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 |
|---|---|---|---|---|---|---|---|---|---|
IRON | Atlas Venture Opportunity Fund I, LP | — | Sep 4, 2026 | Proposed Sale | $79.37 | 912 | $72.4K | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Sep 3, 2026 | Proposed Sale | $80.05 | 2,810 | $224.9K | — | |
IRON | Atlas Venture Opportunity Fund I, LP | — | Sep 2, 2026 | Proposed Sale | $78.67 | 26,552 | $2.1M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Aug 14, 2026 | Proposed Sale | $25.96 | 322,465 | $8.4M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Aug 13, 2026 | Proposed Sale | $26.17 | 63,643 | $1.7M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jul 7, 2026 | Proposed Sale | $22.84 | 60,858 | $1.4M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jul 6, 2026 | Proposed Sale | $23.07 | 100,019 | $2.3M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 29, 2026 | Proposed Sale | $108.12 | 10,473 | $1.1M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jun 29, 2026 | Proposed Sale | $20.94 | 40,702 | $852.3K | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jun 26, 2026 | Proposed Sale | $20.61 | 64,411 | $1.3M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 26, 2026 | Proposed Sale | $116.46 | 57,451 | $6.7M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jun 25, 2026 | Proposed Sale | $20.33 | 5,019 | $102.0K | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 25, 2026 | Proposed Sale | $99.87 | 67,329 | $6.7M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jun 24, 2026 | Proposed Sale | $20.26 | 19,973 | $404.7K | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 24, 2026 | Proposed Sale | $98.25 | 16,542 | $1.6M | — | |
DYN | Atlas Venture Opportunity Fund I, LP | — | Jun 23, 2026 | Proposed Sale | $20.87 | 30,774 | $642.3K | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 23, 2026 | Proposed Sale | $99.45 | 173 | $17.2K | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 22, 2026 | Proposed Sale | $90.43 | 34,152 | $3.1M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 18, 2026 | Proposed Sale | $89.90 | 14,128 | $1.3M | — | |
KYMR | Atlas Venture Opportunity Fund I, LP | — | Jun 17, 2026 | Proposed Sale | $87.44 | 12,902 | $1.1M | — |
Page 1 of 3
Next →