WaveMan · Form 4
Martin William C insider trades
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Martin William C insider trades

Martin William C has filed 51 Form 4s with the SEC that we hold, for Immersion Corp (IMMR) (Chief Strategy Officer, Director), Barnes & Noble Education, Inc. (BNED) (Director, 10% owner) and Universal Electronics INC (UEIC) (10% owner). Across all of them we count 23 purchases worth $3.6M and 2 sales worth $2.4M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 353,374 shares of Immersion Corp worth $2.4M, dated 2021-11-11. The first filing on our record is dated 2021-11-15 and the latest 2026-10-08.

Immersion Corp (IMMR)

Chief Strategy Officer, Director · 45 filings · 19 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-11-11S, sale reported on Form 4353,374$2.4M2021-11-15
2021-12-29S, sale reported on Form 41,000$5.8K2022-01-03
2022-05-27P, purchase reported on Form 450,000$286.0K2022-06-01
2022-05-31P, purchase reported on Form 410,000$56.1K2022-06-01
2022-08-18P, purchase reported on Form 473,143$389.1K2022-08-22
2022-08-19P, purchase reported on Form 426,857$142.1K2022-08-22
2022-08-22P, purchase reported on Form 417,285$92.5K2022-08-22
2022-08-25P, purchase reported on Form 415,141$86.2K2022-08-29
2022-08-26P, purchase reported on Form 420,000$113.4K2022-08-29
2022-08-29P, purchase reported on Form 410,000$57.1K2022-08-29
2022-08-30P, purchase reported on Form 41,573$9.0K2022-09-01
2022-09-01P, purchase reported on Form 415,000$85.0K2022-09-06
2022-09-02P, purchase reported on Form 425,000$142.5K2022-09-06
2022-09-06P, purchase reported on Form 419,105$108.5K2022-09-06
2022-09-13P, purchase reported on Form 416,243$94.0K2022-09-15
2022-09-14P, purchase reported on Form 413,603$78.8K2022-09-15
2024-08-27P, purchase reported on Form 415,000$132.2K2024-08-29
2024-08-28P, purchase reported on Form 45,000$43.0K2024-08-29
2025-03-20P, purchase reported on Form 427,150$205.0K2025-03-24

Barnes & Noble Education, Inc. (BNED)

Director, 10% owner · 5 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-07-08P, purchase reported on Form 460,000$418.8K2024-07-10
2024-07-09P, purchase reported on Form 420,000$143.6K2024-07-10
2024-07-10P, purchase reported on Form 438,000$273.2K2024-07-10
2024-07-10P, purchase reported on Form 412,000$86.3K2024-07-10

Universal Electronics INC (UEIC)

10% owner · 1 filing · 2 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-11-03P, purchase reported on Form 425,000$204.0K2023-11-07
2023-11-07P, purchase reported on Form 448,962$396.1K2023-11-07
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1205885) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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