Atlas Venture Life Science Advisors, LLC Long-Term Concentrated

CIK: 0001917529 · Show all filings

Period: Q3 2023 (← Previous) (Next →)

Filing Date: Nov 13, 2023

Total Value ($000): $645,631 (100.0% shares, 0.0% debt)

Holdings (15)

IRON Disc Medicine, Inc. 20.0%

Value ($000) $128,976 Shares 2,745,335 Est. Cost $49.79 Unrealized +0.5%

DAWN Day One Biopharmaceuticals, Inc. 14.5%

Value ($000) $93,355 Shares 7,608,394 Est. Cost $19.68 Unrealized -33.7%

DYN Dyne Therapeutics, Inc. 13.7%

Value ($000) $88,574 Shares 9,885,449 Est. Cost $13.82 Unrealized -22.1%

KYMR Kymera Therapeutics, Inc. 12.6%

Value ($000) $81,430 Shares 5,858,262 Est. Cost $58.25 Unrealized -65.5%

— Third Harmonic Bio, Inc. 10.8%

Value ($000) $69,701 Shares 10,907,859 Est. Cost $18.97 Unrealized —

REPL Replimune Group, Inc. 5.6%

Value ($000) $35,902 Shares 2,098,300 Est. Cost $29.91 Unrealized -34.3%

— Vigil Neuroscience, Inc. 4.9%

Value ($000) $31,461 Shares 5,836,874 Est. Cost $7.03 Unrealized —

— Generation Bio, Co. 4.9%

Value ($000) $31,379 Shares 8,279,484 Est. Cost $7.08 Unrealized —

— Aerovate Therapeutics, Inc. 4.3%

Value ($000) $27,673 Shares 2,039,249 Est. Cost $11.88 Unrealized —

— Ikena Oncology, Inc. 3.4%

Value ($000) $21,729 Shares 5,018,178 Est. Cost $12.54 Unrealized —

— Akero Therapeutics, Inc. 2.8%

Value ($000) $18,171 Shares 359,251 Est. Cost $21.15 Unrealized —

— AvroBio, Inc. 1.1%

Value ($000) $6,994 Shares 4,541,381 Est. Cost $3.85 Unrealized —

XLO Xilio Therapeutics, Inc. 0.9%

Value ($000) $5,822 Shares 2,759,344 Est. Cost $17.03 Unrealized -84.4%

DNTH Dianthus Therapeutics, Inc. 0.5%

Value ($000) $3,240 Shares 236,979 Est. Cost $12.62 Unrealized 0.0%

SPRO Spero Therapeutics, Inc. 0.2%

Value ($000) $1,226 Shares 1,013,438 Est. Cost $15.88 Unrealized -91.3%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
IRON	Disc Medicine, Inc.	2,745,335	$128,976	20.0%	$49.79	+0.5%	Common Stock	254604101
DAWN	Day One Biopharmaceuticals, Inc.	7,608,394	$93,355	14.5%	$19.68	-33.7%	Common Stock	23954D109
DYN	Dyne Therapeutics, Inc.	9,885,449	$88,574	13.7%	$13.82	-22.1%	Common Stock	26818M108
KYMR	Kymera Therapeutics, Inc.	5,858,262	$81,430	12.6%	$58.25	-65.5%	Common Stock	501575104
—	Third Harmonic Bio, Inc.	10,907,859	$69,701	10.8%	$18.97	—	Common Stock	88427A107
REPL	Replimune Group, Inc.	2,098,300	$35,902	5.6%	$29.91	-34.3%	Common Stock	76029N106
—	Vigil Neuroscience, Inc.	5,836,874	$31,461	4.9%	$7.03	—	Common Stock	92673K108
—	Generation Bio, Co.	8,279,484	$31,379	4.9%	$7.08	—	Common Stock	37148K100
—	Aerovate Therapeutics, Inc.	2,039,249	$27,673	4.3%	$11.88	—	Common Stock	008064107
—	Ikena Oncology, Inc.	5,018,178	$21,729	3.4%	$12.54	—	Common Stock	45175G108
—	Akero Therapeutics, Inc.	359,251	$18,171	2.8%	$21.15	—	Common Stock	00973Y108
—	AvroBio, Inc.	4,541,381	$6,994	1.1%	$3.85	—	Common Stock	05455M100
XLO	Xilio Therapeutics, Inc.	2,759,344	$5,822	0.9%	$17.03	-84.4%	Common Stock	98422T100
DNTH	Dianthus Therapeutics, Inc.	236,979	$3,240	0.5%	$12.62	0.0%	Common Stock	252828108
SPRO	Spero Therapeutics, Inc.	1,013,438	$1,226	0.2%	$15.88	-91.3%	Common Stock	84833T103