InsidersTradesSigma
Total declarations
Companies
▲ Purchases (3 ops.)
▼ Sales (0 ops.)
Insider track record
ExecutiveDisclosed buys
3
Disclosed sells
0
T+90 hit rate
100%
T+90 mean return
+57.3%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by Postma Robert W, Director. Director active across 2 companies, notably Ziopharm Oncology INC. In total, 8 filings have been logged. Split: 3 buys · 0 sell. Total volume traded: €531k. Activity tracked since 4 March 2021. The latest transaction was filed on 13 April 2025 (Attribution). Regulator: SEC (Form 4). All data is free.
Declarations8 total
20,804 shares@ US$2.9210.2% of flowCommon StockSEC:0000950170-25-054436:0
750,000 shares@ US$0.6589.8% of flowCommon StockSEC:0000899243-22-037275:0
Ideal exit: 26 Aug 2023 (T+270)
40,000 shares0Common StockSEC:0000899243-22-024005:0
40,000 shares0Common StockSEC:0000899243-22-023987:0
20,508 shares@ US$1.7350.0% of flowCommon StockSEC:0001209191-21-054825:0
Ideal exit: 30 May 2022 (T+270)
20,508 shares@ US$1.7350.0% of flowCommon StockSEC:0001209191-21-054825
Ideal exit: 30 May 2022 (T+270)
2,500 shares0Common StockSEC:0001209191-21-030742:0
2,500 sharesCommon StockSEC:0001209191-21-030742
8 of 8 declarations
About Postma Robert W
Robert W. Postma is a Director at ZIOPHARM Oncology Inc and Alaunos Therapeutics, Inc. In this role, he participates in the governance of the companies and in strategic decision-making. His experience in the biopharmaceutical sector allows him to make significant contributions to board discussions.
