Interdigital, Inc.
A research and patent licensing company whose inventions in wireless (3G through 6G, Wi-Fi) and video compression (HEVC, VVC, HDR) power the smartphones and streaming services most people use daily. It was founded in 1972 by Sherwin Seligsohn, who dreamed up a handheld wireless phone while stuck on an Atlantic City beach, and originally built phones under the name International Mobile Machines before shifting to pure licensing. Today its technology lives invisibly inside countless devices, and its patents are licensed through marketplaces like Avanci for cars and connected gadgets.
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| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Campagna Harry GDirector · 22 transactions | — | 253.0Kas of Jun 2009 | 410.0K | — | 345.0K |
| Chen Lawrence LirenPresident and CEO, Director · 131 transactions | — | 178.7K | 468.3K | — | 141.5K |
| Clontz Steven TDirector · 48 transactions | — | 128.9Kas of Apr 2015 | 204.9K | 10.0K | 134.0K |
| Merritt William JFormer Pres, CEO & Director · 157 transactions | — | 92.6Kas of Mar 2021 | 517.4K | 6.8K | 225.6K |
| Brezski RichardChief Financial Officer · 261 transactions | — | 84.8K | 304.8K | — | 99.7K |
| McQuilkin Scott ASr. EVP, Innovation · 94 transactions | — | 78.9Kas of Jan 2018 | 110.9K | — | 5.4K |
| Pankaj RajeshChief Technology Officer · 70 transactions | — | 69.5K | 155.7K | — | 25.6K |
| Oistamo Kai OlaviChief Operating Officer · 39 transactions | — | 52.2Kas of Jul 2020 | 56.2K | — | 1.0K |
| Shay Lawrence FSEVP,Fut.Wireless,&Ch.IPCouns. · 109 transactions | — | 51.6Kas of Jan 2018 | 151.4K | — | 77.7K |
| Lemmo Mark AEVP, Corporate Development · 36 transactions | — | 45.6Kas of Oct 2012 | 51.2K | 2.3K | 118.1K |
| Tirri HenryChief Technology Officer · 13 transactions | — | 45.5Kas of Apr 2022 | 35.3K | — | — |
| Bolgiano D RidgelyDirector · 4 transactions | — | 44.8Kas of Jul 2008 | 1.9K | — | — |
| Kiernan Brian GExecutive VP, Standards · 30 transactions | — | 42.9Kas of Feb 2010 | 93.9K | — | 86.8K |
| Nolan James JEVP, Products · 143 transactions | — | 42.8Kas of Oct 2018 | 139.5K | 3.2K | 83.3K |
| Hakoranta Eeva K.Chief Licensing Officer · 63 transactions | — | 34.3Kas of Mar 2025 | 73.9K | — | 19.0K |
| Schmidt Joshua D.CLO & Corp Secretary · 87 transactions | — | 30.0K | 64.1K | — | 13.0K |
| Lau Jannie KCLO, GC & Corp Sec · 99 transactions | — | 29.3Kas of Oct 2019 | 73.0K | — | 27.1K |
| Rankin Jean FDirector · 122 transactions | — | 28.9K | 49.4K | — | 11.5K |
| Isaacs Gary DChief Admin. Officer · 54 transactions | — | 28.6Kas of Oct 2012 | 87.4K | — | 73.3K |
| Cohen EricChief Strategy& Growth Officer · 29 transactions | — | 26.0Kas of Jul 2023 | 58.0K | — | 16.2K |
| Gillman Joan HDirector · 54 transactions | — | 23.0K | 24.4K | — | 1.4K |
| Miller William CExec. VP, Prog. & Cust.Support · 7 transactions | — | 22.3Kas of Jan 2009 | 7.4K | — | — |
| Hutcheson Stewart DDirector · 82 transactions | — | 22.0K | 34.7K | — | 10.0K |
| Shaner Robert WDirector · 1 transaction | — | 22.0Kas of Jun 2008 | 2.0K | — | — |
| Gulino Richard L.CLO, GC & Corp Sec · 15 transactions | — | 20.5Kas of Oct 2021 | 22.4K | — | — |
| Belk Jeffrey KDirector · 59 transactions | — | 20.2Kas of Jul 2018 | 33.3K | — | 6.5K |
| Point Janet MeenehanExec. VP, Investor Relations · 37 transactions | — | 19.3Kas of Oct 2012 | 31.4K | 1.5K | 24.9K |
| Kritzmacher John ADirector · 132 transactions | — | 16.4K | 53.7K | 49 | 26.8K |
| Amelio Gilbert FDirector · 30 transactions | — | 15.5Kas of Apr 2015 | 20.7K | — | 7.2K |
| Proithis Allen AEVP, Solutions Group · 24 transactions | — | 15.4Kas of Apr 2014 | 17.8K | — | 646 |
| Roath Robert SDirector · 57 transactions | — | 15.3Kas of Jun 2017 | 174.2K | — | 275.7K |
| Kamins EdwardDirector · 41 transactions | — | 13.8Kas of Apr 2015 | 29.5K | — | 33.0K |
| Yi Byung KEVP, InterDigital Labs, & CTO · 10 transactions | — | 13.7Kas of Oct 2015 | 9.8K | — | — |
| Trahanas Philip PDirector · 35 transactions | — | 12.5Kas of Apr 2021 | 17.4K | — | 5.0K |
| Markley John D. Jr.Director · 74 transactions | — | 11.7K | 24.3K | — | 12.6K |
| Sprecher Steven WayneGeneral Counsel & Secretary · 38 transactions | — | 11.6Kas of Oct 2012 | 20.0K | — | 7.7K |
| Mattis Julia CChief Licensing Officer · 11 transactions | — | 11.5K | 7.7K | — | 1.6K |
| Bernstein Bruce GChief IP & Licensing Officer · 3 transactions | — | 9.6Kas of Jan 2008 | 1.0K | — | — |
| Soni Naresh HimatlalChief Technology Officer · 33 transactions | — | 9.1Kas of Oct 2012 | 11.5K | — | 2.4K |
| Macnichol Marie HagartyChf. Lic. Counsel & Lic. Ofc. · 10 transactions | — | 8.2Kas of Oct 2015 | 8.7K | — | — |
| Aberle Derek KDirector · 32 transactions | — | 7.6K | 8.7K | — | 4.0K |
| Lesaicherre Pierre-YvesDirector · 23 transactions | — | 7.0Kas of Jun 2024 | 11.0K | — | 4.0K |
| Simpson Todd GEVP, Innovation Partners · 5 transactions | — | 6.5Kas of Jan 2014 | 6.5K | — | — |
| Dinella Donald PChf. Lic. Ofc. & Lic. Counsel · 5 transactions | — | 5.7Kas of Jan 2014 | 5.7K | — | — |
| Armaly SamirDirector · 25 transactions | — | 4.6K | 7.6K | — | 3.0K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -1.91M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.