ClosedPublished 15 Aug 2025

XOMA /
Turnstone

XOMA completes purchase of Turnstone shares

Buy side: XOMA
Buy sideXOMA
Target: Turnstone
TargetTurnstone
XOMA Royalty Corp · 15 Aug 2025Source
Buy side: XOMA
Buy sideXOMA
Target: Turnstone
TargetTurnstone
01 / BuyerXOMA
02 / TargetTurnstone
Source for the buyer and target: XOMA Royalty Corp

For the buyer and target.

“Following the consummation of the Offer, the remaining conditions to the Merger set forth in the Merger Agreement were satisfied or waived, and on August 11, 2025 (the “ Closing Date ”), Merger Sub merged with and into Turnstone (the “ Merger ”), the separate corporate existence of Merger Sub ceased and Turnstone continued as the surviving corporation in the Merger (the “ Surviving Corporation ”) and a wholly owned subsidiary of XOMA.”

Published 15 Aug 2025

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01

What happened

XOMA completed its purchase of Turnstone shares through a tender offer on Aug. 8, 2025, followed by a merger on Aug. 11, 2025. Turnstone became a wholly owned subsidiary of XOMA. [01]

The offer included $0.34 per share and one contingent value right. Terms of potential payments under the right are set out in the Contingent Value Rights Agreement. [01]

02

The source

Everything on this page comes from the source below, quoted word for word.

01
Source · XOMA Royalty Corp

XOMA completes purchase of Turnstone shares

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03

Timeline

Every date the source states, in order, each with the words it comes from. Anything marked ahead is a target the source gives, not something that has happened.

  1. Closed

    “XOMA completes purchase of Turnstone shares XOMA completed its purchase of Turnstone shares through a tender offer on Aug. 8, 2025, followed by a merger on Aug. 11, 2025”

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  2. Closed

    “XOMA completes purchase of Turnstone shares XOMA completed its purchase of Turnstone shares through a tender offer on Aug. 8, 2025, followed by a merger on Aug. 11, 2025”

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  3. Published by XOMA Royalty Corp

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