Company · CIK 0001389545 · SIC 6199 — Finance Services · NYSE
Stablecoin Development Corp · SDEV
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 15, 2026 SForm 4 → | Jun 17, 8:26 pm EDT | Michael John KazleyChief Executive Officer, Director, 10% Owner | 24,720 | $1.09 | $26,945 | 22,668,516 | −0.11% | |
| Jun 15, 2026 XForm 4 → | Jun 17, 8:26 pm EDT | Michael John KazleyChief Executive Officer, Director, 10% Owner | 11,332,020 | $0.0024 | $27,197 | 22,693,236 | — | |
| Jun 15, 2026 SForm 4 → | Jun 17, 8:25 pm EDT | Framework Ventures IV L.P. +410% Owner | 24,720 | $1.09 | $26,945 | 22,668,516 | −0.11% | |
| Jun 15, 2026 XForm 4 → | Jun 17, 8:25 pm EDT | Framework Ventures IV L.P. +410% Owner | 11,332,020 | $0.0024 | $27,197 | 22,693,236 | — | |
| Jun 15, 2026 SForm 4 → | Jun 17, 8:25 pm EDT | R01 Fund LP +310% Owner | 24,720 | $1.09 | $26,945 | 22,668,516 | −0.11% | |
| Jun 15, 2026 XForm 4 → | Jun 17, 8:25 pm EDT | R01 Fund LP +310% Owner | 11,332,020 | $0.0024 | $27,197 | 22,693,236 | — | |
| Oct 11, 2016 XForm 4 → | Oct 11, 6:44 pm EDT | Jian Ping Fu10% Owner | 126,985 | $3.15 | $400,003 | 3,983,304 | — | plan? |
| Sep 30, 2016 XForm 4 → | Oct 3, 4:32 pm EDT | Mark M SieczkarekCEO, Director | 273,447 | $1.91 | $522,284 | 988,945 | — | plan? |
| Sep 30, 2016 XForm 4 → | Oct 3, 4:24 pm EDT | Mijia WuDirector | 15,873 | $3.15 | $50,000 | 47,619 | — | plan? |
| Sep 22, 2016 XForm 4 → | Sep 26, 6:14 pm EDT | Jian Ping Fu10% Owner | 968,587 | $1.91 | $1,850,001 | 3,856,319 | — | plan? |
| Sep 22, 2016 XForm 4 → | Sep 26, 6:05 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 1,308,902 | $1.91 | $2,500,003 | 5,188,421 | — | plan? |
| Sep 22, 2016 XForm 4 → | Sep 26, 5:45 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 181,300 | $1.81 | $328,153 | 3,879,519 | — | plan? |
| Aug 1, 2016 AForm 4 → | Aug 2, 1:26 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 1,308,901 | $1.91 | $2,500,001 | 3,698,219 | — | plan? |
| Aug 1, 2016 AForm 4 → | Aug 2, 1:18 pm EDT | Mark M SieczkarekCEO, Director | 261,780 | $1.91 | $500,000 | 715,498 | — | plan? |
| May 9, 2016 AForm 4 → | May 16, 2:03 pm EDT | Jian Ping Fu10% Owner | 1,937,173 | $1.91 | $3,700,000 | 2,887,732 | — | plan? late |
| May 9, 2016 AForm 4 → | May 13, 5:17 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 1,308,901 | $1.91 | $2,500,001 | 2,389,318 | — | plan? late |
| May 9, 2016 AForm 4 → | May 13, 2:55 pm EDT | Mark M SieczkarekDirector | 261,780 | $1.91 | $500,000 | 453,718 | — | plan? late |
| Feb 25, 2016 AForm 4 → | Feb 26, 9:08 pm EST | Mark M SieczkarekDirector | 125,387 | $1.91 | $239,489 | 133,246 | — | plan? |
| Feb 25, 2016 AForm 4 → | Feb 26, 9:07 pm EST | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 696,590 | $1.91 | $1,330,487 | 1,104,742 | — | plan? |
| Oct 5, 2015 AForm 4 → | Oct 6, 7:13 pm EDT | Thomas J PaulsonCFO | 50,000 | — | — | 142,196 | — | plan? |
