | Acquired A | 15,364 | $0.00 | $0 | 29,001 | Direct |