Spenser Skates owns 4.52% of Amplitude
5,649,303 shares as of the October 2, 2026 filing, worth $83.3M at the latest close.
AMPL · $1.8B market cap · Founder-ledGet an email when Spenser Skates’s stake moves.
Free.
The stake
4.52%
worth $83.3M at the latest close
Stake rank
#493
by dollar value of the stake
Last sale
17 days ago
Oct 2, 2026
Last buy
None
no purchases since 2021
Spenser Skates owns 4.52% of Amplitude, Inc.: 5,649,303 of 124,916,066 shares, worth about $83.3M at the 2026-10-16 close. The stake has moved from 7.02% in 2021 to 4.52% on 2026-10-02, across 8 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $1M on 2026-10-02.
How the stake is held
as of the Oct 2, 2026 filing
SHARES
OF THE STAKE
CLASS B · stated Oct 2, 2026 · Form 4 ↗
HELD DIRECTLY
5,342,146
94.6%
HELD INDIRECTLY · By Spouse
307,157
5.4%
THE STAKE
5,649,303
4.52%