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Arbiter Partners Capital Management’s OmniAb OABI Stock Holding History

Arbiter Partners Capital 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 		$474K Hold
192,585
– – 0.24% 32
2026
Q1 		$302K Hold
192,585
– – 0.17% 37
2025
Q4 		$356K Buy
192,585
+32,056
+20% +$55.7K 0.17% 37
2025
Q3 		$257K Buy
+160,529
New +$293K 0.15% 36

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
Private Management Group
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

Arbiter Partners Capital Management's OABI Position: Q2 2026 in Review

Arbiter Partners Capital Management held its OmniAb (OABI) position steady in Q2 2026 at 192,585 shares worth $474K. The position accounts for 0.24% of the portfolio, ranked #32.

Arbiter Partners Capital Management first reported a position in OABI in Q3 2025 and has held it in 4 quarters since. 131 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

  • Arbiter Partners Capital Management held 192,585 shares of OmniAb worth $474K as of Q2 2026.
  • Arbiter Partners Capital Management left its OmniAb share count unchanged in Q2 2026.
  • OmniAb made up 0.24% of Arbiter Partners Capital Management's portfolio in Q2 2026, its #32 holding.
  • Arbiter Partners Capital Management first reported a position in OmniAb in Q3 2025 and has held it in 4 quarters since.
  • 131 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on Arbiter Partners Capital Management's 13F filing for Q2 2026, filed 10 Aug 2026.