| Aug 19, 2015 PForm 4 → | Aug 21, 4:03 pm EDT | Ramin NajafiChief Executive Officer, Director, 10% Owner | 12,000 | $0.47 | $5,640 | 12,000 | — | plan? |
| Apr 14, 2015 CForm 4/A → | Apr 30, 3:01 pm EDT | Russell A. HoonSenior Vice President | 4,515 | — | — | 34,217 | — | plan? |
| Mar 23, 2015 AForm 4 → | Mar 25, 7:09 pm EDT | Roy J WuSVP Bus & Corp Development | 19,296 | — | — | 19,296 | — | plan? |
| Mar 23, 2015 AForm 4 → | Mar 25, 6:59 pm EDT | Thomas J PaulsonCFO | 23,986 | — | — | 92,196 | — | plan? |
| Mar 23, 2015 AForm 4 → | Mar 25, 6:50 pm EDT | Ramin NajafiChief Executive Officer, Director, 10% Owner | 46,033 | — | — | 3,437,699 | — | plan? |
| Mar 3, 2015 PForm 4 → | Mar 5, 6:01 pm EST | Mark M SieczkarekDirector | 166,666 | $0.60 | $100,000 | 196,466 | +559% | plan? |
| Mar 3, 2015 PForm 4 → | Mar 5, 5:44 pm EST | Ramin NajafiChief Executive Officer, Director, 10% Owner | 166,666 | $0.60 | $100,000 | 3,391,666 | +5.17% | plan? |
| Mar 3, 2015 PForm 4 → | Mar 5, 5:01 pm EST | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 2,590,000 | $0.60 | $1,554,000 | 9,595,656 | +37.0% | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 15, 2026 XForm 4 → | Jun 17, 8:26 pm EDT | Michael John KazleyChief Executive Officer, Director, 10% Owner | 11,332,020 | — | — | 0 | — | |
| Jun 15, 2026 XForm 4 → | Jun 17, 8:25 pm EDT | Framework Ventures IV L.P. +410% Owner | 11,332,020 | — | — | 0 | — | |
| Jun 15, 2026 XForm 4 → | Jun 17, 8:25 pm EDT | R01 Fund LP +310% Owner | 11,332,020 | — | — | 0 | — | |
| Oct 9, 2018 AForm 4 → | Oct 11, 4:30 pm EDT | John Joseph McGovernInt Pres, CEO, CFO & Treasurer | 250,000 | — | — | 440,000 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 4:27 pm EDT | Mijia WuDirector | 20,000 | — | — | 35,244 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 4:22 pm EDT | Todd Erik ZavodnickDirector | 20,000 | — | — | 53,698 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 4:18 pm EDT | Gail J MaderisDirector | 20,000 | — | — | 84,213 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 2:24 pm EDT | Yonghao MaDirector | 20,000 | — | — | 43,629 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 2:16 pm EDT | Yanbin LiuDirector | 20,000 | — | — | 20,000 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 2:10 pm EDT | Xinzhou LiDirector, 10% Owner | 20,000 | — | — | 25,248 | — | |
| May 31, 2018 AForm 4 → | Jun 4, 1:59 pm EDT | Paul E. FreimanDirector | 20,000 | — | — | 62,697 | — | |
| May 31, 2018 AForm 4 → | Jun 1, 5:34 pm EDT | Justin HallSVP, General Counsel | 190,000 | — | — | 345,710 | — | |
| May 31, 2018 AForm 4 → | Jun 1, 5:21 pm EDT | John Joseph McGovernCFO and Treasurer | 90,000 | — | — | 190,000 | — | |
| Dec 14, 2017 AForm 4 → | Jan 8, 2018, 6:29 pm EST | Lewis J StuartChief Commercial Officer | 10,000 | — | — | 10,000 | — | late |
