Other Information.
+Added: 2024 ATM Program
+Added: As previously disclosed, on March 26, 2024, we entered into a Sales Agreement, or Sales Agreement, with TD Cowen, pursuant to which we from time to time could offer and sell shares of its common stock through or to TD Cowen having an aggregate offering price of up to $100.0 million.
+Added: On May 6, 2026, we and TD Cowen mutually agreed to terminate the Sales Agreement with immediate effect in accordance with the terms of the Sales Agreement.
+Added: Accordingly, no further offers or sales will be conducted under the Sales Agreement.
+Added: Prior to such termination, we sold shares of our common stock with an aggregate gross sales price of approximately $66.7 million under the Sales Agreement.
+Added: The foregoing description of the Sales Agreement does not purport to be complete and is qualified in its entirety by reference to the copy of the Sales Agreement filed as Exhibit 1.2 to the Company’s Registration Statement on Form S-3 filed on March 26, 2024.
Insider Trading
−Removed: During the three months ended September 30, 2025, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Item 408 of Regulation S-K.
+Added: During the three months ended March 31, 2026, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Item 408 of Regulation S-K.
EXHIBIT INDEX
14 unchanged sentences
Annexon, Inc.
−Removed: November 10, 2025
/s/ Douglas Love, Esq.
2 unchanged sentences
(Principal Executive Officer)
−Removed: November 10, 2025
/s/ Jennifer Lew
2 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.