Mark S. MD Gelder does not have any significant net worth to report based on the numbers we have. This is based on reported shares across multiple companies, which include AP PHARMA INC /DE/, and Onconova Therapeutics, Inc..

2021 was Mark S. MD Gelder's most active year for acquiring shares with 4 total transactions. Mark S. MD Gelder's most active month to acquire stocks was the month of January. 2022 was Mark S. MD Gelder's most active year for disposing of shares, totalling 2 transactions. Mark S. MD Gelder's most active month to dispose stocks was the month of January. 2021 saw Mark S. MD Gelder paying a total of $10,000.20 for 78,156 shares, this is the most they've acquired in one year. In 2023 Mark S. MD Gelder cashed out on 7,075 shares for a total of $1,689.12, their largest year based on trade value.