| Dec 14, 2017 AForm 4 → | Jan 8, 2018, 6:21 pm EST | Lewis J StuartChief Commercial Officer | 100,000 | — | — | 100,000 | — | late |
| Sep 14, 2017 XForm 4 → | Sep 18, 7:53 pm EDT | Justin HallSVP, General Counsel | 20,000 | — | — | 278,160 | — | |
| Jul 17, 2017 AForm 4 → | Aug 1, 3:58 pm EDT | John Joseph McGovernCFO and Treasurer | 100,000 | — | — | 100,000 | — | late |
| Jul 3, 2017 AForm 4 → | Jul 7, 4:20 pm EDT | Xinzhou LiDirector, 10% Owner | 5,248 | — | — | 5,248 | — | late |
| Jun 2, 2017 AForm 4 → | Jun 6, 5:34 pm EDT | Mark M SieczkarekCEO, Director | 250,000 | — | — | 250,000 | — | |
| Jan 25, 2017 AForm 4 → | Jan 26, 6:48 pm EST | Justin HallSVP, General Counsel | 143,000 | — | — | 278,160 | — | |
| Jan 25, 2017 AForm 4 → | Jan 26, 6:43 pm EST | Thomas J PaulsonCFO | 116,000 | — | — | 310,788 | — | |
| Jan 25, 2017 AForm 4 → | Jan 26, 6:35 pm EST | Mark M SieczkarekCEO, Director | 238,609 | — | — | 936,857 | — | |
| Jan 3, 2017 AForm 4/A → | Jan 19, 2018, 5:29 pm EST | Yonghao MaDirector | 20,326 | — | — | 23,629 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:29 pm EST | Mijia WuDirector | 15,245 | — | — | 15,245 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:25 pm EST | Xiaoyan LiuDirector | 15,245 | — | — | 15,245 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:21 pm EST | Yonghao MaDirector | 33,699 | — | — | 37,002 | — | amended |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:15 pm EST | Todd Erik ZavodnickDirector | 22,359 | — | — | 33,699 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:07 pm EST | Gail J MaderisDirector | 23,883 | — | — | 59,769 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:02 pm EST | Paul E. FreimanDirector | 25,916 | — | — | 67,097 | — | |
| Jan 3, 2017 AForm 4 → | Jan 4, 6:02 pm EST | Paul E. FreimanDirector | 25,916 | — | — | 67,097 | — | |
| Oct 3, 2016 AForm 4/A → | Oct 4, 6:20 pm EDT | Todd Erik ZavodnickDirector | 247 | — | — | 11,367 | — | |
| Oct 3, 2016 AForm 4 → | Oct 4, 6:05 pm EDT | Yonghao MaDirector | 3,303 | — | — | 3,303 | — | |
| Oct 3, 2016 AForm 4 → | Oct 4, 5:34 pm EDT | Todd Erik ZavodnickDirector | 3,303 | — | — | 14,396 | — | |
| Aug 1, 2016 AForm 4 → | Aug 2, 1:26 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 654,451 | — | — | 1,490,202 | — | |
| Aug 1, 2016 AForm 4 → | Aug 2, 1:18 pm EDT | Mark M SieczkarekCEO, Director | 130,890 | — | — | 273,447 | — | |
| Jul 1, 2016 AForm 4 → | Jul 1, 7:30 pm EDT | Todd Erik ZavodnickDirector | 11,093 | — | — | 0 | — | |
| Jun 6, 2016 AForm 4 → | Jun 9, 11:35 am EDT | Justin HallGeneral Counsel | 130,000 | — | — | 135,160 | — | late |
| Jun 6, 2016 AForm 4 → | Jun 8, 7:48 pm EDT | Thomas J PaulsonCFO | 160,000 | — | — | 194,788 | — | |
| Jun 6, 2016 AForm 4 → | Jun 8, 7:33 pm EDT | Mark M SieczkarekCEO, Director | 675,000 | — | — | 698,248 | — | |
