ROCKET PHARMACEUTICALS, INC.

Stock-based compensation expense recognized by award type was as follows:

Stock-based compensation expense by classification included within the Consolidated Statements of Operations and Comprehensive Loss was as follows:

As of September 30, 2025, the Company had an aggregate of$58.7 million of unrecognized stock-based compensation expense related to stock options, RSU and PSU grants. The stock options and RSU grants had an aggregate of$58.2 million of unrecognized stock-based compensation expense, which is expected to be recognized over a weighted average period of 1.87 years.

Warrants

A summary of the warrants outstanding as of September 30, 2025, is as follows:

Warrants Issued in Public Offerings

The Company issued warrants to a related party during the years ended December 31, 2024, and 2023. For the years ended December 31, 2024, and 2023, the Company sold pre-funded warrants to purchase 400,000 and 3,126,955 shares of common stock, respe ctively with an exercise price of $0.01 per share (see Note 8 “Stockholders Equity”). The pre-funded warrants were acquired by funds affiliated with RTW (see Note 16 “Related Party Transactions”).

Assumed Renovacor Warrants

In conjunction with the acquisition of Renovacor, the Company assumed pre-acquisition public warrants that were converted into warrants to purchase 760,086 shares of Rocket Pharmaceuticals, Inc. common stock at an exercise price of $65.23 per share.

In conjunction with the acquisition of Renovacor, the Company assumed pre-acquisition private warrants that were converted into warrants to purchase 617,050 shares of Rocket Pharmaceuticals, Inc. common stock at an exercise price of $65.23 per share. The Company determined that the private warrants did not meet all of the criteria for equity classification. Accordingly, the Company classified these as a derivative liability in other liabilities in the Consolidated Balance Sheets. The Company measured the fair value of these warrants at the end of each reporting period and recognized changes in the fair value from the prior period in the Company’s operating results for the current period. These warrants expired on April 23, 2025.

Net Loss Per Share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows:

For the three and nine months ended September 30, 2025, the Company included the 3,126,955 potential shares from the pre-funded warrants acquired by RTW in 2023 and the 400,000 potential shares from the pre-funded warrants acquired by RTW in 2024 in the basic weighted-average common shares outstanding asthe warrants only require the holder to pay $0.01 per share upon exercise.

For the three and nine months ended September 30, 2024, the Company included the 3,126,955 potential shares from the pre-funded warrants acquired by RTW in 2023 in the basic weighted-average common shares outstanding as the warrants only require the holder to pay $0.01 per share upon exercise.

The Company excluded the following potential shares of common stock, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect:

Leases