AMPL AMPLITUDE INC
FollowStock (common), issuer CIK 1866692
205 managers (211 13F filers) reported a position in AMPL shares at 2025-12-31, 80,378,188 shares in all. 35 filers opened a position and 28 filers sold out during the quarter.
- Managers
- 205
- 13F filers
- 211
- New
- 35
- Added
- 85
- Reduced
- 56
- Sold out
- 28
- Shares held by filers
- 80,378,188
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
| Owner | Date | Shares | Price | Filing |
|---|---|---|---|---|
| Schultz Ericadirector | 2026-10-05 | +892 A | $0 | Form 4 |
| Tzuo Tiendirector | 2026-10-05 | +818 A | $0 | Form 4 |
| Skates Spenserdirector, officer (CEO and President), 10% owner | 2026-10-02 | -70,087 S | $14.5203 | Form 4 |
| Skates Spenserdirector, officer (CEO and President), 10% owner | 2026-10-02 | +70,087 C | $0 | Form 4 |
13F holders, Q4 2025
Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| MassMutual Private Wealth & Trust, FSB | 16 | $185 | <0.01% | 0 | 13F-HRTimeline |
| HHM Wealth Advisors, LLC | 12 | $139 | <0.01% | 0 | 13F-HRTimeline |
| Dunhill Financial, LLC | 2 | $19 | <0.01% | new | 13F-HRTimeline |
| AlphaQuest LLC | 1 | $12 | <0.01% | -825 | 13F-HRTimeline |
| Covestor Ltd | 17 | $0 | 0% | -2 | 13F-HRTimelineValue filed as zero, left out of ratios. |
Events
Schultz Erica acquired 892 AMPL shares on 2026-10-05, Form 4 filed 2026-10-07. 0001610717-26-000433
Accepted , ingestedTzuo Tien acquired 818 AMPL shares on 2026-10-05, Form 4 filed 2026-10-07. 0001610717-26-000432
Accepted , ingestedSkates Spenser reported transactions in AMPL shares with no net change in a Form 4 filed 2026-10-06. 0001610717-26-000427
Accepted , ingested