Amplitude Inc
Ownership
Ownership Structure
Who owns Amplitude Inc (AMPL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.4% of the shares are freely tradable; institutional investors hold 81.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Wellington Management Company LLP | 8.87 | 11,086,006 | -0.6 | 06/30/2026 |
| BlackRock Inc | 8.04 | 10,044,780 | -1.2 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.87 | 6,083,939 | -1.3 | 06/30/2026 |
| FMR Inc | 4.79 | 5,979,436 | +80.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.15 | 3,939,697 | -3.7 | 06/30/2026 |
| SC US (TTGP), LTD. | 2.24 | 2,798,951 | +0.0 | 06/30/2026 |
| State Street Corp | 2.09 | 2,604,696 | +7.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Software & IT Svcs Port | 3.80 | 4,743,676 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.25 | 2,805,537 | +0.0 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.01 | 2,506,446 | -1.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Crook Nathaniel Glenn | Chief Commercial Officer | 1,622,696 | 27,261,293 $ | Sep 4, 2026 | direct |
| Casey Andrew | Chief Financial Officer | 1,363,338 | 22,904,078 $ | Aug 17, 2026 | direct |
| Skates Spenser | CEO and President | 1,231,188 | 20,683,958 $ | Aug 17, 2026 | both |
| Liu Curtis | Chief Technology Officer | 950,316 | 15,965,309 $ | Aug 17, 2026 | direct |
| Schultz Erica | Director | 143,992 | 2,419,066 $ | Oct 5, 2026 | direct |
| Tzuo Tien | Director | 102,419 | 1,720,639 $ | Oct 5, 2026 | direct |
| Raji Vijaye Ganesh | Director | 37,851 | 635,897 $ | Oct 15, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 28, 2026 | Skates Spenser | CEO and President | Sell | 6,651 | 17.53 | 116,564 |
| Oct 28, 2026 | Skates Spenser | CEO and President | Other | 6,651 | 0.00 | – |
| Oct 26, 2026 | Skates Spenser | CEO and President | Sell | 200 | 17.47 | 3,494 |
| Oct 26, 2026 | Skates Spenser | CEO and President | Sell | 100 | 17.45 | 1,745 |
| Oct 26, 2026 | Skates Spenser | CEO and President | Other | 300 | 0.00 | – |
| Oct 23, 2026 | Skates Spenser | CEO and President | Sell | 107,136 | 17.52 | 1,876,958 |
| Oct 23, 2026 | Skates Spenser | CEO and President | Other | 107,136 | 0.00 | – |
| Oct 15, 2026 | Raji Vijaye Ganesh | Director | Other | 37,851 | 0.00 | – |
| Oct 5, 2026 | Schultz Erica | Director | Other | 892 | 0.00 | – |
| Oct 5, 2026 | Tzuo Tien | Director | Other | 818 | 0.00 | – |
| Oct 2, 2026 | Skates Spenser | CEO and President | Sell | 70,087 | 14.52 | 1,017,684 |
| Oct 2, 2026 | Skates Spenser | CEO and President | Other | 70,087 | 0.00 | – |
| Oct 1, 2026 | Skates Spenser | CEO and President | Sell | 3,539 | 14.45 | 51,139 |
| Oct 1, 2026 | Skates Spenser | CEO and President | Other | 3,539 | 0.00 | – |
| Sep 30, 2026 | Skates Spenser | CEO and President | Sell | 1,374 | 14.45 | 19,858 |
| Sep 30, 2026 | Skates Spenser | CEO and President | Other | 1,374 | 0.00 | – |
| Sep 10, 2026 | Skates Spenser | CEO and President | Sell | 185,000 | 12.30 | 2,275,611 |
| Sep 10, 2026 | Skates Spenser | CEO and President | Other | 185,000 | 0.00 | – |
| Sep 4, 2026 | Crook Nathaniel Glenn | Chief Commercial Officer | Sell | 300,000 | 12.99 | 3,897,750 |
| Aug 17, 2026 | Liu Curtis | Chief Technology Officer | Other | 53,878 | 13.03 | 702,030 |
| Aug 17, 2026 | Skates Spenser | CEO and President | Other | 52,369 | 13.03 | 682,368 |
| Aug 17, 2026 | Crook Nathaniel Glenn | Chief Commercial Officer | Other | 109,368 | 13.03 | 1,425,065 |
| Aug 17, 2026 | Casey Andrew | Chief Financial Officer | Other | 72,814 | 13.03 | 948,766 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.