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OABI — OMNIAB INC

Reported value held$79.83M
Funds holding (latest)39
SectorHealth Care
Funds holding (Q2 2026)27
Institutional value$45.11M · 18.53M sh
New / Add / Cut / Exit3 / 17 / 7 / 1
Top-5 / Top-10 concentration78.3% / 90.7%
Institutional holdings change Accumulating +9.9% (+1.66M sh)
Institutional value change Up +72.3%

As of Q2 2026, 27 SEC-registered investment managers reported holding OABI (OMNIAB INC) in their latest 13F filings, with a combined reported value of $45.11M across 18.53M shares. That is +9.9% by share count (+1.66M shares) versus the previous quarter, while reported value moved +72.3%. Ownership is concentrated: the five largest holders account for 78.3% of reported value and the top ten for 90.7%.

Compared with the prior quarter, 3 opened new positions, 17 added to existing stakes, 7 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

OABI is classified in the Health Care sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 8.90M $21.89M 0.00% Add
Janus Henderson Group history Q1 2025 8.06M $19.50M 0.01% Add
Vanguard Group history Q4 2025 5.63M $10.41M 0.00% Add
Geode Capital Management history Q2 2026 2.88M $7.10M 0.00% Reduce
Charles Schwab Investment Management history Q2 2026 966.88K $2.38M 0.00% Add
Northern Trust Corp history Q2 2026 948.29K $2.33M 0.00% Add
Norges Bank Investment Management history Q4 2022 623.62K $2.25M 0.00% New
Two Sigma Investments history Q2 2026 657.43K $1.62M 0.00% Add
Royce & Associates history Q2 2025 867.08K $1.51M 0.02% Add
Renaissance Technologies history Q2 2026 600.35K $1.48M 0.00% Add
D. E. Shaw & Co history Q2 2026 559.40K $1.38M 0.00% Add
Goldman Sachs Group history Q2 2026 384.57K $946.05K 0.00% Reduce
Morgan Stanley history Q2 2026 371.51K $913.90K 0.00% Reduce
Millennium Management history Q2 2026 474.16K $864.31K 0.00% Reduce
BNY Mellon history Q2 2026 318.41K $783.28K 0.00% Add
Marshall Wace history Q2 2025 359.67K $625.82K 0.00% New
Fidelity Management & Research (FMR) history Q2 2026 199.82K $491.55K 0.00% Add
Invesco Ltd history Q2 2026 161.38K $396.99K 0.00% Add
Arrowstreet Capital history Q2 2026 159.62K $392.67K 0.00% New
AQR Capital Management history Q2 2026 157.72K $387.98K 0.00% Add

View all 39 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — 7.22M 7.18M 7.06M 7.00M 6.96M 8.06M 8.11M 8.90M
Geode Capital Management — 1.76M 1.76M 2.04M 2.08M 2.15M 2.22M 2.34M 2.33M 2.35M 2.46M 2.44M 2.33M 2.72M 2.93M 2.88M
Charles Schwab Investment Management — 903.73K 708.65K 750.78K 741.76K 751.50K 756.89K 771.30K 787.52K 819.71K 810.98K 832.27K 785.48K 966.03K 959.57K 966.88K
Northern Trust Corp — 843.12K 871.29K 967.75K 884.30K 873.43K 870.63K 841.78K 837.29K 882.46K 827.13K 836.87K 818.47K 829.02K 880.89K 948.29K
Two Sigma Investments — 13.70K 13.70K 40.90K 41.70K 46.58K 33.45K — 15.20K 10.29K — 231.69K 291.74K 423.10K 512.74K 657.43K
Renaissance Technologies — — — 139.86K 79.96K 40.96K — — — — 26.60K 707.55K 523.45K 242.70K 269.60K 600.35K
D. E. Shaw & Co — — — 94.49K 205.79K 248.11K 120.67K 42.96K — — — — 186.28K 383.15K 380.25K 559.40K
Goldman Sachs Group — 81.78K 240.25K 174.07K 170.90K 189.44K 161.79K 176.10K 328.14K 548.53K 243.67K 306.05K 587.79K 540.28K 419.02K 384.57K
Morgan Stanley — 168.81K 219.71K 276.26K 261.20K 458.36K 361.84K 341.13K 456.19K 442.06K 498.66K 767.62K 820.22K 389.69K 407.93K 371.51K
Millennium Management — 5.12M 5.47M 4.34M 3.80M 2.28M 2.91M 1.03M 124.75K 186.75K 131.67K 650.32K 285.80K 673.39K 523.92K 474.16K
BNY Mellon — 373.70K 364.52K 408.52K 418.44K 464.95K 423.17K 396.96K 322.22K 259.17K 258.14K 270.75K 263.70K 268.64K 274.45K 318.41K
Fidelity Management & Research (FMR) — 6.11K 6.47K 6.33K 45.34K 114.93K 117.65K 125.49K 138.81K 155.61K 131.53K 137.80K 154.55K 198.98K 189.54K 199.82K
Invesco Ltd — 88.75K 26.59K 25.37K 513.52K 59.92K 93.49K 91.58K 90.66K 93.65K 93.70K 109.61K 124.05K 136.31K 135.09K 161.38K
Arrowstreet Capital — — — — — — — — — — — — — — — 159.62K
AQR Capital Management — — — — — — — — — — 10.27K 22.79K 23.09K 24.15K 115.65K 157.72K
Bank of America Corp — 328.13K 368.59K 388.51K 427.80K 425.09K 374.58K 455.07K 722.67K 616.36K 542.94K 71.03K 48.03K 83.09K 121.66K 149.49K
JPMorgan Chase & Co — 162.29K 117.43K 168.63K 151.01K 222.29K 178.28K 163.54K 146.87K 1.00M 618.44K 793.73K 762.91K 293.17K — 107.05K
Deutsche Bank AG — 257.25K 258.39K 574.64K 580.97K 579.89K 581.05K 580.13K 594.31K 626.11K 432.86K 167.55K 78.00K 77.22K 92.67K 100.84K
Wells Fargo & Co — 3.27K 19.36K 41.98K 40.30K 34.80K 172.88K 50.02K 50.58K 62.86K 70.96K 73.64K 80.60K 125.64K 50.13K 100.23K
Citadel Advisors — 1.15M 392.53K 37.82K 125.94K 38.21K 88.28K 85.71K 303.36K 457.97K 197.92K 2.13M 863.00K 311.13K 241.28K 91.89K

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