Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-11-02 Conversion | 2026-11-02 9:50 pm | N/A N/A | Aspen Neuroscience Inc. | ASPE | ARCH Venture Fund X L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners X L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners X LLC CRANDELL KEITH Burow Kristina GILLIS STEVEN NELSEN ROBERT 10% Owner | 2,421,589 | $0 | 2,361,074 (Direct) | View |
Ownership | 2026-10-29 8:11 pm | N/A N/A | Aspen Neuroscience Inc. | ASPE | ARCH Venture Fund X L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners X L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners X LLC CRANDELL KEITH Burow Kristina GILLIS STEVEN NELSEN ROBERT 10% Owner | 0 | $0 | 2,421,589 (Direct) | View |
| 2026-10-19 Conversion | 2026-10-19 5:38 pm | N/A N/A | CITY THERAPEUTICS INC. | CTY | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner | 20,641,433 | $0 | 13,692,507 (Indirect) | View |
Ownership | 2026-10-15 9:16 pm | N/A N/A | CITY THERAPEUTICS INC. | CTY | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner | 0 | $0 | 13,522,507 (Indirect) | View |
| 2026-07-01 Exercise | 2026-07-06 5:44 pm | N/A 2035-06-22 | Boundless Bio Inc. | BOLD | CRANDELL KEITH BYBEE CLINTON NELSEN ROBERT GILLIS STEVEN Burow Kristina 10% Owner | 16,000 | $0 | 2,694,095 (Indirect) | View |
| 2026-07-01 Exercise | 2026-07-06 5:44 pm | N/A N/A | Boundless Bio Inc. | BOLD | CRANDELL KEITH BYBEE CLINTON NELSEN ROBERT GILLIS STEVEN Burow Kristina 10% Owner | 16,000 | $1.03 | 2,694,095 (Indirect) | View |
| 2026-06-17 Conversion | 2026-06-22 7:39 pm | N/A N/A | Kardigan Inc. | KARD | ARCH Venture Partners XIII LLC ARCH Venture Partners XIII L.P. ARCH Venture Fund XIII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN Director 10% Owner | 22,451,023 | $0 | 13,792,035 (Indirect) | View |
Ownership | 2026-06-18 06:15 am | N/A N/A | Kardigan Inc. | KARD | ARCH Venture Partners XIII LLC ARCH Venture Partners XIII L.P. ARCH Venture Fund XIII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN Director 10% Owner | 0 | $0 | 14,668,075 (Indirect) | View |
| 2026-06-04 Option Award | 2026-06-08 4:52 pm | N/A 2036-06-04 | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 11,149 | $0 | 2,467,731 (Direct) | View |
| 2026-05-27 Option Award | 2026-05-29 4:34 pm | N/A 2036-05-26 | Neumora Therapeutics Inc. | NMRA | Burow Kristina Director 10% Owner | 80,000 | $0 | 80,000 (Direct) | View |
| 2026-05-04 Conversion | 2026-05-04 6:02 pm | N/A N/A | Seaport Therapeutics Inc. | SPTX | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN 10% Owner | 5,194,951 | $0 | 6,294,951 (Indirect) | View |
Ownership | 2026-04-30 8:09 pm | N/A N/A | Seaport Therapeutics Inc. | SPTX | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN 10% Owner | 0 | $0 | 5,194,951 (Indirect) | View |
| 2026-04-23 Exercise | 2026-04-24 4:05 pm | N/A 2031-05-27 | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 89,800 | $0 | 2,456,582 (Direct) | View |
| 2026-04-23 Exercise | 2026-04-24 4:05 pm | N/A N/A | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 7,800 | $26.78 | 2,456,582 (Direct) | View |
| 2026-04-23 Exercise | 2026-04-24 4:05 pm | N/A N/A | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 36,000 | $9.11 | 2,456,582 (Direct) | View |
| 2026-04-23 Exercise | 2026-04-24 4:05 pm | N/A N/A | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 18,000 | $8.36 | 2,456,582 (Direct) | View |
| 2026-04-23 Exercise | 2026-04-24 4:05 pm | N/A N/A | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 28,000 | $4.75 | 2,456,582 (Direct) | View |
