OmniAb, Inc. (OABI) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

114,726,000Shares Outstanding
55,931,507Shares held by institutions
$145,981,233Value of institutional holdings
48.75%Institutional ownership %
7.50%Shares Changed QoQ
128No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

OmniAb, Inc. (NASDAQ:OABI) has 125 institutional investors with active 13F positions as of December 2025.

128 Institutional Holders

55,931,507 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
Whitefort Capital Management, LP 31 Mar, 2026 14,223,658 0 0.00% $22,331,143.00
BlackRock, Inc. 31 Mar, 2026 8,106,881 41,900 0.52% $12,727,803.00
CADIAN CAPITAL MANAGEMENT, LP 31 Mar, 2026 4,157,129 -277,825 -6.26% $6,526,693.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 3,993,652 3,993,652 0.00% $6,270,034.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 2,925,579 202,887 7.45% $4,594,230.00
RICE HALL JAMES & ASSOCIATES, LLC 31 Mar, 2026 2,547,255 146,167 6.09% $3,999,190.00
PRIVATE MANAGEMENT GROUP INC 31 Mar, 2026 2,429,166 8,688 0.36% $3,813,791.00
State Street Corp 31 Mar, 2026 2,067,143 18,147 0.89% $3,245,415.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 1,745,248 -407,345 -18.92% $2,739,965.00
TOWERVIEW LLC 31 Mar, 2026 1,000,000 0 0.00% $1,570,000.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 31 Mar, 2026 959,573 -6,453 -0.67% $1,506,530.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 903,799 903,799 0.00% $1,418,964.00
Northern Trust Corp 31 Mar, 2026 880,895 51,874 6.26% $1,383,005.00
ISTHMUS PARTNERS, LLC 31 Mar, 2026 756,674 35,365 4.90% $1,187,978.00
VANGUARD FIDUCIARY TRUST CO 31 Mar, 2026 725,608 725,608 0.00% $1,139,205.00
ADAR1 Capital Management, LLC 31 Mar, 2026 705,190 -699,190 -49.79% $1,107,148.00
Nomura Holdings Inc 31 Mar, 2026 705,048 550,097 355.01% $1,106,925.00
Nuveen, LLC 31 Mar, 2026 623,876 -250,636 -28.66% $979,485.00
MILLENNIUM MANAGEMENT LLC 31 Mar, 2026 523,918 -149,477 -22.20% $629,731.00
TWO SIGMA INVESTMENTS, LP 31 Mar, 2026 512,741 89,637 21.19% $805,003.00