Decoy Therapeutics Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| HANISH ARNOLD C | — | Purchase | 5,000 | $0.75 | $3,750 | 5,015 | Nov 20, 2025 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 20,000 | $0.80 | $16,000 | 20,177 | Nov 20, 2025 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 6,432 | — | — | 21,851 | Feb 13, 2023 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 14,300 | — | — | 48,019 | Feb 13, 2023 |
| Lieber Jonathan I | — | Award / Grant | 1,440 | — | — | 2,940 | Jan 3, 2023 |
| McCreedy Bruce J Jr. | — | Award / Grant | 1,440 | — | — | 1,788 | Jan 3, 2023 |
| HANISH ARNOLD C | — | Award / Grant | 1,440 | — | — | 1,440 | Jan 3, 2023 |
| Lammers Paul | — | Award / Grant | 1,440 | — | — | 1,718 | Jan 3, 2023 |
| Burleson Tess | — | Award / Grant | 1,440 | — | — | 2,722 | Jan 3, 2023 |
| McVicar William K. | — | Award / Grant | 1,440 | — | — | 1,788 | Jan 3, 2023 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 8,000 | — | — | 15,419 | Jan 3, 2023 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 20,000 | — | — | 33,719 | Jan 3, 2023 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 10,000 | $1.73 | $17,300 | 285,674 | Nov 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 7,314 | $1.73 | $12,653 | 155,633 | Nov 3, 2022 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 10,000 | $1.73 | $17,300 | 21,026 | Nov 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 7,314 | $1.73 | $12,653 | 13,245 | Nov 3, 2022 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 2,693 | $1.73 | $4,659 | 13,719 | Nov 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 1,488 | $1.73 | $2,574 | 7,419 | Nov 3, 2022 |
| Burleson Tess | — | Purchase | 27,700 | $0.18 | $4,986 | 32,050 | Jun 7, 2022 |
| Lieber Jonathan I | — | Purchase | 37,500 | $0.19 | $7,125 | 37,500 | Jun 7, 2022 |
| McVicar William K. | — | Purchase | 26,553 | $0.19 | $5,045 | 26,553 | Jun 6, 2022 |
| HANISH ARNOLD C | — | Purchase | 28,000 | $0.18 | $5,040 | 46,350 | Jun 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 28,000 | $0.18 | $5,040 | 148,319 | May 31, 2022 |
| Arthur David J. | Chief Executive Officer | Purchase | 708 | $0.18 | $127 | 282,382 | May 26, 2022 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 10,000 | $0.19 | $1,900 | 259,674 | May 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 10,000 | $0.19 | $1,900 | 120,319 | May 3, 2022 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 76,246 | $0.39 | $29,736 | 110,319 | Mar 3, 2022 |
| Arthur David J. | Chief Executive Officer | Purchase | 139,488 | $0.39 | $54,400 | 249,674 | Mar 3, 2022 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 7,939 | $0.72 | $5,716 | 110,186 | Nov 3, 2021 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 7,787 | $0.72 | $5,607 | 34,073 | Nov 3, 2021 |
| Arthur David J. | Chief Executive Officer | Purchase | 2,000 | $0.89 | $1,780 | 102,247 | Aug 17, 2021 |
| HANISH ARNOLD C | — | Purchase | 7,000 | $0.88 | $6,160 | 18,350 | Aug 10, 2021 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 9,563 | $0.57 | $5,451 | 26,286 | May 3, 2021 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 9,822 | $0.57 | $5,599 | 96,247 | May 3, 2021 |
| Arthur David J. | Chief Executive Officer | Award / Grant | 4,879 | $0.56 | $2,732 | 86,425 | Nov 3, 2020 |
| Rosenblum Mark J | Exec VP Finance, CFO | Award / Grant | 4,723 | $0.56 | $2,645 | 16,723 | Nov 3, 2020 |
| HANISH ARNOLD C | — | Purchase | 4,000 | $0.98 | $3,920 | 11,350 | Aug 21, 2020 |
| HANISH ARNOLD C | — | Purchase | 4,000 | $0.98 | $3,920 | 11,350 | Aug 21, 2020 |
| Arthur David J. | Chief Executive Officer | Purchase | 1,000 | $1.01 | $1,010 | 2,000 | Aug 19, 2020 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 5,000 | $1.00 | $5,000 | 12,000 | Aug 17, 2020 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 2,000 | $0.95 | $1,900 | 7,000 | Feb 19, 2020 |
| Jordan Scott | Chief Business Officer | Purchase | 11,300 | $0.90 | $10,170 | 31,609 | Feb 18, 2020 |
| Rosenblum Mark J | Exec VP Finance, CFO | Purchase | 5,000 | $0.86 | $4,300 | 5,000 | Feb 13, 2020 |
| HANISH ARNOLD C | — | Purchase | 4,350 | $1.15 | $5,003 | 7,350 | Feb 11, 2020 |
| McVicar William K. | — | Purchase | 8,700 | $1.15 | $10,005 | 8,700 | Feb 11, 2020 |
| Northrup Jonathan P | — | Purchase | 8,700 | $1.15 | $10,005 | 352,713 | Feb 11, 2020 |
| Burleson Tess | — | Purchase | 4,350 | $1.15 | $5,003 | 4,350 | Feb 11, 2020 |
| HANISH ARNOLD C | — | Purchase | 4,350 | $1.15 | $5,003 | 7,350 | Feb 11, 2020 |
| McCreedy Bruce J Jr. | — | Purchase | 8,700 | $1.15 | $10,005 | 8,700 | Feb 11, 2020 |
| Arthur David J. | Chief Executive Officer | Purchase | 2,175 | $1.15 | $2,501 | 81,546 | Feb 11, 2020 |