Clarke John K (CIK 0001219015)

Latest company ownership

Role: Director
Shares held
2,329,121
Last filed at
Jun 13, 2013
Confidence Score
50.0
2025Q4
Confidence Score History
2012Q1 2025Q4
Role: Director
Shares held
19,797
Last filed at
Apr 28, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q3 2025Q4
Shares held
15,000
Last filed at
Jun 4, 2018
Confidence Score
50.0
2025Q4
Confidence Score History
2014Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
May 21, 2021 May 25, 2021 aTYR PHARMA INC Director Sell 26.3 -2,500 -2.12% $10.9K
Aug 28, 2020 Sep 3, 2020 aTYR PHARMA INC Director Sell 26.3 -7,360 -5.87% $29.5K
Aug 26, 2020 Aug 28, 2020 aTYR PHARMA INC Director Sell 26.3 -7,640 -5.74% $31.7K
May 31, 2018 Jun 4, 2018 ALNYLAM PHARMACEUTICALS, INC. Director Sell 5.0 -15,000 -62.79% $1.5M
May 21, 2014 May 23, 2014 ALNYLAM PHARMACEUTICALS, INC. Director Sell 5.0 -35,000 -79.74% $1.9M
Jun 12, 2013 Jun 13, 2013 Verastem, Inc. Director Buy 82.5 +23,171 1.00% $222.4K
Jun 11, 2013 Jun 12, 2013 Verastem, Inc. Director Buy 82.5 +25,000 1.10% $230.5K
May 13, 2013 May 15, 2013 Verastem, Inc. Director Buy 82.5 +25,000 1.11% $243.4K
May 1, 2013 May 3, 2013 Verastem, Inc. Director Buy 65.0 +10,000 0.45% $96.6K
Apr 17, 2013 Apr 19, 2013 Verastem, Inc. Director Buy 65.0 +5,631 0.25% $53.5K
Dec 18, 2012 Dec 20, 2012 Verastem, Inc. Director Buy 61.3 +6,193 0.28% $48.7K
Feb 1, 2012 Feb 3, 2012 Verastem, Inc. Director Buy 100.0 +250,000 12.60% $2.5M