
	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Merger, integration, and restructuring related costs
Merger and integration related costs(1)	$	35.0	$	—	$	45.0	$	—
Merger-related personnel and severance costs(2)	44.8		—		44.8		—
Other restructuring costs(3)	—		—		—		(0.9)
Total merger, integration, and restructuring related costs	$	79.8	$	—	$	89.8	$	(0.9)

(1) Merger and integration related costs consist of legal and regulatory fees, transaction costs, and other professional services incurred in connection with the Merger and subsequent integration-related activities.

(2) Merger-related personnel and severance costs consist of personnel-related costs incurred directly as a result of the Merger, including subsequent workforce integration and synergy initiatives. Included in this amount are costs incurred pursuant to change in control and severance agreements with certain departing personnel which were accounted for as post-combination compensation. Those costs consist of $8.1 million of one-time severance payments and other benefits, which were substantially settled as of June 30, 2026, as well as $15.8 million of stock-based compensation expense recognized due to accelerated vesting of replacement equity awards that were attributable to post-combination service.

In connection with the Merger, the Company also entered into agreements to pay a total of $26.3 million in cash-based retention payments to certain employees designed to support integration efforts related to the Merger. Retention compensation that is contingent on future service is recognized into expense on a straight-line basis over the requisite service period, with various retention periods vesting during the third and fourth quarters of 2026.

The Company recognized $19.7 million of expense and made cash payments of $10.4 million associated with retention agreements during the three months ended June 30, 2026. Accrued, unpaid retention liabilities as of June 30, 2026, were $9.3 million, and are included within the accrued compensation and benefits caption of the accompanying condensed consolidated balance sheets.

(3) Other restructuring costs consist of costs incurred for restructuring activities that were unrelated to the Merger. During the six months ended June 30, 2025, we recognized restructuring related charges of $0.7 million, made cash payments of $5.2 million, and recognized a reversal of stock-based compensation of $1.6 million due to the forfeiture of RSUs and stock options, related to our commitment to reduce overall expenses, focus our efforts, and prioritize future investments in key initiatives that we expect will drive long-term, sustainable growth, announced in October 2024.