Atlas Venture Life Science Advisors, LLC Long-Term Concentrated

Name: Atlas Venture Life Science Advisors, LLC Q2 2023 13F Filing | 13F Explorer
Creator: Atlas Venture Life Science Advisors, LLC
Published: 2023-08-11

Location: Cambridge, MA

CIK: 0001917529 · Show all filings

Period: Q2 2023 (← Previous) (Next →)

Filing Date: Aug 11, 2023

Total Value: $804M (100.0% shares, 0.0% debt)

Holdings (15)

IRON Disc Medicine, Inc. 19.1%

Value $154M Shares 3,461,784 Est. Cost $49.79 Unrealized -28.7%

KYMR Kymera Therapeutics, Inc. 16.8%

Value $135M Shares 5,858,262 Est. Cost $58.25 Unrealized -50.8%

DYN Dyne Therapeutics, Inc. 13.8%

Value $111M Shares 9,885,449 Est. Cost $13.82 Unrealized -14.6%

DAWN Day One Biopharmaceuticals, Inc. 11.3%

Value $90.84M Shares 7,608,394 Est. Cost $19.68 Unrealized -33.6%

— Vigil Neuroscience, Inc. 6.8%

Value $54.87M Shares 5,836,874 Est. Cost $7.03 Unrealized —

— Third Harmonic Bio, Inc. 6.5%

Value $52.47M Shares 10,907,859 Est. Cost $18.97 Unrealized —

REPL Replimune Group, Inc. 6.1%

Value $48.72M Shares 2,098,300 Est. Cost $29.91 Unrealized -34.7%

— Generation Bio, Co. 5.7%

Value $45.54M Shares 8,279,484 Est. Cost $7.08 Unrealized —

— Aerovate Therapeutics, Inc. 4.4%

Value $34.97M Shares 2,039,249 Est. Cost $11.88 Unrealized —

— Ikena Oncology, Inc. 4.1%

Value $32.92M Shares 5,018,178 Est. Cost $12.54 Unrealized —

— Akero Therapeutics, Inc. 3.5%

Value $27.75M Shares 594,251 Est. Cost $21.15 Unrealized —

XLO Xilio Therapeutics, Inc. 0.9%

Value $7.229M Shares 2,759,344 Est. Cost $17.03 Unrealized -82.2%

— AvroBio, Inc. 0.5%

Value $4.315M Shares 4,541,381 Est. Cost $3.85 Unrealized —

— Magenta Therapeutics, Inc. 0.4%

Value $2.874M Shares 3,791,698 Est. Cost $4.13 Unrealized —

SPRO Spero Therapeutics, Inc. 0.2%

Value $1.469M Shares 1,013,438 Est. Cost $15.88 Unrealized -89.2%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
IRON	Disc Medicine, Inc.	3,461,784	$154M	19.1%	$49.79	-28.7%	Common Stock	254604101
KYMR	Kymera Therapeutics, Inc.	5,858,262	$135M	16.8%	$58.25	-50.8%	Common Stock	501575104
DYN	Dyne Therapeutics, Inc.	9,885,449	$111M	13.8%	$13.82	-14.6%	Common Stock	26818M108
DAWN	Day One Biopharmaceuticals, Inc.	7,608,394	$90.84M	11.3%	$19.68	-33.6%	Common Stock	23954D109
—	Vigil Neuroscience, Inc.	5,836,874	$54.87M	6.8%	$7.03	—	Common Stock	92673K108
—	Third Harmonic Bio, Inc.	10,907,859	$52.47M	6.5%	$18.97	—	Common Stock	88427A107
REPL	Replimune Group, Inc.	2,098,300	$48.72M	6.1%	$29.91	-34.7%	Common Stock	76029N106
—	Generation Bio, Co.	8,279,484	$45.54M	5.7%	$7.08	—	Common Stock	37148K100
—	Aerovate Therapeutics, Inc.	2,039,249	$34.97M	4.4%	$11.88	—	Common Stock	008064107
—	Ikena Oncology, Inc.	5,018,178	$32.92M	4.1%	$12.54	—	Common Stock	45175G108
—	Akero Therapeutics, Inc.	594,251	$27.75M	3.5%	$21.15	—	Common Stock	00973Y108
XLO	Xilio Therapeutics, Inc.	2,759,344	$7.229M	0.9%	$17.03	-82.2%	Common Stock	98422T100
—	AvroBio, Inc.	4,541,381	$4.315M	0.5%	$3.85	—	Common Stock	05455M100
—	Magenta Therapeutics, Inc.	3,791,698	$2.874M	0.4%	$4.13	—	Common Stock	55910K108
SPRO	Spero Therapeutics, Inc.	1,013,438	$1.469M	0.2%	$15.88	-89.2%	Common Stock	84833T103