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Isthmus Partners’s OmniAb OABI Stock Holding History

Isthmus Partners’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 		$1.98M Buy
803,428
+46,754
+6% +$92.8K 0.19% 113
2026
Q1 		$1.19M Buy
756,674
+35,365
+5% +$63.8K 0.12% 121
2025
Q4 		$1.33M Buy
721,309
+52,238
+8% +$90.8K 0.15% 115
2025
Q3 		$1.07M Buy
669,071
+101,028
+18% +$185K 0.24% 62
2025
Q2 		$988K Buy
568,043
+99,336
+21% +$166K 0.12% 114
2025
Q1 		$1.12M Buy
468,707
+15,572
+3% +$51K 0.14% 113
2024
Q4 		$1.6M Buy
453,135
+7,001
+2% +$27.7K 0.2% 107
2024
Q3 		$1.89M Sell
446,134
-82,251
-16% -$356K 0.22% 96
2024
Q2 		$1.98M Buy
528,385
+143,387
+37% +$653K 0.23% 102
2024
Q1 		$2.09M Buy
384,998
+74,224
+24% +$428K 0.24% 103
2023
Q4 		$1.92M Buy
310,774
+48,138
+18% +$237K 0.25% 89
2023
Q3 		$1.36M Buy
262,636
+3,615
+1% +$19.3K 0.2% 104
2023
Q2 		$1.3M Sell
259,021
-1,223
-0.5% -$4.96K 0.18% 105
2023
Q1 		$958K Buy
260,244
+68,171
+35% +$257K 0.14% 113
2022
Q4 		$691K Buy
+192,073
New +$1.01M 0.1% 120

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 $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Isthmus Partners's OABI Position: Q2 2026 in Review

Isthmus Partners increased its OmniAb (OABI) stake by 6.2% in Q2 2026, buying an estimated $92.8K and bringing the position to 803,428 shares worth $1.98M. The position accounts for 0.19% of the portfolio, ranked #113.

Isthmus Partners first reported a position in OABI in Q4 2022 and has held it in 15 quarters since. The position peaked at $2.09M in Q1 2024. 132 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

  • Isthmus Partners held 803,428 shares of OmniAb worth $1.98M as of Q2 2026.
  • Isthmus Partners bought 46,754 OmniAb shares in Q2 2026, an estimated $92.8K.
  • OmniAb made up 0.19% of Isthmus Partners's portfolio in Q2 2026, its #113 holding.
  • Isthmus Partners first reported a position in OmniAb in Q4 2022 and has held it in 15 quarters since.
  • Isthmus Partners's OmniAb position peaked at $2.09M in Q1 2024.
  • 132 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on Isthmus Partners's 13F filing for Q2 2026, filed 20 Jul 2026.