TWO SIGMA INVESTMENTS, LP

Position in OABI — OmniAb, Inc.

CIK 1179392 NEW YORK, NY

Position in OABI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,617,282

+$812,279 QoQ

Shares Held

657,432

+28.2% QoQ

Ownership

0.452%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#16

of 141 holders

Holding Since

Dec 2022

13 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Healthcare · as of Jun 30, 2026

TWO SIGMA INVESTMENTS, LP holds $7,273,664,878 across 342 Biotechnology names. OABI ranks #177 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALNY	Alnylam Pharmaceuticals, Inc.	1,875,937	$564,713,315
2	MRNA	Moderna, Inc.	7,193,530	$503,762,905
3	IONS	Ionis Pharmaceuticals Inc	6,252,342	$495,748,197
4	REGN	Regeneron Pharmaceuticals, Inc.	656,124	$409,119,558
5	BBIO	BridgeBio Pharma, Inc.	4,722,185	$351,708,338
6	EXEL	Exelixis, Inc.	4,209,861	$229,058,537
7	INCY	Incyte Corp	2,003,559	$227,123,448
8	ARGX	Argenx SE	185,638	$172,229,367

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,617,282	657,432	+28.2%	Shares	Sole	2026-08-14
2026-03-31	$805,003	512,741	+21.2%	Shares	Sole	2026-05-15
2025-12-31	$782,742	423,104	+45.0%	Shares	Sole	2026-02-17
2025-09-30	$466,776	291,735	+25.9%	Shares	Sole	2025-11-14
2025-06-30	$403,137	231,688	+2151.1%	Shares	Sole	2025-08-14
2024-12-31	$36,433	10,292	-32.3%	Shares	Sole	2025-02-14
2024-09-30	$64,300	15,201	-54.6%	Shares	Sole	2024-11-14
2024-03-31	$181,282	33,447	-28.2%	Shares	Sole	2024-05-15
2023-12-31	$287,423	46,584	+11.7%	Shares	Sole	2024-02-14
2023-09-30	$216,423	41,700	+2.0%	Shares	Sole	2023-11-14
2023-06-30	$205,727	40,900	+198.5%	Shares	Sole	2023-08-14
2023-03-31	$50,416	13,700	0.0%	Shares	Sole	2023-05-15
2022-12-31	$49,320	13,700	—	Shares	Sole	2023-02-14
No filing history on record for this holder in this stock.