Willem Elfrink

Sits on 1 board. Last updated September 28, 2026

Time on boards

Boards served
1
Current seats
1
Board service
4 years
Director since
2023

4 years of board service in total across 1 board, counting each seat separately. Longest: Heartbeam Inc., 3 years.

Heartbeam Inc. Director
3 years ยท Since 2023

Shareholder support

Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Apr 16, 2026 Heartbeam Inc. Open-market purchase +187,500 $0.80 $150,000
Jun 12, 2024 Heartbeam Inc. Grant or award +33,185 โ€” โ€”
Jul 13, 2023 Heartbeam Inc. Grant or award +23,961 โ€” โ€”
Feb 9, 2023 Heartbeam Inc. Sold back to the company โˆ’125,351 โ€” โ€”
Feb 9, 2023 Heartbeam Inc. Derivative conversion +3,640 $2.75 $10,010

Reviews (0)

Sign in to write a review.

No reviews yet. Be the first to write one.

We use cookies to run this site and, with your permission, to measure traffic and support the affiliate links that help fund it.