BAKER BROS. ADVISORS LP

CIK

1263508

City

NEW YORK

State / Country

NY

Stock

SMMT — Summit Therapeutics Inc.

Top Portfolio Positions

82 positions · $17,486,824,522 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio	Open
INCY	Incyte Corp Healthcare	30,744,412	$2,893,664,057	16.55%
ONC	BeOne Medicines Ltd. Healthcare	8,799,053	$2,613,054,769	14.94%
INSM	INSMED Inc Healthcare	7,421,111	$1,213,500,070	6.94%
MDGL	Madrigal Pharmaceuticals, Inc. Healthcare	2,141,701	$1,121,116,222	6.41%
ACAD	Acadia Pharmaceuticals Inc Healthcare	42,896,690	$954,880,319	5.46%
RVMD	Revolution Medicines, Inc. Healthcare	9,555,357	$929,258,468	5.31%
CELC	Celcuity Inc. Healthcare	7,915,792	$903,508,498	5.17%
KOD	Kodiak Sciences Inc. Healthcare	19,919,186	$759,319,370	4.34%
KYMR	Kymera Therapeutics, Inc. Healthcare	8,657,242	$721,061,686	4.12%
SMMT	Summit Therapeutics Inc. Healthcare	36,391,063	$689,974,554	3.95%

Portfolio Trend

25 quarters · across all stocks

Holdings in SMMT

Compact Export CSV

Shares Held

Position Value (USD)

12 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$689,974,554	36,391,063	0.0%	Shares	Sole	2026-05-15
2025-12-31	$636,479,691	36,391,063	+7.9%	Shares	Sole	2026-02-17
2025-09-30	$696,716,642	33,722,974	0.0%	Shares	Sole	2025-11-14
2025-06-30	$717,624,886	33,722,974	+38.1%	Shares	Sole	2025-08-14
2025-03-31	$471,155,645	24,424,865	0.0%	Shares	Sole	2025-05-15
2024-12-31	$435,861,715	24,424,865	0.0%	Shares	Sole	2025-02-14
2024-09-30	$534,904,543	24,424,865	+5.2%	Shares	Sole	2024-11-14
2024-06-30	$181,133,331	23,222,222	+639.4%	Shares	Sole	2024-08-14
2023-09-30	$5,872,684	3,140,473	-50.2%	Shares	Sole	2023-11-14
2023-06-30	$15,824,809	6,304,705	0.0%	Shares	Sole	2023-08-14
2023-03-31	$11,033,233	6,304,705	+215.2%	Shares	Sole	2023-05-15
2022-12-31	$8,500,000	2,000,000	—	Shares	Sole	2023-02-14
No 13F history on record for this holder in this stock.