X0206 3/A 2023-05-16 2023-06-23 0 0000861838 Aceragen, Inc. ACGN 0001534428 Pillar Invest Corp C/O STUARTS CORPORATE SERVICES LTD. KENSINGTON HOUSE, 69 DR. ROY'S DRIVE GEORGETOWN, GRAND CAYMAN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 0001783583 Pillar Partners Foundation, L.P. C/O STUARTS CORPORATE SERVICES LTD. KENSINGTON HOUSE, 69 DR. ROY'S DRIVE GEORGETOWN, GRAND CAYMAN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 0001783584 Pillar Pharmaceuticals 6, L.P. C/O STUARTS CORPORATE SERVICES LTD. KENSINGTON HOUSE, 69 DR. ROY'S DRIVE GEORGETOWN, GRAND CAYMAN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 0001783582 Umari Abude C/O STUARTS CORPORATE SERVICES LTD. KENSINGTON HOUSE, 69 DR. ROY'S DRIVE GEORGETOWN, GRAND CAYMAN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 0001193366 ZEIN YOUSSEF EL C/O STUARTS CORPORATE SERVICES LTD. KENSINGTON HOUSE, 69 DR. ROY'S DRIVE GEORGETOWN, GRAND CAYMAN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 Common Stock 355247 I By Pillar Partners Foundation, L.P. Common Stock 135540 I By Pillar Pharmaceuticals 6, L.P. Common Stock 143747 I By Abude Umari Common Stock 1547 I By Youssef El Zein Warrants 0.01 2020-07-13 2023-07-13 Common Stock 162601 I By Pillar Partners Foundation, L.P. Warrants 0.01 2020-12-11 2023-12-11 Common Stock 35687 I By Pillar Partners Foundation, L.P. Warrants 0.01 2020-12-11 2023-12-11 Common Stock 45114 I By Pillar Pharmaceuticals 6, L.P. Pillar Invest Corporation ("Pillar GP") is the general partner of Pillar Pharmaceuticals 6, L.P. ("Pillar 6") and Pillar Partners Foundation, L.P. ("Pillar Partners", together with Pillar GP and Pillar 6, the "Pillar Funds"). Youssef El Zein and Abude Umari are directors of Pillar GP. Each of Pillar GP, Mr. El Zein and Mr. Umari disclaims Section 16 beneficial ownership of the securities beneficially owned by the Pillar Funds and this report shall not be deemed an admission that any of Pillar GP, Mr. El Zein or Mr. Umari is the Section 16 beneficial owner of any such securities, except to the extent of its or his pecuniary interest therein, if any, by virtue of its or his ownership interest in the Pillar Funds or Pillar GP, as applicable. The warrants are exercisable subject to a beneficial ownership blocker provision that prevents the holder from exercising the warrants if such exercise would result in the holder beneficially owning more than 19.99% of the Issuer's Common Stock outstanding following such exercise. This Amendment on Form 3/A amends and restates the Form 3 originally filed on June 23, 2023 in its entirety for the sole purpose of excluding 29,965 shares of the Issuer's Common Stock purchased on May 17, 2023 by Mr. Umari, which were previously inadvertently reported in the Form 3 filing and will instead be included in a Form 4 filing. Pillar Invest Corporation, /s/ Youssef El Zein, Authorized Person 2023-07-19 Pillar Partners Foundation, L.P., /s/ Youssef El Zein, Authorized Person 2023-07-19 Pillar Pharmaceuticals, 6, L.P., /s/ Youssef El Zein, Authorized Person 2023-07-19 /s/ Abude Umari 2023-07-19 /s/ Youssef El Zein 2023-07-19