InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (9 ops.)
Insider track record
ExecutiveDisclosed buys
1
Disclosed sells
9
T+90 hit rate
70%
T+90 mean return
+11.4%
Across 20 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the detailed record of transactions filed by KRITZMACHER JOHN A, Director. Insider active across 3 companies, notably InterDigital, Inc.. Aggregated, 43 filings have been recorded. Split: 1 buy · 9 sells. Total volume traded: €2.2m. Activity tracked since 30 April 2021. The latest transaction was disclosed on 22 April 2026 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations43 total
1.94 shares0Common StockSEC:0001628280-26-027006:0
1,250 shares@ US$331.000.0043% mcap21.1% of flowCommon StockSEC:0001628280-25-058782:0
1,250 shares@ US$357.370.0047% mcap23.0% of flowCommon StockSEC:0001628280-25-056231:0
2.732 shares0Common StockSEC:0001628280-25-035993:0
1,036 shares0Common StockSEC:0001628280-25-031133:0
243 shares@ US$225.883.5% of flowCommon StockSEC:0001628280-25-030609:0
0.678 shares@ US$223.510.0% of flowCommon StockSEC:0001628280-25-030198:0
5.408 shares0Common StockSEC:0001628280-25-020003:0
44,643 shares0Common StockSEC:0001062993-25-003723:0
4.495 shares0Common StockSEC:0001628280-25-002495:0
5.134 shares0Common StockSEC:0001628280-24-043744:0
2,500 shares@ US$138.7214.5% of flowCommon StockSEC:0001628280-24-041128:0
5.643 shares0Common StockSEC:0001628280-24-033084:0
769 shares@ US$115.283.8% of flowCommon StockSEC:0001628280-24-027811:0
0.607 shares@ US$117.300.0% of flowCommon StockSEC:0001628280-24-027502:0
1,711 shares0Common StockSEC:0001405495-24-000083:0
8.789 shares0Common StockSEC:0001628280-24-018652:0
36,037 shares0Common StockSEC:0001062993-24-004751:0
8.299 shares0Common StockSEC:0001405495-24-000026:0
11.27 shares0Common StockSEC:0001209191-23-053753:0
8.249 shares0Common StockSEC:0001209191-23-043673:0
49 shares@ US$47.320.1% of flowCommon StockSEC:0001209191-23-038747:0
Ideal exit: 8 Jul 2023 (T+270)
1,030 shares@ US$86.173.9% of flowCommon StockSEC:0001209191-23-035803:0
0.295 shares@ US$83.490.0% of flowCommon StockSEC:0001209191-23-034429:0
15.059 shares0Common StockSEC:0001209191-23-025946:0
25 of 43 declarations
About KRITZMACHER JOHN A
John A. Kritzmacher has served as a director of InterDigital since June 2009. Public sources state that he served as Executive Vice President and Chief Financial Officer of John Wiley & Sons, Inc. from 2013 to 2021, and that he joined the Unisys board in 2022, where he chairs the Audit and Finance Committee and also serves on the Security and Risk Committee. Public company materials also say he held senior roles at WebMD Health Corp., Global Crossing Limited, and earlier at Lucent Technologies and Alcatel-Lucent. Sources : https://ir.interdigital.com/Sustainability/governance/leadership/person-details/default.aspx?itemid=8a43a478-3a85-4ca4-8590-4090976c6716
