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 |
|---|---|---|---|---|---|---|---|---|---|
KYMR | Atlas Venture Opportunity Fund I, L.P. | — | Dec 11, 2025 | Proposed Sale | $87.81 | 976 | $85.7K | — | |
KYMR | Atlas Venture Opportunity Fund I, L.P. | — | Dec 10, 2025 | Proposed Sale | $89.89 | 36,769 | $3.3M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Oct 17, 2025 | Proposed Sale | $89.94 | 35,000 | $3.1M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Oct 16, 2025 | Proposed Sale | $76.98 | 1,425 | $109.7K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Oct 15, 2025 | Proposed Sale | $73.00 | 22,160 | $1.6M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Oct 8, 2025 | Proposed Sale | $67.89 | 71,961 | $4.9M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Oct 7, 2025 | Proposed Sale | $69.28 | 18,039 | $1.2M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Aug 22, 2025 | Proposed Sale | $59.75 | 2,287 | $136.6K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Aug 14, 2025 | Proposed Sale | $61.10 | 7,212 | $440.7K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Aug 13, 2025 | Proposed Sale | $59.03 | 24,962 | $1.5M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Aug 5, 2025 | Proposed Sale | $59.79 | 395 | $23.6K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Jul 30, 2025 | Proposed Sale | $59.80 | 8,492 | $507.8K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Jul 24, 2025 | Proposed Sale | $60.94 | 13,033 | $794.2K | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Jul 23, 2025 | Proposed Sale | $60.74 | 29,837 | $1.8M | — | |
IRON | Atlas Venture Opportunity Fund I, L.P. | — | Jul 18, 2025 | Proposed Sale | $57.79 | 664 | $38.4K | — |
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