Atlas Venture Life Science Advisors, LLC Long-Term Concentrated

Name: Atlas Venture Life Science Advisors, LLC Q4 2022 13F Filing | 13F Explorer
Creator: Atlas Venture Life Science Advisors, LLC
Published: 2023-02-14

Location: Cambridge, MA

CIK: 0001917529 · Show all filings

Period: Q4 2022 (← Previous) (Next →)

Filing Date: Feb 14, 2023

Total Value: $830M (100.0% shares, 0.0% debt)

Holdings (17)

DAWN Day One Biopharmaceuticals, Inc. 19.6%

Value $163M Shares 7,568,317 Est. Cost $19.68 Unrealized +4.2%

KYMR Kymera Therapeutics, Inc. 18.0%

Value $149M Shares 5,984,736 Est. Cost $58.25 Unrealized -54.2%

DYN Dyne Therapeutics, Inc. 13.8%

Value $114M Shares 9,869,483 Est. Cost $13.82 Unrealized -16.3%

— Vigil Neuroscience, Inc. 8.8%

Value $72.96M Shares 5,836,874 Est. Cost $7.03 Unrealized —

IRON Disc Medicine, Inc. 8.3%

Value $68.85M Shares 3,461,784 Est. Cost $49.79 Unrealized 0.0%

— Aerovate Therapeutics, Inc. 7.1%

Value $59.11M Shares 2,017,521 Est. Cost $11.79 Unrealized —

REPL Replimune Group, Inc. 6.9%

Value $57.07M Shares 2,098,300 Est. Cost $29.91 Unrealized -30.5%

— Third Harmonic Bio, Inc. 5.6%

Value $46.9M Shares 10,907,859 Est. Cost $18.97 Unrealized —

— Akero Therapeutics, Inc. 3.9%

Value $32.56M Shares 594,251 Est. Cost $21.15 Unrealized —

— Generation Bio, Co. 3.9%

Value $32.54M Shares 8,278,876 Est. Cost $7.08 Unrealized —

— Ikena Oncology, Inc. 1.6%

Value $13.35M Shares 5,018,178 Est. Cost $12.54 Unrealized —

XLO Xilio Therapeutics, Inc. 0.9%

Value $7.423M Shares 2,759,344 Est. Cost $17.03 Unrealized -85.9%

— F-star Therapeutics, Inc. 0.5%

Value $3.789M Shares 599,524 Est. Cost $5.02 Unrealized —

— AVROBIO INC 0.4%

Value $3.223M Shares 4,520,863 Est. Cost $3.85 Unrealized —

VRDN Viridian Therapeutics, Inc. 0.3%

Value $2.631M Shares 90,072 Est. Cost $18.63 Unrealized +23.7%

SPRO SPERO THERAPEUTICS INC 0.2%

Value $1.784M Shares 1,031,160 Est. Cost $15.88 Unrealized -88.2%

— MAGENTA THERAPEUTICS INC 0.2%

Value $1.373M Shares 3,476,536 Est. Cost $4.43 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
DAWN	Day One Biopharmaceuticals, Inc.	7,568,317	$163M	19.6%	$19.68	+4.2%	Common Stock	23954D109
KYMR	Kymera Therapeutics, Inc.	5,984,736	$149M	18.0%	$58.25	-54.2%	Common Stock	501575104
DYN	Dyne Therapeutics, Inc.	9,869,483	$114M	13.8%	$13.82	-16.3%	Common Stock	26818M108
—	Vigil Neuroscience, Inc.	5,836,874	$72.96M	8.8%	$7.03	—	Common Stock	92673K108
IRON	Disc Medicine, Inc.	3,461,784	$68.85M	8.3%	$49.79	0.0%	Common Stock	254604101
—	Aerovate Therapeutics, Inc.	2,017,521	$59.11M	7.1%	$11.79	—	Common Stock	008064107
REPL	Replimune Group, Inc.	2,098,300	$57.07M	6.9%	$29.91	-30.5%	Common Stock	76029N106
—	Third Harmonic Bio, Inc.	10,907,859	$46.9M	5.6%	$18.97	—	Common Stock	88427A107
—	Akero Therapeutics, Inc.	594,251	$32.56M	3.9%	$21.15	—	Common Stock	00973Y108
—	Generation Bio, Co.	8,278,876	$32.54M	3.9%	$7.08	—	Common Stock	37148K100
—	Ikena Oncology, Inc.	5,018,178	$13.35M	1.6%	$12.54	—	Common Stock	45175G108
XLO	Xilio Therapeutics, Inc.	2,759,344	$7.423M	0.9%	$17.03	-85.9%	Common Stock	98422T100
—	F-star Therapeutics, Inc.	599,524	$3.789M	0.5%	$5.02	—	Common Stock	30315R107
—	AVROBIO INC	4,520,863	$3.223M	0.4%	$3.85	—	Common Stock	05455M100
VRDN	Viridian Therapeutics, Inc.	90,072	$2.631M	0.3%	$18.63	+23.7%	Common Stock	92790C104
SPRO	SPERO THERAPEUTICS INC	1,031,160	$1.784M	0.2%	$15.88	-88.2%	Common Stock	84833T103
—	MAGENTA THERAPEUTICS INC	3,476,536	$1.373M	0.2%	$4.43	—	Common Stock	55910K108