Acadian Asset Management
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Acadian Asset Management’s OmniAb OABI Stock Holding History

Acadian Asset Management’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
Q2 		$323K Buy
+132,385
New +$263K ﹤0.01% 1547
2026
Q1 		– Sell
-47,625
Closed -$88K – 2188
2025
Q4 		$88K Buy
+47,625
New +$82.8K ﹤0.01% 1705

Other funds holding OABI

WCM
Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $85.4B AUM 91.09% 1-Year Est. Return
CCM
Cadian Capital Management New York $1.32B AUM 4.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $2.05B AUM 43.16% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.8B AUM 23.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Acadian Asset Management's OABI Position: Q2 2026 in Review

Acadian Asset Management opened a new position in OmniAb (OABI) in Q2 2026: 132,385 shares worth $323K. The stake represents ﹤0.01% of the portfolio and ranks #1547 among its holdings. This is a return to the name: Acadian Asset Management previously reported a position in OABI as recently as Q4 2025.

Acadian Asset Management first reported a position in OABI in Q4 2025 and has held it in 2 quarters since. 131 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

  • Acadian Asset Management held 132,385 shares of OmniAb worth $323K as of Q2 2026.
  • OmniAb was a new Acadian Asset Management position in Q2 2026.
  • OmniAb made up ﹤0.01% of Acadian Asset Management's portfolio in Q2 2026, its #1547 holding.
  • Acadian Asset Management first reported a position in OmniAb in Q4 2025 and has held it in 2 quarters since.
  • 131 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.