Gogo Inc.

On December 15, 2025, director (and then-Executive Chair) Oakleigh Thorne adopted a Rule 10b5-1 trading arrangement, which is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The arrangement provides for the potential sale of up to 325,409 shares of the Company’s common stock and expires on February 15, 2027, unless earlier terminated in accordance with its terms. No sales may occur under the arrangement until August 6 th, 2026, presumably after the Company’s Q2 2026 earnings release. The plan is intended to facilitate certain estate and other financial planning initiatives, and the minimum sale price under the plan is substantially higher than the closing price of the Company’s common stock on the date of this Annual Report on Form 10-K.

Except as described above, during the fiscal quarter ended December 31, 2025, none of our directors or officers adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” as such terms are defined in Item 408 of Regulation S-K.