Adamas Trust, Inc. (ADAMZ) shareholders
Close on Oct 30, 2026Market cap $587.81MP/E –Yield –
Ownership
Who owns Adamas Trust's shares
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 13,842,837 | 15.30% | 13G (passive) amendment | Jun 30, 2025 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Jason T. Serrano | Chief Executive Officer, Director | 389,714 | Jan 28, 2026 |
| Kristine Rimando Nario-Eng | Chief Financial Officer | 156,546 | Jan 28, 2026 |
| Nicholas Mah | President | 251,456 | Jan 28, 2026 |
| Steven G. Norcutt | Director | 79,688 | Jun 23, 2026 |
| Audrey Greenberg | Director | 28,222 | Jun 23, 2026 |
| Gena Cheng | Director | 21,599 | Jun 23, 2026 |
| Lisa A. Pendergast | Director | 54,485 | Jun 23, 2026 |
| Steven R. Mumma | Director | 491,541 | Jun 23, 2026 |
| Michael B. Clement | Director | 101,309 | Jun 23, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Michael B. Clement Director | Jun 10, 2026 | Option exercise | +18,678 | – | – | 101,309 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 27, 2026 | Tax withholding | −751 | $8.41 | $6.32K | 156,546 |
| Nicholas Mah President | Jan 27, 2026 | Tax withholding | −2,237 | $8.41 | $18.81K | 251,456 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 27, 2026 | Tax withholding | −5,827 | $8.41 | $49.01K | 389,714 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Tax withholding | −13,342 | $7.30 | $97.40K | 157,297 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Option exercise | +24,123 | – | – | 170,639 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Tax withholding | −7,311 | $7.30 | $53.37K | 146,516 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Option exercise | +12,309 | – | – | 153,827 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Tax withholding | −5,769 | $7.30 | $42.11K | 141,518 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2026 | Option exercise | +9,765 | – | – | 147,287 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Option exercise | +34,179 | – | – | 355,007 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Tax withholding | −19,140 | $7.30 | $139.72K | 335,867 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Option exercise | +41,032 | – | – | 376,899 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Tax withholding | −21,455 | $7.30 | $156.62K | 355,444 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Tax withholding | −44,640 | $7.30 | $325.87K | 395,541 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2026 | Option exercise | +84,737 | – | – | 440,181 |
| Nicholas Mah President | Jan 1, 2026 | Option exercise | +24,414 | – | – | 231,421 |
| Nicholas Mah President | Jan 1, 2026 | Tax withholding | −14,509 | $7.30 | $105.92K | 216,912 |
| Nicholas Mah President | Jan 1, 2026 | Option exercise | +32,122 | – | – | 249,034 |
| Nicholas Mah President | Jan 1, 2026 | Tax withholding | −17,505 | $7.30 | $127.79K | 231,529 |
| Nicholas Mah President | Jan 1, 2026 | Option exercise | +48,948 | – | – | 280,477 |
| Nicholas Mah President | Jan 1, 2026 | Tax withholding | −26,784 | $7.30 | $195.52K | 253,693 |
| Michael B. Clement Director | Jun 11, 2025 | Option exercise | +18,462 | – | – | 82,631 |
| Steven R. Mumma Director | Jan 27, 2025 | Tax withholding | −9,628 | $6.05 | $58.25K | 491,541 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 27, 2025 | Tax withholding | −11,841 | $6.05 | $71.64K | 320,828 |
| Nicholas Mah President | Jan 27, 2025 | Tax withholding | −7,684 | $6.05 | $46.49K | 207,007 |
| Nicholas Mah President | Jan 1, 2025 | Tax withholding | −17,009 | $6.06 | $103.07K | 214,691 |
| Nicholas Mah President | Jan 1, 2025 | Option exercise | +7,467 | – | – | 193,284 |
| Nicholas Mah President | Jan 1, 2025 | Tax withholding | −4,118 | $6.06 | $24.96K | 189,166 |
| Nicholas Mah President | Jan 1, 2025 | Option exercise | +24,414 | – | – | 213,580 |
| Nicholas Mah President | Jan 1, 2025 | Tax withholding | −14,002 | $6.06 | $84.85K | 199,578 |
| Nicholas Mah President | Jan 1, 2025 | Option exercise | +32,122 | – | – | 231,700 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Option exercise | +4,200 | – | – | 130,439 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Tax withholding | −2,204 | $6.06 | $13.36K | 128,235 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Option exercise | +9,766 | – | – | 138,001 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Tax withholding | −5,656 | $6.06 | $34.28K | 132,345 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Option exercise | +12,310 | – | – | 144,655 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 1, 2025 | Tax withholding | −7,133 | $6.06 | $43.23K | 137,522 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Option exercise | +12,320 | – | – | 301,944 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Tax withholding | −6,316 | $6.06 | $38.27K | 295,628 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Option exercise | +34,180 | – | – | 329,808 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Tax withholding | −17,635 | $6.06 | $106.87K | 312,173 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Option exercise | +41,032 | – | – | 353,205 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 1, 2025 | Tax withholding | −20,536 | $6.06 | $124.45K | 332,669 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 27, 2024 | Tax withholding | −17,328 | $8.38 | $145.21K | 289,624 |
| Nicholas Mah President | Jan 27, 2024 | Tax withholding | −11,177 | $8.38 | $93.66K | 185,817 |
| Steven R. Mumma Director | Jan 27, 2024 | Tax withholding | −14,289 | $8.38 | $119.74K | 501,169 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 27, 2024 | Tax withholding | −4,727 | $8.38 | $39.61K | 126,239 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 24, 2024 | Award | +85,817 | – | – | 350,836 |
| Jason T. Serrano Chief Executive Officer, Director | Jan 24, 2024 | Tax withholding | −43,884 | $8.23 | $361.17K | 306,952 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 24, 2024 | Tax withholding | −17,447 | $8.23 | $143.59K | 130,966 |
| Kristine Rimando Nario-Eng Chief Financial Officer | Jan 24, 2024 | Award | +32,181 | – | – | 148,413 |
| Steven R. Mumma Director | Jan 24, 2024 | Award | +102,980 | – | – | 567,520 |
| Steven R. Mumma Director | Jan 24, 2024 | Tax withholding | −52,062 | $8.23 | $428.47K | 515,458 |
| Nicholas Mah President | Jan 24, 2024 | Award | +57,212 | – | – | 227,986 |
| Nicholas Mah President | Jan 24, 2024 | Tax withholding | −30,992 | $8.23 | $255.06K | 196,994 |
| Nicholas Mah President | Jan 1, 2024 | Option exercise | +24,414 | – | – | 183,953 |
| Nicholas Mah President | Jan 1, 2024 | Option exercise | +7,527 | – | – | 160,537 |
| Nicholas Mah President | Jan 1, 2024 | Tax withholding | −4,259 | $8.53 | $36.33K | 156,278 |
| Nicholas Mah President | Jan 1, 2024 | Option exercise | +7,467 | – | – | 163,745 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 15, 2026 (FINRA, reported twice a month)
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Adamas Trust's stock actually held short. Settlement fails (shares not delivered on time) peaked at 1,212 shares on Aug 20, 2026 over the last 90 days.