Company: CCIXW
Filing Date: 2025-12-05
Form Type: S-4/A
Source: 0001193125-25-309933
Chunk: 1118

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-12-05
Form: S-4/A
Chunk 1118
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7701(b)(1)(A))) may be excluded from participation in this Plan or an Offering if the participation of such Eligible Employees is prohibited under the laws of the applicable jurisdiction or if complying with the laws of the applicable jurisdiction would cause this Plan or an Offering to violate Code Section 423 . In the case of the Non‑423 Component, an Eligible Employee may be excluded from participation in this Plan or an Offering if the Administrator has determined that participation of such Eligible Employee is not advisable or practicable.

Limitations . Any provisions of this Plan to the contrary notwithstanding, no Eligible Employee will be granted an option under this Plan (a) to the extent that, immediately after the grant, such Eligible Employee (or any other person whose stock would be attributed to such Eligible Employee pursuant to Code Section 424(d) ) would own capital stock of the Company or any Parent or Subsidiary of the Company and/or hold outstanding options to purchase such stock possessing five percent (5%) or more of the total combined voting power or value of all classes of the capital stock of the Company or of any Parent or Subsidiary of the Company, or (b) to the extent that his or her rights to purchase stock under all employee stock purchase plans (as defined in Code Section 423 ) of the

<div align='center'>E-6</div>

Company or any Parent or Subsidiary of the Company accrues at a rate, which exceeds twenty‑five thousand dollars ($25,000) worth of stock (determined at the Fair Market Value of the stock at the time such option is granted) for each calendar year in which such option is outstanding at any time, as determined in accordance with Code Section 423 and the regulations thereunder.

Offering Periods . This Plan will be implemented by Offering Periods as established by the Administrator from time to time. Offering Periods will expire on the earliest to occur of (a) the completion of the purchase of shares on the last Exercise Date occurring within twenty‑seven (27) months of the applicable Enrollment Date on which the option to purchase shares was granted under this Plan, or (b) such shorter period established prior to the Enrollment Date of the Offering Period by the Administrator, from time to time, in its discretion, on a uniform and nondiscriminatory basis, for all options to be granted on such Enrollment Date. The Administrator will have the power to change the duration of Offering Periods (including the commencement dates thereof) with respect