Atlas Venture Opportunity Fund I, L.P.
10% Owner · 1 filing · Latest: Feb 9, 2026
Generation Bio Co.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
DYN | Atlas Venture Opportunity Fund I, LP | — | May 6, 2026 | Proposed Sale | $17.47 | 17,244 | $301.3K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | May 5, 2026 | Proposed Sale | $17.71 | 2,403 | $42.6K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | May 4, 2026 | Proposed Sale | $17.39 | 2,466 | $42.9K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 28, 2026 | Proposed Sale | $18.04 | 47,103 | $849.7K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 27, 2026 | Proposed Sale | $18.26 | 35,947 | $656.4K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 24, 2026 | Proposed Sale | $18.90 | 28,583 | $540.2K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 23, 2026 | Proposed Sale | $19.67 | 15,148 | $298.0K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 22, 2026 | Proposed Sale | $19.21 | 59,663 | $1.1M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Apr 22, 2026 | Proposed Sale | $88.07 | 12 | $1.1K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 21, 2026 | Proposed Sale | $20.02 | 56,820 | $1.1M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Apr 20, 2026 | Proposed Sale | $20.41 | 56,355 | $1.2M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Apr 15, 2026 | Proposed Sale | $89.87 | 385 | $34.6K | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Mar 2, 2026 | Proposed Sale | $91.35 | 25,000 | $2.3M | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Dec 17, 2025 | Proposed Sale | $91.47 | 393 | $35.9K | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Dec 16, 2025 | Proposed Sale | $92.00 | 10,898 | $1.0M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Dec 16, 2025 | Proposed Sale | $91.47 | 25,000 | $2.3M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Dec 15, 2025 | Proposed Sale | $92.00 | 17,433 | $1.6M | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Dec 15, 2025 | Proposed Sale | $91.85 | 15,401 | $1.4M | — | |
KYMR | Atlas Venture Opportunity Fund I, L.P. | — | Dec 12, 2025 | Proposed Sale | $89.68 | 108 | $9.7K | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Dec 12, 2025 | Proposed Sale | $93.60 | 23,701 | $2.2M | — |