OmniAb, Inc.

Historical 13F Holders

Symbol
OABI
CUSIP
68218J103
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 68218J103 since 12/18/2024, newest first.

Filer % of Class Filed
Whitefort Capital Management, LP 13G/A Amendment 3
7.1% 8/14/2026
Event 6/30/2026
Ash X LP 13G/A Amendment 2
8.5% 2/10/2026
Event 12/31/2025
Whitefort Capital Management, LP 13G/A Amendment 2
9.9% 11/14/2025
Event 9/30/2025
Ash X LP 13G/A Amendment 1
7.0% 8/27/2025
Event 8/26/2025
Janus Henderson Group PLC 13G/A Amendment 4 0.8% 8/14/2025
Event 6/30/2025
Whitefort Capital Management, LP 13G/A Amendment 1
8.4% 8/14/2025
Event 6/30/2025
Ash X LP 13G
5.3% 7/1/2025
Event 6/12/2025
Whitefort Capital Management, LP 13G
6.0% 6/6/2025
Event 5/30/2025
Janus Henderson Group PLC 13G/A Amendment 3 6.6% 5/14/2025
Event 3/31/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 2 796 $3.95 k
2026 Q2 137 59.2 M $147 M
2026 Q1 130 56.0 M $87.7 M
2025 Q4 132 57.3 M $106 M
2025 Q3 143 63.7 M $102 M
2025 Q2 146 55.4 M $96.1 M
2025 Q1 159 63.5 M $152 M
2024 Q4 168 63.6 M $225 M
2024 Q3 170 80.0 M $335 M
2024 Q2 169 79.6 M $296 M
2024 Q1 163 84.6 M $455 M
2023 Q4 165 84.7 M $519 M
2023 Q3 155 68.7 M $356 M
2023 Q2 151 67.5 M $339 M
2023 Q1 151 66.8 M $261 M
2022 Q4 155 67.2 M $242 M
2022 Q3 1 1.10 M $11.2 M