RhumbLine Advisers
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RhumbLine Advisers’s OmniAb OABI Stock Holding History

RhumbLine Advisers’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
Q1 		$250K Sell
159,235
-3,538
-2% -$6.38K ﹤0.01% 3011
2025
Q4 		$301K Buy
162,773
+1,837
+1% +$3.19K ﹤0.01% 2963
2025
Q3 		$257K Buy
160,936
+208
+0.1% +$380 ﹤0.01% 3091
2025
Q2 		$280K Buy
160,728
+9,163
+6% +$15.3K ﹤0.01% 3034
2025
Q1 		$364K Sell
151,565
-2,247
-1% -$7.35K ﹤0.01% 2783
2024
Q4 		$544K Sell
153,812
-19,829
-11% -$78.4K ﹤0.01% 2630
2024
Q3 		$734K Buy
173,641
+12,456
+8% +$53.9K ﹤0.01% 2442
2024
Q2 		$604K Sell
161,185
-1,392
-0.9% -$6.34K ﹤0.01% 2537
2024
Q1 		$881K Buy
162,577
+4,057
+3% +$23.4K ﹤0.01% 2323
2023
Q4 		$978K Buy
158,520
+7,956
+5% +$39.1K ﹤0.01% 2263
2023
Q3 		$781K Sell
150,564
-259
-0.2% -$1.38K ﹤0.01% 2349
2023
Q2 		$759K Buy
150,823
+22,534
+18% +$91.4K ﹤0.01% 2445
2023
Q1 		$472K Buy
128,289
+5,009
+4% +$18.9K ﹤0.01% 2458
2022
Q4 		$444K Buy
+123,280
New +$647K ﹤0.01% 2524

Other funds holding OABI

WCM
Whitefort Capital Management New York $339M AUM 52.48% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CCM
Cadian Capital Management New York $821M AUM 14.36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $1.8B AUM 36.16% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
TL
TowerView LLC New York $155M AUM 30.14% 1-Year Est. Return

RhumbLine Advisers's OABI Position: Q1 2026 in Review

RhumbLine Advisers reduced its OmniAb (OABI) stake by 2.2% in Q1 2026, selling an estimated $6.38K and leaving 159,235 shares worth $250K. The position accounts for ﹤0.01% of the portfolio, ranked #3011.

RhumbLine Advisers first reported a position in OABI in Q4 2022 and has held it in 14 quarters since. The position peaked at $978K in Q4 2023. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • RhumbLine Advisers held 159,235 shares of OmniAb worth $250K as of Q1 2026.
  • RhumbLine Advisers sold 3,538 OmniAb shares in Q1 2026, an estimated $6.38K.
  • OmniAb made up ﹤0.01% of RhumbLine Advisers's portfolio in Q1 2026, its #3011 holding.
  • RhumbLine Advisers first reported a position in OmniAb in Q4 2022 and has held it in 14 quarters since.
  • RhumbLine Advisers's OmniAb position peaked at $978K in Q4 2023.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.