Amplitude (AMPL)
Amplitude on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as services-prepackaged software.
7.4M
Short interest
settlement 2026-10-15
4.0
Days to cover
-0.5 days vs prior
50.8%
Short share of volume
2026-11-02
819
Fails to deliver
settlement 2026-10-01
Wed 4 Nov
Next earnings
estimated date
-$9.3M
Insider flow, 90 days
0 buys, 9 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in AMPL is 7,354,191 shares, up 860,119 shares over the last month. Over the last 48 readings it ranged from 1,350,521 shares (13 December 2024) to 8,696,566 shares (15 July 2026). At the reported average volume of 1.8M shares a day that is 4.0 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 7,354,191 | +3.0% | 1,842,113 | 3.99 |
| 2026-09-30 | 7,143,138 | +10.0% | 1,576,711 | 4.53 |
| 2026-09-15 | 6,494,072 | -12.7% | 1,627,420 | 3.99 |
| 2026-08-31 | 7,435,398 | -4.1% | 1,705,001 | 4.36 |
| 2026-08-14 | 7,756,543 | +1.0% | 2,813,192 | 2.76 |
| 2026-07-31 | 7,681,101 | -11.7% | 1,733,362 | 4.43 |
| 2026-07-15 | 8,696,566 | +8.6% | 2,785,471 | 3.12 |
| 2026-06-30 | 8,006,545 | +3.0% | 2,200,104 | 3.64 |
| 2026-06-15 | 7,770,447 | +8.3% | 2,745,731 | 2.83 |
| 2026-05-29 | 7,177,401 | +11.2% | 2,833,860 | 2.53 |
| 2026-05-15 | 6,455,247 | +4.7% | 3,149,730 | 2.05 |
| 2026-04-30 | 6,167,020 | -12.8% | 1,357,086 | 4.54 |
| 2026-04-15 | 7,072,508 | -5.2% | 1,783,700 | 3.97 |
| 2026-03-31 | 7,462,797 | +4.8% | 1,635,797 | 4.56 |
| 2026-03-13 | 7,124,112 | +4.4% | 1,877,767 | 3.79 |
| 2026-02-27 | 6,825,563 | -3.0% | 3,392,351 | 2.01 |
| 2026-02-13 | 7,032,898 | +4.2% | 2,710,611 | 2.59 |
| 2026-01-30 | 6,749,302 | +24.9% | 1,346,142 | 5.01 |
| 2026-01-15 | 5,402,838 | +10.0% | 1,180,488 | 4.58 |
| 2025-12-31 | 4,912,184 | +6.1% | 1,106,634 | 4.44 |
| 2025-12-15 | 4,631,225 | +3.3% | 946,338 | 4.89 |
| 2025-11-28 | 4,484,637 | +1.5% | 1,082,034 | 4.14 |
| 2025-11-14 | 4,416,479 | +6.3% | 2,348,209 | 1.88 |
| 2025-10-31 | 4,154,153 | -20.4% | 1,246,647 | 3.33 |
| 2025-10-15 | 5,220,633 | +2.4% | 1,081,193 | 4.83 |
| 2025-09-30 | 5,096,354 | -5.7% | 1,341,058 | 3.80 |
| 2025-09-15 | 5,404,274 | +20.6% | 1,814,340 | 2.98 |
| 2025-08-29 | 4,482,074 | +1.2% | 1,591,328 | 2.82 |
| 2025-08-15 | 4,427,270 | +15.1% | 2,230,899 | 1.98 |
| 2025-07-31 | 3,847,804 | -11.5% | 1,012,117 | 3.80 |
| 2025-07-15 | 4,345,954 | +7.7% | 1,181,457 | 3.68 |
| 2025-06-30 | 4,033,830 | +14.9% | 1,305,030 | 3.09 |
| 2025-06-13 | 3,511,171 | +20.0% | 1,354,409 | 2.59 |
| 2025-05-30 | 2,926,103 | +0.1% | 1,476,134 | 1.98 |
| 2025-05-15 | 2,923,651 | +13.3% | 1,991,022 | 1.47 |
| 2025-04-30 | 2,580,093 | -4.1% | 937,405 | 2.75 |
| 2025-04-15 | 2,689,661 | -15.3% | 1,314,532 | 2.05 |
| 2025-03-31 | 3,174,573 | +0.7% | 1,034,187 | 3.07 |
| 2025-03-14 | 3,151,660 | +60.4% | 990,225 | 3.18 |
