Trustees of Columbia University in the City of New York Quant / Systematic

CIK: 0001420995 · Show all filings

Period: Q4 2022 (← Previous) (Next →)

Filing Date: Feb 15, 2023

Total Value ($000): $49 (100.0% shares, 0.0% debt)

Holdings (15)

BRK/A BERKSHIRE HATHAWAY INC DEL 73.4%

Value ($000) $36 Shares 76 Est. Cost $330761.80 Unrealized +35.7%

— VIGIL NEUROSCIENCE INC 5.0%

Value ($000) $2 Shares 192,973 Est. Cost $0.01 Unrealized —

IRON DISC MEDICINE INC 4.5%

Value ($000) $2 Shares 110,488 Est. Cost $49.79 Unrealized 0.0%

TDG TRANSDIGM GROUP INC 4.0%

Value ($000) $2 Shares 3,103 Est. Cost $503.62 Unrealized 0.0%

— RAPT THERAPEUTICS INC 3.0%

Value ($000) $1 Shares 73,383 Est. Cost $20.49 Unrealized —

CFLT CONFLUENT INC 3.0%

Value ($000) $1 Shares 65,191 Est. Cost $23.17 Unrealized 0.0%

XLO XILIO THERAPEUTICS INC 1.4%

Value ($000) $1 Shares 249,635 Est. Cost $2.41 Unrealized 0.0%

— VOR BIOPHARMA INC 1.3%

Value ($000) $1 Shares 91,910 Est. Cost $43.10 Unrealized —

TNYA TENAYA THERAPEUTICS INC 1.2%

Value ($000) $1 Shares 291,828 Est. Cost $21.49 Unrealized -88.6%

— SURROZEN INC 0.9%

Value ($000) $0 Shares 718,950 Est. Cost $7.08 Unrealized —

— AEROVATE THERAPEUTICS INC 0.8%

Value ($000) $0 Shares 13,190 Est. Cost $0.03 Unrealized —

BRK/B BERKSHIRE HATHAWAY INC DEL 0.7%

Value ($000) $0 Shares 1,100 Est. Cost $220.20 Unrealized +34.9%

AMPL AMPLITUDE INC 0.5%

Value ($000) $0 Shares 18,944 Est. Cost $54.38 Unrealized -74.0%

— EVELO BIOSCIENCES INC 0.4%

Value ($000) $0 Shares 113,850 Est. Cost $12.09 Unrealized —

SRZNW SURROZEN INC 0.0%

Value ($000) $0 Shares 33,333 Est. Cost $1.14 Unrealized —

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
BRK/A	BERKSHIRE HATHAWAY INC DEL	76	$36	73.4%	$330761.80	+35.7%	CL A	084670108
—	VIGIL NEUROSCIENCE INC	192,973	$2	5.0%	$0.01	—	COM	92673K108
IRON	DISC MEDICINE INC	110,488	$2	4.5%	$49.79	0.0%	COM	254604101
TDG	TRANSDIGM GROUP INC	3,103	$2	4.0%	$503.62	0.0%	COM	893641100
—	RAPT THERAPEUTICS INC	73,383	$1	3.0%	$20.49	—	COM	75382E109
CFLT	CONFLUENT INC	65,191	$1	3.0%	$23.17	0.0%	CLASS A COM	20717M103
XLO	XILIO THERAPEUTICS INC	249,635	$1	1.4%	$2.41	0.0%	COM	98422T100
—	VOR BIOPHARMA INC	91,910	$1	1.3%	$43.10	—	COM	929033108
TNYA	TENAYA THERAPEUTICS INC	291,828	$1	1.2%	$21.49	-88.6%	COM	87990A106
—	SURROZEN INC	718,950	$0	0.9%	$7.08	—	COM	86889P109
—	AEROVATE THERAPEUTICS INC	13,190	$0	0.8%	$0.03	—	COM	008064107
BRK/B	BERKSHIRE HATHAWAY INC DEL	1,100	$0	0.7%	$220.20	+34.9%	CL B NEW	084670702
AMPL	AMPLITUDE INC	18,944	$0	0.5%	$54.38	-74.0%	COM CL A	03213A104
—	EVELO BIOSCIENCES INC	113,850	$0	0.4%	$12.09	—	COM	299734103
SRZNW	SURROZEN INC	33,333	$0	0.0%	$1.14	—	*W EXP 08/01/2	86889P117