As filed with the Securities and Exchange Commission on May 27, 2026.
Registration No. 333-296032
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
d
Amendment No. 1
to
FORM S-1
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
Parabilis Medicines, Inc.
(Exact name of registrant as specified in its charter)
Delaware |
2834 |
47-4505725 |
(State or other jurisdiction of incorporation or organization) |
(Primary Standard Industrial Classification Code Number) |
(I.R.S. Employer Identification Number) |
Parabilis Medicines, Inc.
30 Acorn Park Drive
Cambridge, MA 02140
(617) 945-9510
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)
Mathai Mammen, M.D., Ph.D.
Chief Executive Officer
30 Acorn Park Drive
Cambridge, MA 02140
(617) 945-9510
(Name, address, including zip code, and telephone number, including area code, of agent for service)
Copies to:
Kingsley L. Taft Gregg L. Katz Alicia M. Tschirhart Goodwin Procter LLP 100 Northern Avenue Boston, MA 02210 (617) 570-1000 |
Teresa Jurgensen General Counsel Parabilis Medicines, Inc. 30 Acorn Park Drive Cambridge, MA 02140 (617) 945-9510 |
Brian K. Rosenzweig Alicia Zhang Charles A. Dobb Covington & Burling LLP 30 Hudson Yards New York, NY 10001 (212) 841-1000 |
Approximate date of commencement of proposed sale to the public: As soon as practicable after this registration statement becomes effective.
If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box: ☐
If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer |
☐ |
Accelerated filer |
☐ |
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Non-accelerated filer |
☒ |
Smaller reporting company |
☒ |
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Emerging growth company |
☒ |
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐
The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.