TLS Advisors’s OmniAb OABI Stock Holding History

TLS Advisors’s Portfolio OABI Stock Details OABI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$393K	Buy	250,185 +180,185	+257%	+$325K	0.93%	13
2025 Q4	$137K	Sell	70,000 -180,185	-72%	-$313K	0.36%	16
2025 Q3	$388K	Hold	250,185	–	–	1.13%	11
2025 Q2	$435K	Hold	250,185	–	–	1.36%	9
2025 Q1	$600K	Hold	250,185	–	–	1.35%	11
2024 Q4	$886K	Hold	250,185	–	–	2.03%	10
2024 Q3	$1.06M	Hold	250,185	–	–	2.24%	10
2024 Q2	$938K	Hold	250,185	–	–	2.35%	10
2024 Q1	$1.36M	Hold	250,185	–	–	3.16%	11
2023 Q4	$1.54M	Hold	250,185	–	–	5.12%	8
2023 Q3	$1.3M	Hold	250,185	–	–	5.25%	7
2023 Q2	$1.26M	Sell	250,185 -106,407	-30%	-$431K	5.4%	7
2023 Q1	$1.31M	Sell	356,592 -30,000	-8%	-$113K	6.75%	6
2022 Q4	$1.39M	Buy	+386,592	New	+$2.03M	6.86%	5

Other funds holding OABI

WCM

Whitefort Capital Management New York $339M AUM 52.48% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

CCM

Cadian Capital Management New York $821M AUM 14.36% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

RHJA

Rice Hall James & Associates San Diego, California $1.8B AUM 36.16% 1-Year Est. Return

PMG

Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

TowerView LLC New York $155M AUM 30.14% 1-Year Est. Return

TLS Advisors's OABI Position: Q1 2026 in Review

TLS Advisors increased its OmniAb (OABI) stake by 257% in Q1 2026, buying an estimated $325K and bringing the position to 250,185 shares worth $393K. The position accounts for 0.93% of the portfolio, ranked #13.

TLS Advisors first reported a position in OABI in Q4 2022 and has held it in 14 quarters since. The position peaked at $1.54M in Q4 2023. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

TLS Advisors held 250,185 shares of OmniAb worth $393K as of Q1 2026.
TLS Advisors bought 180,185 OmniAb shares in Q1 2026, an estimated $325K.
OmniAb made up 0.93% of TLS Advisors's portfolio in Q1 2026, its #13 holding.
TLS Advisors first reported a position in OmniAb in Q4 2022 and has held it in 14 quarters since.
TLS Advisors's OmniAb position peaked at $1.54M in Q4 2023.
128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on TLS Advisors's 13F filing for Q1 2026, filed 13 May 2026.