| 2020-07-01 | LEONARD JOHN M. | President and CEO | Sale+OE | 5,000 | $21.83 | $109,150.00 | -1.1% | → |
| 2020-06-16 | Rivera Jose E | EVP, General Counsel | Sale+OE | 5,615 | $21.00 | $117,915.00 | -20.1% | → |
| 2020-06-03 | LEONARD JOHN M. | President and CEO | Sale+OE | 5,000 | $21.83 | $109,150.00 | -1.1% | → |
| 2020-05-26 | Rivera Jose E | EVP, General Counsel | Sale+OE | 5,615 | $21.21 | $119,094.15 | -2.0% | → |
| 2019-03-06 | SCHIERMEIER ANDREW | EVP, Dev and Corp Strategy | Buy | 7,500 | $15.72 | $117,875.00 | +230.8% | → |
| 2018-07-16 | FORMELA JEAN FRANCOIS | Director | Sell | 6,686 | $31.17 | $208,397.27 | -82.7% | → |
| 2018-06-19 | FORMELA JEAN FRANCOIS | Director | Sell | 6,686 | $27.96 | $186,908.24 | -82.7% | → |
| 2018-05-16 | FORMELA JEAN FRANCOIS | Director | Sell | 6,686 | $25.04 | $167,389.36 | -100% | → |
| 2018-05-14 | LEONARD JOHN M. | President and CEO | Sell | 8,400 | $24.00 | $201,600.00 | -100% | → |
| 2018-03-20 | FORMELA JEAN FRANCOIS | Director | Sell | 39,245 | $23.87 | $936,742.63 | -51.7% | → |
| 2018-01-29 | Caribou Biosciences, Inc. | - | Sell | 550,645 | $26.78 | $14,746,273.10 | -12.1% | → |
| 2017-12-08 | Bermingham Nessan | President & CEO | Sell | 336,783 | $20.78 | $7,000,019.24 | -10.2% | → |
| 2017-09-13 | Caribou Biosciences, Inc. | - | Sell | 1,048,846 | $0.00 | - | -18.7% | → |
| 2017-07-11 | FORMELA JEAN FRANCOIS | Director | Sell | 150,000 | $16.24 | $2,435,440.00 | -1.4% | → |
| 2017-07-11 | Atlas Venture Fund IX, L.P. | 10% Owner | Sell | 150,000 | $16.24 | $2,435,440.00 | -1.4% | → |
| 2017-03-10 | Atlas Venture Associates IX, L.P. | 10% Owner | Sell | 21,132 | $13.91 | $293,842.63 | -79.3% | → |
| 2017-03-10 | FORMELA JEAN FRANCOIS | Director | Sell | 21,132 | $13.91 | $293,842.63 | -79.3% | → |
| 2016-05-11 | ORBIMED ADVISORS LLC | Director | Buy | 250,000 | $18.00 | $4,500,000.00 | +5.0% | → |
| 2016-05-11 | Temasek Holdings (Private) Ltd | 10% Owner | Buy | 300,000 | $18.00 | $5,400,000.00 | +61.2% | → |
| 2016-05-11 | GORDON CARL L | Director | Buy | 250,000 | $18.00 | $4,500,000.00 | +5.0% | → |
| 2016-05-11 | BAKER BROS. ADVISORS LP | Former 10% owner | Buy | 200,000 | $18.00 | $3,600,000.00 | +23.2% | → |