GILLIS STEVEN - Insider Trades & Share Buys/Sales

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
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Insider Trading Transactions for GILLIS STEVEN

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Common stock purchase or sale:

Transaction Date	Reported DateTime	Company	Symbol	Insider Relationship	Shares Traded	Average Price	Total Amount	Shares Owned	Filing
2026-05-04 Purchase	2026-05-04 6:02 pm	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	1,100,000	$18	$19,800,000	6,294,951 (Indirect)	View
2026-03-06 Purchase	2026-03-09 4:34 pm	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 BYBEE CLINTON 10% Owner	488,090	$25.61	$12,499,985	3,247,162 (Indirect)	View
2025-11-13 Sale	2025-11-14 6:34 pm	Metsera Inc.	MTSR	ARCH Venture Partners XII LLC ARCH Venture Fund XII L.P. ARCH Venture Partners XII L.P. ARCH Venture Fund XIII L.P. ARCH Venture Partners XIII L.P. ARCH Venture Partners XIII LLC CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT Director 10% Owner	26,816,808	$0	$0	0 (Indirect)	View
2025-10-27 Purchase	2025-10-29 7:21 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT BYBEE CLINTON 10% Owner	1,915,700	$2.61	$4,999,977	33,847,838 (Indirect)	View
2025-08-01 Purchase	2025-08-01 7:18 pm	Prime Medicine Inc.	PRME	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. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner	3,030,300	$3.3	$9,999,990	18,486,894 (Indirect)	View
2025-02-03 Purchase	2025-02-03 7:01 pm	Metsera Inc.	MTSR	ARCH Venture Partners XII LLC ARCH Venture Fund XII L.P. ARCH Venture Partners XII L.P. ARCH Venture Fund XIII L.P. ARCH Venture Partners XIII L.P. ARCH Venture Partners XIII LLC CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	2,222,222	$18	$39,999,996	8,313,680 (Indirect)	View
2024-04-02 Purchase	2024-04-04 4:30 pm	Boundless Bio Inc.	BOLD	CRANDELL KEITH BYBEE CLINTON NELSEN ROBERT GILLIS STEVEN 10% Owner	200,000	$16	$3,200,000	1,181,766 (Indirect)	View
2024-02-15 Purchase	2024-02-20 5:37 pm	Prime Medicine Inc.	PRME	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. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner	3,200,000	$6.25	$20,000,000	15,456,594 (Indirect)	View
2024-02-08 Purchase	2024-02-12 5:43 pm	Sana Biotechnology Inc.	SANA	CRANDELL KEITH BYBEE CLINTON Burow Kristina GILLIS STEVEN 10% Owner	1,818,181	$5.5	$9,999,996	22,747,272 (Indirect)	View
2023-11-13 Purchase	2023-11-15 6:54 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	35,010	$11.77	$412,140	4,131,207 (Indirect)	View
2023-11-08 Purchase	2023-11-13 7:00 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	140,605	$10.98	$1,543,563	4,096,197 (Indirect)	View
2023-11-03 Purchase	2023-11-07 6:59 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	95,694	$11.49	$1,099,945	3,955,592 (Indirect)	View
2023-09-28 Purchase	2023-09-29 6:53 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	76,511	$13.68	$1,046,848	3,859,898 (Indirect)	View
2023-09-26 Purchase	2023-09-27 8:18 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	58,504	$11.97	$700,464	3,783,387 (Indirect)	View
2023-09-22 Purchase	2023-09-25 9:38 pm	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	100,740	$11.19	$1,127,064	3,724,883 (Indirect)	View
2023-09-19 Purchase	2023-09-20 06:16 am	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners X LLC ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT BYBEE CLINTON 10% Owner	1,500,000	$17	$25,500,000	3,624,143 (Indirect)	View
2023-07-10 Purchase	2023-07-18 09:00 am	VBI Vaccines Inc	VBIV	GILLIS STEVEN Director	609,090	$1.65	$1,004,999	1,655,196 (Indirect Direct)	View
2022-10-24 Purchase	2022-10-26 8:01 pm	Prime Medicine Inc.	PRME	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. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner	800,000	$17	$13,600,000	6,128,297 (Indirect)	View
2022-09-13 Purchase	2022-09-15 6:54 pm	Codiak BioSciences Inc.	CDAK	GILLIS STEVEN Director	5,000,000	$0	$0	12,514,153 (Indirect Direct)	View

