WaveMan · Form 4
Heinzmann David W insider trades
> Search tickers & screens ⌘K
LIVE

Heinzmann David W insider trades

Heinzmann David W has filed 23 Form 4s with the SEC that we hold, for Littelfuse INC /DE (LFUS) (President & CEO, Director) and Gentherm Inc (THRM) (Director). Across all of them we count 0 purchases worth $0 and 37 sales worth $21.2M 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 9,867 shares of Littelfuse INC /DE worth $2.9M, dated 2021-10-21. The first filing on our record is dated 2021-10-22 and the latest 2026-05-15.

Littelfuse INC /DE (LFUS)

President & CEO, Director · 18 filings · 37 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-10-21S, sale reported on Form 49,867$2.9M2021-10-22
2021-11-15S, sale reported on Form 4200$65.6K2021-11-16
2021-11-15S, sale reported on Form 4100$33.2K2021-11-16
2021-11-15S, sale reported on Form 41,396$451.8K2021-11-16
2021-11-15S, sale reported on Form 4300$99.1K2021-11-16
2021-11-15S, sale reported on Form 46,546$2.1M2021-11-16
2021-11-15S, sale reported on Form 43,138$1.0M2021-11-16
2021-11-15S, sale reported on Form 4800$261.3K2021-11-16
2021-11-15S, sale reported on Form 4300$99.3K2021-11-16
2021-11-16S, sale reported on Form 4764$246.6K2021-11-18
2021-11-16S, sale reported on Form 4741$240.0K2021-11-18
2021-11-16S, sale reported on Form 4405$131.8K2021-11-18
2021-11-16S, sale reported on Form 41,270$414.9K2021-11-18
2021-11-16S, sale reported on Form 4944$309.5K2021-11-18
2021-11-16S, sale reported on Form 4100$32.9K2021-11-18
2023-02-14S, sale reported on Form 4100$27.0K2023-02-16
2023-02-14S, sale reported on Form 41,400$373.7K2023-02-16
2023-02-14S, sale reported on Form 4700$186.0K2023-02-16
2023-02-14S, sale reported on Form 4901$242.3K2023-02-16
2023-02-14S, sale reported on Form 41,700$456.1K2023-02-16
2023-02-15S, sale reported on Form 4308$82.9K2023-02-16
2023-02-15S, sale reported on Form 46,930$1.9M2023-02-16
2023-02-15S, sale reported on Form 45,527$1.5M2023-02-16
2023-02-15S, sale reported on Form 42,600$690.5K2023-02-16
2023-02-15S, sale reported on Form 43,900$1.0M2023-02-16
2024-07-16S, sale reported on Form 4819$225.5K2024-07-18
2024-07-16S, sale reported on Form 44,784$1.3M2024-07-18
2024-07-16S, sale reported on Form 42,555$698.6K2024-07-18
2024-07-17S, sale reported on Form 4300$82.0K2024-07-18
2024-07-18S, sale reported on Form 411$3.0K2024-07-19
2024-07-31S, sale reported on Form 4738$202.5K2024-08-01
2024-07-31S, sale reported on Form 43,048$834.5K2024-08-01
2024-08-23S, sale reported on Form 4420$115.6K2024-08-26
2024-08-23S, sale reported on Form 45,913$1.6M2024-08-26
2024-08-23S, sale reported on Form 42,382$651.7K2024-08-26
2024-08-26S, sale reported on Form 41,342$369.1K2024-08-27
2024-08-26S, sale reported on Form 4749$205.2K2024-08-27

Gentherm Inc (THRM)

Director · 5 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1279765) 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.
Privacy · Terms