| May 9, 2016 AForm 4 → | May 16, 2:03 pm EDT | Jian Ping Fu10% Owner | 968,587 | — | — | 1,095,572 | — | late |
| May 9, 2016 AForm 4 → | May 13, 5:17 pm EDT | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 654,451 | — | — | 835,751 | — | late |
| May 9, 2016 AForm 4 → | May 13, 5:07 pm EDT | Mark M SieczkarekDirector | 130,890 | — | — | 142,557 | — | late |
| Mar 9, 2016 AForm 4 → | Mar 9, 8:06 pm EST | Mark M SieczkarekDirector | 58,692 | — | — | 58,692 | — | |
| Mar 9, 2016 AForm 4 → | Mar 9, 7:51 pm EST | Justin HallGeneral Counsel | 5,000 | — | — | 2,400 | — | |
| Jan 4, 2016 AForm 4 → | Jan 6, 7:17 pm EST | Mark M SieczkarekDirector | 16,032 | — | — | 23,246 | — | |
| Jan 4, 2016 AForm 4 → | Jan 6, 7:04 pm EST | Massimo RadaelliDirector | 600 | — | — | 2,400 | — | |
| Jan 4, 2016 AForm 4 → | Jan 6, 6:43 pm EST | T. Alex McPhersonDirector | 22,719 | — | — | 44,210 | — | |
| Jan 4, 2016 AForm 4 → | Jan 6, 6:34 pm EST | Gail J MaderisDirector | 24,777 | — | — | 35,886 | — | |
| Jan 4, 2016 AForm 4 → | Jan 6, 5:50 pm EST | Paul E. FreimanDirector | 26,835 | — | — | 41,181 | — | |
| Oct 5, 2015 AForm 4 → | Oct 6, 8:23 pm EDT | David W. StromanSVP, Ophthalmic Product Devt. | 100,000 | — | — | 474,834 | — | |
| Oct 5, 2015 AForm 4 → | Oct 6, 8:17 pm EDT | Roy J WuSVP Bus & Corp Development | 175,000 | — | — | 25,000 | — | |
| Oct 5, 2015 AForm 4 → | Oct 6, 7:13 pm EDT | Thomas J PaulsonCFO | 150,000 | — | — | 869,675 | — | |
| Jun 12, 2015 AForm 4 → | Jun 16, 6:35 pm EDT | Mark M SieczkarekDirector | 24,128 | — | — | 180,362 | — | |
| Apr 14, 2015 AForm 4 → | Apr 15, 3:14 pm EDT | Russell A. HoonSenior Vice President | 4,515 | — | — | 34,217 | — | amended |
| Mar 3, 2015 PForm 4 → | Mar 5, 6:01 pm EST | Mark M SieczkarekDirector | 291,665 | $0.6214 | $181,249 | 291,665 | — | |
| Mar 3, 2015 PForm 4 → | Mar 5, 5:44 pm EST | Ramin NajafiChief Executive Officer, Director, 10% Owner | 291,665 | $0.6214 | $181,249 | 291,665 | — | |
| Mar 3, 2015 PForm 4 → | Mar 5, 5:01 pm EST | Pioneer Pharma (Singapore) Pte. Ltd.10% Owner | 4,532,500 | $0.6214 | $2,816,625 | 4,532,500 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 6:18 pm EST | Massimo RadaelliDirector | 15,000 | — | — | 45,000 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 6:13 pm EST | Gail J MaderisDirector | 121,144 | — | — | 277,726 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 6:02 pm EST | Charles CashionDirector | 69,368 | — | — | 377,156 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 5:37 pm EST | Mark M SieczkarekDirector | 92,667 | — | — | 156,234 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 5:25 pm EST | T. Alex McPhersonDirector | 144,444 | — | — | 537,279 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 4:53 pm EST | Paul E. FreimanDirector | 121,144 | — | — | 358,654 | — | |
| Jan 2, 2015 AForm 4 → | Jan 6, 4:31 pm EST | Tony D.S. WicksDirector | 15,000 | — | — | 301,016 | — |