Atlas Venture Fund Xi, L.p.
Reporting Owner SEC Filing List

CIK: 0001708269
Form Filer Subject Company Filing Agent Date Actions
144Filing for proposed sale of securities u...Atlas Venture Fund Xi, L.p. Workiva Inc. Wdesk /fa 10/21/2025
144Filing for proposed sale of securities u...Sionna Therapeutics, Inc. Workiva Inc. Wdesk /fa 10/21/2025
144Filing for proposed sale of securities u...Atlas Venture Fund Xi, L.p. Workiva Inc. Wdesk /fa 10/20/2025
144Filing for proposed sale of securities u...Sionna Therapeutics, Inc. Workiva Inc. Wdesk /fa 10/20/2025
144Filing for proposed sale of securities u...Atlas Venture Fund Xi, L.p. Workiva Inc. Wdesk /fa 10/17/2025
144Filing for proposed sale of securities u...Sionna Therapeutics, Inc. Workiva Inc. Wdesk /fa 10/17/2025
144Filing for proposed sale of securities u...Atlas Venture Fund Xi, L.p. Workiva Inc. Wdesk /fa 10/16/2025
144Filing for proposed sale of securities u...Sionna Therapeutics, Inc. Workiva Inc. Wdesk /fa 10/16/2025
144Filing for proposed sale of securities u...Atlas Venture Fund Xi, L.p. Workiva Inc. Wdesk /fa 10/14/2025
144Filing for proposed sale of securities u...Sionna Therapeutics, Inc. Workiva Inc. Wdesk /fa 10/14/2025
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Atlas Venture Fund Xi, L.p. 's Ownership Transactions

Issuer Filing
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Transaction
Date
Transaction
Type
Shares Price Total Amt Shares Owned