ARCH Venture Partners IX LLC - 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 ARCH Venture Partners IX LLC

Common stock purchase or sale:

Transaction Date	Reported DateTime	Company	Symbol	Insider Relationship	Shares Traded	Average Price	Total Amount	Shares Owned	Filing
2026-07-01 Sale	2026-07-06 5:43 pm	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	16,000	$2.49	$39,840	2,694,095 (Indirect)	View
2026-03-06 Purchase	2026-03-09 4:36 pm	Lyell Immunopharma Inc.	LYEL	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. 10% Owner	488,090	$25.61	$12,499,985	3,247,162 (Indirect)	View
2024-04-02 Purchase	2024-04-04 4:30 pm	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	200,000	$16	$3,200,000	1,181,766 (Indirect)	View
2024-02-08 Purchase	2024-02-12 5:43 pm	Sana Biotechnology Inc.	SANA	ARCH Venture Fund X L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	1,818,181	$5.5	$9,999,996	22,747,272 (Indirect)	View

Stock options: Exercise, Award, Grant, Conversion

Transaction Date	Reported DateTime	Exercisable Expiration	Company	Symnbol	Insider Relationship	Shares Traded	Conversion Price	Shares Owned	Filing
2026-07-01 Exercise	2026-07-06 5:43 pm	N/A 2035-06-22	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	16,000	$0	2,694,095 (Indirect)	View
2026-07-01 Exercise	2026-07-06 5:43 pm	N/A N/A	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	16,000	$1.03	2,694,095 (Indirect)	View
2024-04-02 Conversion	2024-04-04 4:30 pm	N/A N/A	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	4,851,442	$0	1,181,766 (Indirect)	View
Ownership	2024-03-27 7:50 pm	N/A N/A	Boundless Bio Inc.	BOLD	ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. ARCH Venture Fund X Overage L.P. ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Partners IX LLC ARCH Venture Partners X LLC 10% Owner	0	$0	2,494,095 (Indirect)	View
2022-09-02 Other	2022-09-07 8:29 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	1,035,018	$0	1,126,748 (Indirect)	View
2022-08-30 Other	2022-09-01 5:20 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	1,035,006	$0	1,117,864 (Indirect)	View
2022-08-24 Other	2022-08-26 5:12 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	1,035,006	$0	1,109,010 (Indirect)	View
2022-08-18 Other	2022-08-22 5:14 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	517,503	$0	582,653 (Indirect)	View
2022-08-12 Other	2022-08-16 9:04 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	1,552,509	$0	1,613,232 (Indirect)	View
2022-06-08 Other	2022-06-10 9:27 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	517,503	$0	564,945 (Indirect)	View
2022-06-02 Other	2022-06-06 8:24 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	517,502	$0	10,955,581 (Indirect)	View
2021-12-20 Other	2021-12-22 5:59 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	1,811,207	$0	12,527,079 (Indirect)	View
2021-11-29 Other	2021-12-01 6:30 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	517,485	$0	12,205,620 (Indirect)	View
2021-11-22 Other	2021-11-24 5:58 pm	N/A N/A	Vir Biotechnology Inc.	VIR	ARCH Venture Partners IX LLC ARCH Venture Partners IX L.P. ARCH Venture Partners IX Overage L.P. ARCH Venture Fund IX L.P. ARCH Venture Fund IX Overage L.P. CRANDELL KEITH BYBEE CLINTON 10% Owner	517,485	$0	12,483,411 (Indirect)	View

ARCH Venture Partners IX LLC - Insider Trading & Ownership