AMPL — Amplitude, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-09-28.
Performance
Technicals
Others in Technology
Measured signals that fired on AMPL
| date | signal | measured base rate |
|---|---|---|
| 2026-08-11 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-08-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-23 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-07 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-29 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-09 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-17 | Crook Nathaniel Glenn Chief Commercial Officer | Shares withheld for tax | 109.4K | 13.03 | 1.4M |
| 2026-08-17 | Casey Andrew Chief Financial Officer | Shares withheld for tax | 72.8K | 13.03 | 948.8K |
| 2026-08-17 | Liu Curtis Chief Technology Officer | Shares withheld for tax | 53.9K | 13.03 | 702.0K |
| 2026-08-17 | Skates Spenser CEO and President | Shares withheld for tax | 52.4K | 13.03 | 682.4K |
| 2026-07-05 | Schultz Erica Director | Grant or award | 1.7K | 0.00 | 0 |
| 2026-07-05 | Tzuo Tien Director | Grant or award | 1.5K | 0.00 | 0 |
| 2026-06-12 | Wong Catherine Director | Open-market sale 10b5-1 plan | 7.5K | 6.79 | 50.6K |
| 2026-06-09 | Gill Ronald S Director | Grant or award | 24.9K | 0.00 | 0 |
| 2026-06-09 | Whitehurst James M Director | Grant or award | 24.9K | 0.00 | 0 |
| 2026-06-09 | Schultz Erica Director | Grant or award | 24.9K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 76.1M | 11.2M |
| BlackRock, Inc. | 69.3M | 10.2M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 42.0M | 6.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | 27.9M | 4.1M |
| FMR LLC | 22.6M | 3.3M |
| SC US (TTGP), LTD. | 19.1M | 2.8M |
| BAILLIE GIFFORD & CO | 18.0M | 2.6M |
| Nuveen, LLC | 17.4M | 2.6M |
| STATE STREET CORP | 16.6M | 2.4M |
| Point72 Asset Management, L.P. | 16.4M | 2.4M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-18 | 2026-08-17 | on EDGAR ↗ |
| 4 | 2026-08-18 | 2026-08-17 | on EDGAR ↗ |
| 4 | 2026-08-18 | 2026-08-17 | on EDGAR ↗ |
| 4 | 2026-08-18 | 2026-08-17 | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-06 | — | on EDGAR ↗ |
| 10-Q | 2026-08-06 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-05 | 2026-08-05 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-07-27 | — | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Software's AI Panic Is Fading, and These 10 Stocks Are the First to Benefit · 2026-08-20 · benzinga
- Amplitude, Inc. (AMPL) filed form 4 · 2026-08-18 · SEC EDGAR
- Amplitude, Inc. (AMPL) filed form 4 · 2026-08-18 · SEC EDGAR
- Amplitude, Inc. (AMPL) filed form 4 · 2026-08-18 · SEC EDGAR
- Amplitude, Inc. (AMPL) filed form 4 · 2026-08-18 · SEC EDGAR
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