OmniAb, Inc. - Common Stock, $0.0001 par value per share (OABI)

Historical Holders from Q3 2022 to Q4 2025

Type / Class
Equity / Common Stock, $0.0001 par value per share
Symbol
OABI on Nasdaq
Shares outstanding
143,673,313
Price per share
$1.86
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
62,966,400
Holdings value
$100,537,347
% of all portfolios
0%
Share change
+8,051,230
Value change
+$12,809,161
Average buys %
+0%
Average sells %
-0%
Number of holders
138
Price from insider filings
$1.96
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of OmniAb, Inc. - Common Stock, $0.0001 par value per share (OABI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Whitefort Capital Management, LP 9.9% +19% $22,757,853 +$6,373,619 14,223,658 +39% Whitefort Capital Management, LP 30 Sep 2025
Ash X LP 7% +34% $18,632,447 +$6,607,144 10,071,593 +55% Robert Goldstein 26 Aug 2025
JANUS HENDERSON GROUP PLC 0.8% -83% $1,754,603 -$13,165,225 948,434 -88% JANUS HENDERSON GROUP PLC 30 Jun 2025
As of 30 Sep 2025, OmniAb, Inc. - Common Stock, $0.0001 par value per share (OABI) has 138 institutional shareholders filing 13F forms. They hold 62,966,400 shares of 143,673,313 outstanding shares (44%) .

Top 25 institutional shareholders own 40% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
Whitefort Capital Management, LP 9.9% 14,223,658 +39% 7.5% $22,757,853
BlackRock, Inc. 4.8% 6,964,222 -0.53% 0% $11,142,756
VANGUARD GROUP INC 3.6% 5,148,061 -2.3% 0% $8,236,897
CADIAN CAPITAL MANAGEMENT, LP 2.6% 3,675,568 0.35% $5,880,909
Woodline Partners LP 2% 2,857,142 0.02% $4,571,427
DIMENSIONAL FUND ADVISORS LP 1.8% 2,548,284 -13% 0% $4,077,330
PRIVATE MANAGEMENT GROUP INC 1.8% 2,518,279 -1.6% 0.12% $4,029,246
RICE HALL JAMES & ASSOCIATES, LLC 1.7% 2,412,038 -8.2% 0.21% $3,859,261
GEODE CAPITAL MANAGEMENT, LLC 1.6% 2,326,236 -4.6% 0% $3,722,772
Stonepine Capital Management, LLC 1.5% 2,142,857 2.8% $3,428,571
STATE STREET CORP 1.5% 2,094,846 +4.2% 0% $3,351,754
ADAR1 Capital Management, LLC 0.76% 1,090,628 +234% 0.17% $1,745,005
JACOBS LEVY EQUITY MANAGEMENT, INC 0.7% 1,006,256 -9% 0.01% $1,610,010
Nuveen, LLC 0.61% 874,510 +79% 0% $1,399,216
CITADEL ADVISORS LLC 0.58% 836,799 -61% 0% $1,338,878
TOWERVIEW LLC 0.58% 831,100 0% 0.97% $1,329,760
MORGAN STANLEY 0.57% 820,222 +6.9% 0% $1,312,355
NORTHERN TRUST CORP 0.57% 818,466 -2.2% 0% $1,309,546
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.55% 785,477 -5.6% 0% $1,256,763
JPMORGAN CHASE & CO 0.53% 762,912 -3.9% 0% $1,220,659
ISTHMUS PARTNERS, LLC 0.47% 669,071 +18% 0.24% $1,070,514
GOLDMAN SACHS GROUP INC 0.41% 587,786 +92% 0% $940,458
RENAISSANCE TECHNOLOGIES LLC 0.36% 523,454 -26% 0% $837,526
Kent Lake PR LLC 0.35% 500,000 -71% 0.41% $800,000
WOODSTOCK CORP 0.24% 351,753 -43% 0.05% $562,805

Institutional Holders of OmniAb, Inc. - Common Stock, $0.0001 par value per share (OABI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 33,851 $62,814 +$21,138 $1.86 3
2025 Q3 62,966,400 $100,537,347 +$12,809,161 $1.60 138
2025 Q2 55,028,248 $95,538,152 -$30,177,544 $1.74 142
2025 Q1 63,239,232 $151,919,019 -$2,099,489 $2.40 148
2024 Q4 63,382,033 $224,377,845 -$2,208,457 $3.54 161
2024 Q3 79,658,040 $334,361,722 +$4,906,901 $4.23 161
2024 Q2 79,090,105 $293,819,152 -$22,647,446 $3.75 155
2024 Q1 83,603,597 $450,161,348 -$302,589 $5.42 153
2023 Q4 87,918 $542,454 +$187,482 $6.17 2
2023 Q3 68,671,481 $355,812,778 +$6,828,107 $5.19 147
2023 Q2 67,310,164 $337,994,597 +$8,850,763 $5.03 138
2023 Q1 66,221,011 $243,264,366 +$5,510,407 $3.68 138
2022 Q4 65,115,259 $234,807,096 +$208,103,356 $3.60 143
2022 Q3 1,101,548 $11,247,000 +$11,247,025 $10.21 1