DMAC's three largest insider shareholders as of April 28, 2026 are Jan Stahlberg (TenPercentOwner, 8.83Mn shares), Koch Thomas Von (TenPercentOwner, 8.38Mn shares), Jan Stahlberg (TenPercentOwner, 6.76Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jan Stahlberg | - | 0 | 8,825,742 | 08 Dec, 2025 |
| Koch Thomas Von | - | 0 | 8,383,577 | 25 Jul, 2025 |
| Jan Stahlberg | - | 0 | 6,764,465 | 25 Jul, 2025 |
| Koch Thomas Von | - | 0 | 2,855,847 | 06 Dec, 2022 |
| Koch Thomas Von | - | 0 | 2,855,827 | 21 Jul, 2022 |
| David J. Wambeke | Chief Business Officer | 527,114 | 0 | 16 Nov, 2023 |
| Randall Michael Giuffre | - | 398,587 | 0 | 06 Jan, 2026 |
| Randall Michael Giuffre | - | 392,412 | 0 | 18 Feb, 2025 |
| Richard D. Pilnik | - | 312,995 | 0 | 08 Apr, 2025 |
| Amy L. Burroughs | - | 73,288 | 0 | 03 Jan, 2023 |
| Dietrich John Pauls | President And Ceo | 68,591 | 0 | 26 Jun, 2023 |
| Charles Pauling Semba | - | 47,963 | 0 | 06 Jan, 2026 |
| Charles Pauling Semba | - | 44,608 | 0 | 03 Jan, 2025 |
| Harry W Jr Alcorn | Svp, Clinical Operations | 43,582 | 0 | 15 Sep, 2021 |
| Richard Kuntz | - | 24,210 | 0 | 03 Jan, 2025 |
| Harry W Jr Alcorn | Senior Vp, Clinical Operations | 0 | 399 | 16 Aug, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Jan, 2026 | Randall Michael Giuffre | Common Stock | A | 6,175 | $8.42 | 398,587 | D | A |
| 02 Jan, 2026 | Charles Pauling Semba | Common Stock | A | 3,355 | $8.42 | 47,963 | D | A |
| 17 Nov, 2025 | Jan Stahlberg | Common Shares | A | 187,393 | $6.52 | 7,951,858 | I | P |
| 18 Nov, 2025 | Jan Stahlberg | Common Shares | A | 182,882 | $6.75 | 8,134,740 | I | P |
| 19 Nov, 2025 | Jan Stahlberg | Common Shares | A | 240,352 | $7.21 | 8,375,092 | I | P |
| 20 Nov, 2025 | Jan Stahlberg | Common Shares | A | 128,426 | $7.41 | 8,503,518 | I | P |
| 21 Nov, 2025 | Jan Stahlberg | Common Shares | A | 208,872 | $7.41 | 8,712,390 | I | P |
| 24 Nov, 2025 | Jan Stahlberg | Common Shares | A | 40,253 | $7.89 | 8,752,643 | I | P |
| 25 Nov, 2025 | Jan Stahlberg | Common Shares | A | 73,099 | $8.57 | 8,825,742 | I | P |
| 13 Aug, 2025 | Jan Stahlberg | Common Shares | A | 293,601 | $5.91 | 7,058,066 | I | P |
| 14 Aug, 2025 | Jan Stahlberg | Common Shares | A | 70,414 | $5.99 | 7,128,480 | I | P |
| 15 Aug, 2025 | Jan Stahlberg | Common Shares | A | 8,233 | $6.00 | 7,136,713 | I | P |
| 20 Aug, 2025 | Jan Stahlberg | Common Shares | A | 71,107 | $5.86 | 7,207,820 | I | P |
| 21 Aug, 2025 | Jan Stahlberg | Common Shares | A | 48,172 | $5.96 | 7,255,992 | I | P |
| 22 Aug, 2025 | Jan Stahlberg | Common Shares | A | 59,788 | $5.96 | 7,315,780 | I | P |
| 25 Aug, 2025 | Jan Stahlberg | Common Shares | A | 338,265 | $6.00 | 7,654,045 | I | P |
| 26 Aug, 2025 | Jan Stahlberg | Common Shares | A | 59,648 | $6.00 | 7,713,693 | I | P |
| 27 Aug, 2025 | Jan Stahlberg | Common Shares | A | 50,772 | $6.00 | 7,764,465 | I | P |
| 23 Jul, 2025 | Koch Thomas Von | Common Shares | A | 2,857,142 | $3.50 | 8,383,577 | I | P |
| 23 Jul, 2025 | Jan Stahlberg | Common Shares | A | 1,542,857 | $3.50 | 6,764,465 | I | P |