Heiden William K (CIK 0001214939)

Latest company ownership

Role: Director
Shares held
111,000
Last filed at
Aug 21, 2025
Confidence Score
58.4
2025Q4
Confidence Score History
2025Q3 2025Q4
Shares held
22,188
Last filed at
Jun 12, 2025
Confidence Score
50.0
2025Q4
Confidence Score History
2023Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Aug 19, 2025 Aug 21, 2025 MACROGENICS INC Director Buy 95.0 +100,000 909.09% $150.5K
Nov 10, 2023 Nov 14, 2023 Atara Biotherapeutics, Inc. Director Buy 91.3 +100,000 91.74% $25.3K