Stock options: Exercise, Award, Grant, Conversion

Transaction Date	Reported DateTime	Exercisable Expiration	Company	Symnbol	Insider Relationship	Shares Traded	Conversion Price	Shares Owned	Filing
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
2026-05-04 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
Ownership	2026-03-18 06:09 am	N/A N/A	TAKEDA PHARMACEUTICAL CO LTD	TAK	GILLIS STEVEN Director	0	$0	31,437 (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
2025-02-03 Conversion	2025-02-03 7:01 pm	N/A N/A	Metsera Inc.	MTSR	ARCH Venture Partners XII LLC ARCH Venture Fund XII L.P. ARCH Venture Partners XII L.P. ARCH Venture Fund XIII L.P. ARCH Venture Partners XIII L.P. ARCH Venture Partners XIII LLC CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	78,821,106	$0	8,313,680 (Indirect)	View
Ownership	2025-01-30 9:25 pm	N/A N/A	Metsera Inc.	MTSR	ARCH Venture Partners XII LLC ARCH Venture Fund XII L.P. ARCH Venture Partners XII L.P. ARCH Venture Fund XIII L.P. ARCH Venture Partners XIII L.P. ARCH Venture Partners XIII LLC CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT 10% Owner	0	$0	24,594,586 (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
2024-06-10 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	CRANDELL KEITH BYBEE CLINTON NELSEN ROBERT GILLIS STEVEN 10% Owner	4,851,442	$0	1,181,766 (Indirect)	View
Ownership	2024-03-27 7:56 pm	N/A N/A	Boundless Bio Inc.	BOLD	CRANDELL KEITH BYBEE CLINTON NELSEN ROBERT GILLIS STEVEN 10% Owner	0	$0	2,494,095 (Indirect)	View
2023-12-08 Other	2023-12-12 7:53 pm	N/A N/A	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT BYBEE CLINTON 10% Owner	1,879,654	$0	32,424,564 (Indirect)	View
2023-09-19 Conversion	2023-09-20 06:16 am	N/A N/A	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners X LLC ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT BYBEE CLINTON 10% Owner	17,424,704	$0	3,624,143 (Indirect)	View
Ownership	2023-09-14 9:29 pm	N/A N/A	Neumora Therapeutics Inc.	NMRA	ARCH Venture Partners X LLC ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. CRANDELL KEITH GILLIS STEVEN NELSEN ROBERT BYBEE CLINTON 10% Owner	0	$0	28,045,420 (Indirect)	View
2023-07-28 Other	2023-08-10 8:27 pm	N/A N/A	DA32 Life Science Tech Acquisition Corp.	DALS	ARCH Venture Fund XI L.P. ARCH Venture Partners XI L.P. ARCH Venture Partners XI LLC NELSEN ROBERT Burow Kristina GILLIS STEVEN 10% Owner	1,600,000	$0	2,250,000 (Direct)	View
2023-07-27 Option Award	2023-07-28 6:30 pm	N/A 2033-07-27	VBI Vaccines Inc	VBIV	GILLIS STEVEN Director	52,500	$0	52,500 (Direct)	View
2023-06-14 Option Award	2023-06-15 7:25 pm	N/A 2023-06-14	Homology Medicines Inc.	FIXX	GILLIS STEVEN Director	23,000	$0	23,000 (Direct)	View
2023-02-16 Exercise	2023-02-21 4:31 pm	N/A N/A	Codiak BioSciences Inc.	CDAK	GILLIS STEVEN Director	8,750	$0	8,750 (Direct)	View
2023-01-26 Option Award	2023-01-30 5:03 pm	N/A 2033-01-26	VBI Vaccines Inc	VBIV	GILLIS STEVEN Director	75,000	$0	75,000 (Direct)	View
2022-10-24 Conversion	2022-10-26 8:01 pm	N/A N/A	Prime Medicine Inc.	PRME	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. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner	41,344,576	$0	6,128,297 (Indirect)	View
Ownership	2022-10-19 8:08 pm	N/A N/A	Prime Medicine Inc.	PRME	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. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner	0	$0	11,456,594 (Indirect)	View
2022-06-17 Option Award	2022-06-21 4:45 pm	N/A 2032-06-16	Codiak BioSciences Inc.	CDAK	GILLIS STEVEN Director	9,000	$0	9,000 (Direct)	View
2022-06-15 Option Award	2022-06-17 4:06 pm	N/A 2032-06-15	Homology Medicines Inc.	FIXX	GILLIS STEVEN Director	18,000	$0	18,000 (Direct)	View
2022-02-16 Option Award	2022-02-18 4:06 pm	N/A N/A	Codiak BioSciences Inc.	CDAK	GILLIS STEVEN Director	8,750	$0	8,750 (Direct)	View
2022-01-27 Option Award	2022-01-31 5:52 pm	N/A 2032-01-27	VBI Vaccines Inc	VBIV	GILLIS STEVEN Director	100,000	$0	100,000 (Direct)	View

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GILLIS STEVEN - Insider Trading & Ownership