EXICURE, 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 |
|---|---|---|---|---|---|---|---|
| SANGSANGIN INVESTMENT & SECURITIES CO., LTD. | — | Sale | 433,332 | $8.71 | $3,774,322 | — | Dec 8, 2025 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 7 | $3.71 | $26 | 309 | Nov 16, 2025 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 9 | $6.65 | $60 | 316 | Aug 16, 2025 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 8 | $10.06 | $80 | 325 | May 16, 2025 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 9 | $10.03 | $90 | 333 | Feb 16, 2025 |
| HiTron Systems Inc. | — | Purchase | 2,900,000 | $3.00 | $8,700,000 | 3,333,333 | Dec 26, 2024 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 7 | $2.90 | $20 | 342 | Nov 16, 2024 |
| DGP Co., Ltd. | — | Purchase | 237,223 | $3.00 | $711,669 | 849,223 | Sep 12, 2024 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 38 | $0.36 | $14 | 1,743 | Aug 16, 2024 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 46 | $0.52 | $24 | 1,781 | May 16, 2024 |
| DGP Co., Ltd. | — | Sale | 3,400,000 | $1.32 | $4,488,000 | — | Feb 29, 2024 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 46 | $0.60 | $28 | 1,827 | Feb 16, 2024 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 38 | $0.57 | $22 | 1,873 | Nov 16, 2023 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 37 | $0.83 | $31 | 1,911 | Aug 16, 2023 |
| CBI USA, Inc. | — | C | 3,400,000 | $1.60 | $5,440,000 | 818,299 | Jun 23, 2023 |
| Miller Josh | Chief Accounting Officer | Tax Withholding | 185 | $1.07 | $198 | 1,948 | May 16, 2023 |
| CBI USA, Inc. | — | Purchase | 3,400,000 | $1.60 | $5,440,000 | 4,218,299 | Dec 15, 2022 |
| Muralidhar Bali | — | Purchase | 1,472,126 | $0.19 | $279,704 | 8,449,126 | May 19, 2022 |
| GATES WILLIAM H III | — | Sale | 1,268,619 | $0.24 | $304,469 | 5,064,703 | Dec 21, 2021 |
| Giljohann David A | Chief Executive Officer | Award / Grant | 7,500 | $0.91 | $6,825 | 38,666 | Nov 15, 2021 |
| Feltner Douglas E. | Chief Medical Officer | Award / Grant | 7,500 | $0.91 | $6,825 | 15,000 | Nov 15, 2021 |
| Papadimas Elias D. | Chief Accounting Officer | Purchase | 10,000 | $1.38 | $13,800 | 10,000 | Aug 27, 2021 |
| SCHROFF MATTHIAS | Chief Operating Officer | Award / Grant | 7,500 | $1.27 | $9,525 | 7,500 | May 14, 2021 |
| Giljohann David A | Chief Executive Officer | Award / Grant | 7,500 | $1.27 | $9,525 | 31,166 | May 14, 2021 |
| Feltner Douglas E. | Chief Medical Officer | Award / Grant | 7,500 | $1.27 | $9,525 | 7,500 | May 14, 2021 |
| Venkatesan Jay | — | Option Exercise | 9,310 | $0.65 | $6,052 | 311,544 | Jul 6, 2020 |
| AURASENSE LLC | — | Sale | 10,195 | $2.83 | $28,852 | 11,257,629 | Jun 12, 2020 |
| Mirkin Chad A. | — | Sale | 10,195 | $2.83 | $28,852 | 11,257,629 | Jun 12, 2020 |
| Mirkin Chad A. | — | Option Exercise | 49,649 | $0.65 | $32,272 | 64,649 | May 20, 2020 |
| WALT DAVID R | — | Purchase | 291,066 | $1.21 | $352,190 | 2,058,777 | Mar 13, 2020 |
| SNYDER DAVID S | Chief Financial Officer | Purchase | 18,248 | $1.40 | $25,547 | 18,248 | Mar 12, 2020 |
| Mirkin Chad A. | — | Purchase | 15,000 | $1.45 | $21,750 | 15,000 | Mar 12, 2020 |
| Muralidhar Bali | — | Purchase | 727,000 | $2.75 | $1,999,250 | 6,977,000 | Dec 19, 2019 |
| WALT DAVID R | — | Purchase | 1,000,000 | $2.00 | $2,000,000 | 1,767,711 | Aug 2, 2019 |
| Venkatesan Jay | — | Purchase | 250,000 | $2.00 | $500,000 | 302,234 | Aug 2, 2019 |
| Mirkin Chad A. | — | Purchase | 25,000 | $2.00 | $50,000 | 25,000 | Aug 2, 2019 |
| Mirkin Chad A. | — | Purchase | 500 | $2.30 | $1,150 | 27,267 | Mar 22, 2019 |
| Mirkin Chad A. | — | Purchase | 1,000 | $2.43 | $2,430 | 26,767 | Mar 21, 2019 |
| Giljohann David A | Chief Executive Officer | Purchase | 7,000 | $2.40 | $16,800 | 23,666 | Mar 19, 2019 |
| Mirkin Chad A. | — | Purchase | 1,000 | $2.40 | $2,400 | 25,767 | Mar 18, 2019 |
| Mirkin Chad A. | — | Purchase | 2,200 | $2.50 | $5,500 | 24,767 | Mar 13, 2019 |
| Tompkins Mark N. | — | Purchase | 166,667 | $3.00 | $500,001 | 1,825,667 | Sep 26, 2017 |
| Venkatesan Jay | — | Other | 90,192 | — | — | 90,192 | Sep 26, 2017 |
| Mirkin Chad A. | — | Other | 6,669 | — | — | 6,669 | Sep 26, 2017 |
| Thaxton Colby Shad | — | Other | 11,267,824 | — | — | 11,267,824 | Sep 26, 2017 |
| Giljohann David A | Chief Executive Officer | Purchase | 16,666 | $3.00 | $49,998 | 16,666 | Sep 26, 2017 |
| WALT DAVID R | — | Award / Grant | 499,378 | — | — | 499,378 | Sep 26, 2017 |
| Tompkins Mark N. | — | Award / Grant | 43,160 | — | — | 108,160 | Sep 22, 2017 |
| Jacobs Ian Seth | President, Secretary, CEO, CFO | Award / Grant | 38,160 | — | — | 103,160 | Sep 22, 2017 |
| Jacobs Ian Seth | President, Secretary, CEO, CFO | Sale | 35,000 | $0.03 | $1,050 | 65,000 | Jun 15, 2017 |