Companies / Amplitude, Inc.
Amplitude, Inc.
Nasdaq: AMPLCIK 1866692SAN FRANCISCO, CA
Financials · FY2025
Ownership
124.9M shares outstanding · as of Aug 3, 2026
Ownership
Share classes
| Class A | 81.06% | |
| Class B | 18.94% |
| Insiders | 3.04% | 3,802,114 |
| 10%+ / strategic | 8.67% | 10,826,009 |
| Institutions | 50.47% | 63,045,651 |
| Public float | 37.82% | 47,242,292 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 6
View all →| Insider | % of shares | Shares |
|---|---|---|
Hansen Thomas NeergaardPresident | 1.48% | 1,845,845 |
Casey AndrewChief Financial Officer | 0.85% | 1,066,770 |
Liu CurtisChief Technology Officer · Director · 10% owner | 0.48% | 603,756 |
Whitehurst James MDirector | 0.15% | 187,201 |
Tzuo TienDirector | 0.08% | 98,542 |
Crook Nathaniel GlennChief Commercial Officer | — | — |
Institutional holders 218
View all →| Holder | Value | % of shares |
|---|---|---|
| $125.36M | 8.67% | |
| $76.84M | 8.04% | |
| $40.51M | 2.80% | |
| $32.41M | 2.24% | |
| $30.64M | 2.12% | |
| $22.74M | 1.57% | |
| $19.93M | 2.09% | |
| $18.30M | 1.26% | |
| $17.96M | 2.11% | |
| $17.37M | 1.20% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Trim | Common stock | $-68.62M | -5.9M -94.91% | 317,618 0.25% of shares | high |
| Q1 2026 as of | TimesSquare Capital Management, LLC 13F manager | Trim | Common stock | $-17.14M | -2.5M -99.99% | 287 <0.01% of shares | medium |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | New | Common stock | $3.93M | +576K | 576,301 0.46% of shares | low |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | Exit | Common stock | $-2.96M | -255K -100.00% | 0 | low |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $2.67M | +392K +46.43% | 1,235,028 0.99% of shares | low |
| Q1 2026 as of | Trigran Investments, Inc. 13F manager | New | Common stock | $2.60M | +381K | 380,526 0.30% of shares | low |
| Q1 2026 as of | Gagnon Securities LLC 13F manager | Add | Common stock | $2.46M | +361K +51.65% | 1,059,836 0.85% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Trim | Common stock | $-2.38M | -350K -33.58% | 691,661 0.55% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Vanguard Group Inc | Passive13G/A | — |
| T. Rowe Price Investment Management, Inc. | Passive13G/A | — |
| AllianceBernstein L.P. | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AMPL | — | 03213A104 |