| 2025-11-13 Option Award | 2025-11-13 9:10 pm | N/A N/A | Metsera Inc. | MTSR | Burow Kristina Director | 2,688 | $0 | 2,688 (Direct) | View |
Ownership | 2025-07-29 9:23 pm | N/A N/A | Lyell Immunopharma Inc. | LYEL | ARCH Venture Fund XIII L.P. ARCH Venture Partners XIII L.P. ARCH Venture Partners XIII LLC CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN BERNS PAUL L 10% Owner | 0 | $0 | 938,438 (Indirect) | View |
| 2025-06-23 Option Award | 2025-06-23 5:11 pm | N/A 2035-06-22 | Boundless Bio Inc. | BOLD | Burow Kristina Director 10% Owner | 16,000 | $0 | 16,000 (Direct) | View |
| 2025-05-28 Option Award | 2025-05-30 6:30 pm | N/A 2033-09-14 | Neumora Therapeutics Inc. | NMRA | Burow Kristina Director 10% Owner | 155,026 | $0 | 155,026 (Direct) | View |
| 2025-05-22 Option Award | 2025-05-23 4:45 pm | N/A 2035-05-22 | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 16,838 | $0 | 2,381,388 (Direct) | View |
| 2025-05-20 Option Award | 2025-05-22 7:39 pm | N/A 2035-05-19 | Metsera Inc. | MTSR | Burow Kristina Director | 16,125 | $0 | 16,125 (Direct) | View |
| 2025-02-13 Option Award | 2025-02-18 4:30 pm | N/A 2033-09-14 | Neumora Therapeutics Inc. | NMRA | Burow Kristina Director 10% Owner | 75,026 | $0 | 75,026 (Direct) | View |
| 2025-02-03 Conversion | 2025-02-03 7:15 pm | N/A N/A | Metsera Inc. | MTSR | Burow Kristina Director 10% Owner | 78,821,106 | $0 | 8,313,680 (Indirect) | View |
Ownership | 2025-01-30 9:42 pm | N/A N/A | Metsera Inc. | MTSR | Burow Kristina Director 10% Owner | 0 | $0 | 24,743,539 (Indirect) | View |
Ownership | 2025-01-30 4:42 pm | N/A N/A | Maze Therapeutics Inc. | MAZE | ARCH Venture Partners X LLC ARCH Venture Partners X L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Fund X L.P. ARCH Venture Fund X Overage L.P. NELSEN ROBERT CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner | 0 | $0 | 37,588,634 (Indirect) | View |
| 2024-06-27 Option Award | 2024-07-01 6:19 pm | N/A 2034-06-27 | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 31,500 | $0 | 2,382,550 (Direct) | View |
| 2024-06-13 Option Award | 2024-06-14 4:11 pm | N/A 2034-06-12 | Neumora Therapeutics Inc. | NMRA | Burow Kristina Director 10% Owner | 48,671 | $0 | 32,008,426 (Direct) | View |
| 2024-06-10 Conversion | 2024-06-10 7:46 pm | N/A N/A | Rapport Therapeutics Inc. | RAPP | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN 10% Owner | 35,652,876 | $0 | 3,728,738 (Indirect) | View |
Ownership | 2024-06-06 7:14 pm | N/A N/A | Rapport Therapeutics Inc. | RAPP | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH NELSEN ROBERT Burow Kristina GILLIS STEVEN 10% Owner | 0 | $0 | 3,728,738 (Indirect) | View |
| 2024-04-02 Conversion | 2024-04-04 4:30 pm | N/A N/A | Boundless Bio Inc. | BOLD | Burow Kristina Director 10% Owner | 4,851,442 | $0 | 1,181,766 (Indirect) | View |
| 2024-03-27 Option Award | 2024-03-29 4:30 pm | N/A 2034-03-26 | Boundless Bio Inc. | BOLD | Burow Kristina Director 10% Owner | 26,438 | $0 | 26,438 (Direct) | View |
Ownership | 2024-03-27 8:11 pm | N/A N/A | Boundless Bio Inc. | BOLD | Burow Kristina Director 10% Owner | 0 | $0 | 2,494,095 (Indirect) | View |
| 2023-12-21 Other | 2023-12-26 5:36 pm | N/A N/A | Scholar Rock Holding Corp | SRRK | Burow Kristina Director | 297,245 | $0 | 2,648,295 (Indirect) | View |
| 2023-12-08 Other | 2023-12-12 7:52 pm | N/A N/A | Neumora Therapeutics Inc. | NMRA | Burow Kristina Director 10% Owner | 1,893,651 | $0 | 34,275,819 (Indirect) | View |