If I am not mistaken, Amplitude was the very first SV startup coming up with the idea of the 10-year post-termination exercise window, talked to lawyers who said it cannot be done, persisted and did it anyway late 2015, then open-sourced the approach for others to follow [1].

Triplebyte made a splash by adopting a very similar policy months later in early 2016 (also discussed heavily on HN [2]) and all YC companies were recommended to adopt this approach off the back of Triplebyte starting from the W16 batch [3]. The rest, as they say, is history.

Many companies on this extensive list of ones with 10-year post-terminiation exercie windows [4] might not have this policy if it was not for this know-how benefitting employees put out in the open - between Amplitude, Triplebyte and it spreading to YC, making this approach table stakes a few years later.

Sir, I salute your for doing this not just for doing this for Amplitude employees (who no longer had a "golden handcuff pressure" after vesting their original grant - which is most companies actually see as a benefit, and a way to "leak" less equity thanks to leavers often not being able to exercise), but for a part in moving the tech industry forward.

Legend!

[1] https://amplitude.com/blog/employee-equity-is-broken-heres-o...

[2] https://news.ycombinator.com/item?id=11198991

[3] https://triplebyte.com/blog/fixing-the-inequity-of-startup-e...

[4] https://github.com/holman/extended-exercise-windows