DCOY Insider Transactions
133 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
DCOY insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| HANISH ARNOLD C | Director | 2025-12-30 | Sale | 12.0 | $0.64 |
| HANISH ARNOLD C | Director | 2025-12-30 | Sale | 15.0 | $0.64 |
| HANISH ARNOLD C | Director | 2025-11-20 | Purchase | 5,000.0 | $0.75 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2025-11-20 | Purchase | 20,000.0 | $0.8 |
| Burleson Tess | Director | 2022-06-07 | Purchase | 27,700.0 | $0.18 |
| Lieber Jonathan I | Director | 2022-06-07 | Purchase | 37,500.0 | $0.19 |
| McVicar William K. | Director | 2022-06-06 | Purchase | 26,553.0 | $0.19 |
| HANISH ARNOLD C | Director | 2022-06-03 | Purchase | 28,000.0 | $0.18 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2022-05-31 | Purchase | 28,000.0 | $0.18 |
| Arthur David J. | Chief Executive Officer | 2022-05-26 | Purchase | 10,800.0 | $0.18 |
| Arthur David J. | Chief Executive Officer | 2022-05-26 | Purchase | 10,392.0 | $0.18 |
| Arthur David J. | Chief Executive Officer | 2022-05-26 | Purchase | 708.0 | $0.18 |
| Arthur David J. | Chief Executive Officer | 2022-05-26 | Purchase | 18,600.0 | $0.18 |
| Arthur David J. | Chief Executive Officer | 2022-05-26 | Purchase | 3,400.0 | $0.18 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2022-03-03 | Purchase | 76,246.0 | $0.39 |
| Arthur David J. | Chief Executive Officer | 2022-03-03 | Purchase | 139,488.0 | $0.39 |
| Arthur David J. | Chief Executive Officer | 2021-08-17 | Purchase | 2,000.0 | $0.89 |
| Arthur David J. | Chief Executive Officer | 2021-08-17 | Purchase | 2,000.0 | $0.9 |
| HANISH ARNOLD C | Director | 2021-08-10 | Purchase | 7,000.0 | $0.88 |
| HANISH ARNOLD C | Director | 2020-08-21 | Purchase | 4,000.0 | $0.98 |
| HANISH ARNOLD C | Director | 2020-08-21 | Purchase | 4,000.0 | $0.98 |
| Arthur David J. | Chief Executive Officer | 2020-08-19 | Purchase | 1,000.0 | $1.01 |
| Arthur David J. | Chief Executive Officer | 2020-08-19 | Purchase | 1,000.0 | $1.01 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2020-08-17 | Purchase | 5,000.0 | $1.0 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2020-02-19 | Purchase | 2,000.0 | $0.95 |
| Jordan Scott | Chief Business Officer | 2020-02-18 | Purchase | 11,300.0 | $0.9 |
| Rosenblum Mark J | Exec VP Finance, CFO | 2020-02-13 | Purchase | 5,000.0 | $0.86 |
| HANISH ARNOLD C | Director | 2020-02-11 | Purchase | 4,350.0 | $1.15 |
| McVicar William K. | Director | 2020-02-11 | Purchase | 8,700.0 | $1.15 |
| Northrup Jonathan P | Director | 2020-02-11 | Purchase | 8,700.0 | $1.15 |
| Burleson Tess | Director | 2020-02-11 | Purchase | 4,350.0 | $1.15 |
| HANISH ARNOLD C | Director | 2020-02-11 | Purchase | 4,350.0 | $1.15 |
| McCreedy Bruce J Jr. | Director | 2020-02-11 | Purchase | 8,700.0 | $1.15 |
| Arthur David J. | Chief Executive Officer | 2020-02-11 | Purchase | 2,175.0 | $1.15 |
| HANISH ARNOLD C | Director | 2019-11-25 | Purchase | 3,000.0 | $3.59 |
| HANISH ARNOLD C | Director | 2019-11-25 | Purchase | 3,000.0 | $3.59 |
| HANISH ARNOLD C | Director | 2019-11-25 | Purchase | 3,000.0 | $3.59 |
| Boston Foundation, Inc. | TenPercentOwner | 2019-01-30 | Sale | 1,600,000.0 | $0.33 |
| Boston Foundation, Inc. | TenPercentOwner | 2019-01-09 | Sale | 337,000.0 | $0.37 |
| Boston Foundation, Inc. | TenPercentOwner | 2019-01-08 | Sale | 263,000.0 | $0.4 |
| Longwood Fund II, L.P. | TenPercentOwner | 2018-10-16 | Sale | 3,212,861.0 | $0.92 |
| Westphal Christoph H | TenPercentOwner | 2018-10-16 | Sale | 3,212,861.0 | $0.92 |
| Westphal Christoph H | President and CEO | 2016-11-08 | Purchase | 7,000.0 | $7.31 |
| Westphal Christoph H | President and CEO | 2016-11-07 | Purchase | 8,870.0 | $5.7 |
| McCabe John P. | VP of Finance & Treasurer | 2016-11-07 | Purchase | 1,650.0 | $6.01 |
| Westphal Christoph H | President and CEO | 2016-06-23 | Purchase | 2,700.0 | $11.28 |
| Westphal Christoph H | President and CEO | 2016-06-22 | Purchase | 2,900.0 | $11.03 |
| Westphal Christoph H | President and CEO | 2016-06-21 | Purchase | 2,800.0 | $11.07 |
| Westphal Christoph H | President and CEO | 2016-06-20 | Purchase | 3,000.0 | $11.37 |
| Westphal Christoph H | President and CEO | 2016-06-17 | Purchase | 3,000.0 | $10.98 |
