RENAISSANCE TECHNOLOGIES LLC

Position in RARE — Ultragenyx Pharmaceutical Inc.

CIK 1037389 NEW YORK, NY

Position in RARE

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$11,767,615

+$3,347,315 QoQ

Shares Held

561,700

+53.4% QoQ

Ownership

0.570%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2020

13 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

RENAISSANCE TECHNOLOGIES LLC holds $3,464,545,054 across 328 Biotechnology names. RARE ranks #44 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EXEL	Exelixis, Inc.	13,726,993	$588,750,729
2	INCY	Incyte Corp	3,651,532	$343,682,191
3	CORT	Corcept Therapeutics Inc	5,682,783	$229,072,982
4	VRTX	Vertex Pharmaceuticals Inc / Ma	421,688	$188,300,559
5	JAZZ	Jazz Pharmaceuticals plc	819,374	$154,902,654
6	GMAB	Genmab A/S	4,414,550	$118,442,376
7	INVA	Innoviva, Inc.	4,055,632	$94,496,225
8	ARWR	Arrowhead Pharmaceuticals, Inc.	1,036,495	$64,988,236

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$11,767,615	561,700	+53.4%	Shares	Sole	2026-05-14
2025-12-31	$8,420,300	366,100	+1571.7%	Shares	Sole	2026-02-12
2025-09-30	$658,752	21,900	-89.5%	Shares	Sole	2025-11-13
2025-06-30	$7,573,788	208,300	-30.5%	Shares	Sole	2025-08-13
2025-03-31	$10,848,516	299,600	+17.6%	Shares	Sole	2025-05-14
2024-12-31	$10,715,229	254,700	+39.9%	Shares	Sole	2025-02-13
2024-09-30	$10,115,655	182,100	+829.1%	Shares	Sole	2024-11-13
2023-06-30	$904,148	19,600	-58.6%	Shares	Sole	2023-08-11
2021-12-31	$3,985,866	47,400	-33.8%	Shares	Sole	2022-02-11
2021-09-30	$6,457,604	71,600	-84.5%	Shares	Sole	2021-11-12
2021-06-30	$44,089,840	462,400	+219.3%	Shares	Sole	2021-08-13
2021-03-31	$16,486,928	144,800	+52.7%	Shares	Sole	2021-05-13
2020-12-31	$13,123,164	94,800	—	Shares	Sole	2021-02-10
No filing history on record for this holder in this stock.