InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
1
Disclosed sells
0
T+90 hit rate
75%
T+90 mean return
+11.6%
Across 4 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by HEIDEN WILLIAM K, Director. Officer active across 3 companies, notably Atara Biotherapeutics, Inc.. Cumulatively, 9 reports have been logged. Split: 1 buy · 0 sell. Total volume traded: €24k. Activity tracked since 8 June 2021. The latest transaction was disclosed on 20 May 2024 (Levée d'options). Regulator: SEC (Form 4). All data is openly available.
Declarations9 total
12,000 sharesCommon StockSEC:0000905148-26-002921:0
6,500 sharesCommon StockSEC:0001125345-25-000082:0
4,500 shares0Common StockSEC:0001125345-24-000108:0
150,000 shares0Common StockSEC:0000905148-24-001059:0
100,000 shares@ US$0.2533100.0% of flowCommon StockSEC:0000905148-23-001450:0
Ideal exit: 6 Aug 2024 (T+270)
57,000 shares0Common StockSEC:0001140361-23-028149:0
20,500 shares0Common StockSEC:0001140361-22-024165:0
11,000 shares0Common StockSEC:0001140361-21-020444
11,000 shares0Common StockSEC:0001140361-21-020444:0
9 of 9 declarations
About HEIDEN WILLIAM K
William K. Heiden serves as a Board Member at Atara Biotherapeutics, Inc. He plays a key role in the governance of the company, bringing his expertise in biotechnology and product development. As a board member, he is involved in overseeing operations and strategic decision-making processes that influence Atara's direction. His experience enables him to contribute to innovation and research in the healthcare sector.