| Westphal Christoph H | President and CEO | 2016-06-16 | Purchase | 2,900.0 | $11.1 |
| Westphal Christoph H | President and CEO | 2016-06-15 | Purchase | 2,900.0 | $11.24 |
| Westphal Christoph H | President and CEO | 2016-06-14 | Purchase | 3,000.0 | $11.19 |
| Westphal Christoph H | President and CEO | 2016-06-13 | Purchase | 2,900.0 | $11.9 |
| Westphal Christoph H | President and CEO | 2016-06-10 | Purchase | 3,000.0 | $11.83 |
| Westphal Christoph H | President and CEO | 2016-06-09 | Purchase | 3,000.0 | $12.04 |
| Westphal Christoph H | President and CEO | 2016-06-08 | Purchase | 2,900.0 | $12.24 |
| Westphal Christoph H | President and CEO | 2016-06-07 | Purchase | 3,000.0 | $12.26 |
| Westphal Christoph H | President and CEO | 2016-06-06 | Purchase | 3,000.0 | $12.33 |
| Westphal Christoph H | President and CEO | 2016-06-03 | Purchase | 3,000.0 | $12.79 |
| Westphal Christoph H | President and CEO | 2016-06-02 | Purchase | 5,000.0 | $13.22 |
| Westphal Christoph H | President and CEO | 2016-06-01 | Purchase | 5,000.0 | $12.76 |
| Westphal Christoph H | President and CEO | 2016-05-31 | Purchase | 5,000.0 | $12.66 |
| Westphal Christoph H | President and CEO | 2016-05-27 | Purchase | 17,300.0 | $12.68 |
| Westphal Christoph H | President and CEO | 2016-05-26 | Purchase | 16,300.0 | $12.53 |
| Westphal Christoph H | President and CEO | 2016-05-25 | Purchase | 12,300.0 | $13.25 |
| Westphal Christoph H | President and CEO | 2016-05-24 | Purchase | 16,967.0 | $12.5 |
| Westphal Christoph H | President and CEO | 2016-05-23 | Purchase | 13,367.0 | $12.31 |
| Westphal Christoph H | President and CEO | 2016-05-20 | Purchase | 1,000.0 | $11.44 |
| Westphal Christoph H | President and CEO | 2016-05-19 | Purchase | 6,914.0 | $11.0 |
| Westphal Christoph H | President and CEO | 2016-05-18 | Purchase | 15,200.0 | $11.05 |
| Westphal Christoph H | President and CEO | 2016-05-17 | Purchase | 18,200.0 | $11.14 |
| Westphal Christoph H | President and CEO | 2016-05-16 | Purchase | 8,200.0 | $10.4 |
| Westphal Christoph H | President and CEO | 2016-05-13 | Purchase | 7,269.0 | $10.09 |
| Westphal Christoph H | President and CEO | 2016-05-12 | Purchase | 16,097.0 | $9.94 |
| Westphal Christoph H | President and CEO | 2016-05-11 | Purchase | 14,120.0 | $10.33 |
| Westphal Christoph H | President and CEO | 2016-05-10 | Purchase | 12,577.0 | $10.14 |
| Westphal Christoph H | President and CEO | 2016-05-09 | Purchase | 17,532.0 | $9.8 |
| Westphal Christoph H | President and CEO | 2016-03-24 | Purchase | 24,207.0 | $10.55 |
| Westphal Christoph H | President and CEO | 2016-03-23 | Purchase | 25,356.0 | $11.55 |
| Westphal Christoph H | President and CEO | 2016-03-22 | Purchase | 23,951.0 | $11.78 |
| SCULLEY JOHN | Director | 2016-03-21 | Purchase | 4,000.0 | $12.06 |
| Westphal Christoph H | President and CEO | 2016-03-21 | Purchase | 23,951.0 | $11.78 |
| Westphal Christoph H | President and CEO | 2016-03-21 | Purchase | 24,107.0 | $11.7 |
| SCULLEY JOHN | Director | 2016-03-18 | Purchase | 709.0 | $11.13 |
| Westphal Christoph H | President and CEO | 2016-03-18 | Purchase | 18,437.0 | $11.06 |
| Westphal Christoph H | President and CEO | 2016-03-17 | Purchase | 19,137.0 | $10.94 |
| Westphal Christoph H | President and CEO | 2016-03-16 | Purchase | 19,142.0 | $10.85 |
| Westphal Christoph H | President and CEO | 2016-03-15 | Purchase | 19,237.0 | $9.62 |
| Stacy Michelle | Director | 2016-03-15 | Purchase | 2,585.0 | $9.63 |
| Wessel Thomas | Chief Medical Officer | 2016-03-14 | Purchase | 8,000.0 | $9.13 |
| Longwood Fund II, L.P. | TenPercentOwner | 2016-03-11 | Purchase | 89,680.0 | $7.0 |
| Westphal Christoph H | President and CEO | 2016-03-11 | Purchase | 89,680.0 | $7.0 |
| Wessel Thomas | Chief Medical Officer | 2016-03-11 | Purchase | 12,000.0 | $7.15 |
| MacKinnon Roderick | Director | 2016-03-11 | Purchase | 10,000.0 | $7.03 |
| Westphal Christoph H | President and CEO | 2015-12-14 | Purchase | 927.0 | $12.01 |
| Westphal Christoph H | President and CEO | 2015-12-07 | Purchase | 907.0 | $12.02 |
| Westphal Christoph H | President and CEO | 2015-11-30 | Purchase | 887.0 | $12.32 |
| Westphal Christoph H | President and CEO | 2015-11-23 | Purchase | 971.0 | $11.39 |
| KOZIN MARC D | Director | 2015-11-19 | Purchase | 4,500.0 | $11.38 |