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OmniAb OABI · USD

Health Care · US listing · 🇺🇸 United States

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5.30

+5.37%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
Whitefort Capital Management, LP14.2m12.52%—31 Dec 2025
Ash X LP7.6m6.65%−714.1k31 Dec 2025
BlackRock Institutional Trust Company, N.A.7.4m6.50%+1.1m31 Dec 2025
The Vanguard Group, Inc.5.6m4.95%+477.1k31 Dec 2025
RLG Capco II LLC4.7m4.17%+2.9m31 Dec 2025
Cadian Capital Management LP4.4m3.90%+759.4k31 Dec 2025
Foehr (Matthew W)4.4m3.87%+43.2k18 Feb 2026
Higgins (John L)2.9m2.59%+13.2k30 Jan 2026
Geode Capital Management, L.L.C.2.7m2.40%+396.5k31 Dec 2025
Private Management Group, Inc.2.4m2.13%−97.8k31 Dec 2025
Rice Hall James & Associates, LLC2.4m2.11%−11k31 Dec 2025
Dimensional Fund Advisors, L.P.2.2m1.89%−395.7k31 Dec 2025
State Street Investment Management (US)2m1.80%−45.9k31 Dec 2025
Greenblatt (Joel M)1.4m1.26%—31 Dec 2025
TowerView, L.L.C.1m0.88%+168.9k31 Dec 2025

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

8.5m

+4.2% on the period before. 6.7 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

58.0%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 30 Sept 2026385 shares
  • 29 Sept 2026385 shares
  • 28 Sept 2026385 shares
  • 25 Sept 2026385 shares
  • 24 Sept 2026385 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.