Atlas Venture Fund XI, L.P.
SEC insider (Form 3/4/5 filer). CIK 0001708269. 10% Owner at Sionna Therapeutics, Inc. (SION) and 1 other issuer. 4 reported Form 4/5 transactions since Sep 2024; latest on Feb 10, 2025. Located in CAMBRIDGE, MA.
Companies Atlas Venture Fund XI, L.P. has filed insider reports for
- Sionna Therapeutics, Inc. (SION): 10% Owner
- Third Harmonic Bio, Inc. (THRD): 10% Owner
Atlas Venture Fund XI, L.P.
CIK: 0001708269
Transaction Breakdown
Open Market Buys (P)1 (25.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)3 (75.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Feb 10, 2025SION
Sionna Therapeutics, Inc.
ConversionDirect2.9M shares- - Feb 10, 2025SION
Sionna Therapeutics, Inc.
ConversionIndirect747.7K shares- - Feb 10, 2025SION
Sionna Therapeutics, Inc.
PurchaseIndirect60K shares at avg. $18.00$1.1M - Nov 1, 2024THRD
Third Harmonic Bio, Inc.
OtherDirect515.7K shares-
1-4 of 4 transactions