| 2025-02-28 | 1,964,465 | +17.3% | 1,633,620 | 1.20 |
| 2025-02-14 | 1,674,146 | -10.4% | 526,530 | 3.18 |
| 2025-01-31 | 1,868,416 | +23.7% | 474,084 | 3.94 |
| 2025-01-15 | 1,510,912 | +11.8% | 331,333 | 4.56 |
| 2024-12-31 | 1,351,039 | +0.0% | 356,157 | 3.79 |
| 2024-12-13 | 1,350,521 | -21.7% | 396,653 | 3.40 |
| 2024-11-29 | 1,724,607 | +8.1% | 402,721 | 4.28 |
| 2024-11-15 | 1,595,731 | -4.8% | 525,450 | 3.04 |
| 2024-10-31 | 1,677,097 | -32.6% | 340,882 | 4.92 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of AMPL volume is 50.8%, up 5.9 points over the last five sessions. Over the last 30 readings it ranged from 28.8% (6 October 2026) to 72.2% (28 October 2026). The latest reading is in line with the 30-session average of 50.0%, on 763K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 388K | 763K | 50.8% | 337 |
| 2026-10-30 | 301K | 666K | 45.2% | 4 |
| 2026-10-29 | 278K | 588K | 47.3% | 550 |
| 2026-10-28 | 406K | 563K | 72.2% | 8,578 |
| 2026-10-27 | 165K | 335K | 49.5% | 0 |
| 2026-10-26 | 171K | 381K | 44.9% | 0 |
| 2026-10-23 | 587K | 873K | 67.3% | 97,743 |
| 2026-10-22 | 410K | 765K | 53.5% | 0 |
| 2026-10-21 | 301K | 596K | 50.6% | 0 |
| 2026-10-20 | 249K | 527K | 47.2% | 0 |
| 2026-10-19 | 182K | 346K | 52.6% | 0 |
| 2026-10-16 | 219K | 451K | 48.6% | 59 |
| 2026-10-15 | 184K | 378K | 48.7% | 534 |
| 2026-10-14 | 262K | 418K | 62.8% | 215 |
| 2026-10-13 | 173K | 329K | 52.6% | 0 |
| 2026-10-12 | 300K | 689K | 43.5% | 9 |
| 2026-10-09 | 305K | 722K | 42.3% | 9 |
| 2026-10-08 | 320K | 665K | 48.2% | 0 |
| 2026-10-07 | 266K | 640K | 41.6% | 1 |
| 2026-10-06 | 372K | 1.3M | 28.8% | 0 |
| 2026-10-05 | 258K | 867K | 29.7% | 0 |
| 2026-10-02 | 355K | 653K | 54.3% | 50,816 |
| 2026-10-01 | 245K | 561K | 43.7% | 2,589 |
| 2026-09-30 | 269K | 672K | 40.1% | 1,390 |
| 2026-09-29 | 267K | 445K | 60.1% | 819 |
| 2026-09-28 | 170K | 352K | 48.3% | 3,660 |
| 2026-09-25 | 187K | 402K | 46.4% | 1,204 |
| 2026-09-24 | 406K | 661K | 61.5% | 7,132 |
| 2026-09-23 | 335K | 538K | 62.3% | 0 |
| 2026-09-22 | 251K | 460K | 54.5% | 10 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 1 October 2026, the fails-to-deliver balance in AMPL is 819 shares, down 100 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (18 March 2026) to 69,208 shares (2 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-01 | 819 | $13.85 | $11K |
| 2026-09-16 | 919 | $13.37 | $12K |
| 2026-09-15 | 9,842 | $13.65 | $134K |
| 2026-09-02 | 888 | $13.83 | $12K |
| 2026-08-07 | 651 | $10.77 | $7K |
| 2026-07-28 | 2,182 | $8.67 | $19K |
| 2026-07-22 | 2,208 | $9.59 | $21K |
| 2026-07-17 | 500 | $9.65 | $5K |
| 2026-07-16 | 2,615 | $9.64 | $25K |
| 2026-07-13 | 363 | $9.18 | $3K |
| 2026-07-02 | 69,208 | $8.55 | $592K |
| 2026-07-01 | 190 | $7.65 | $1K |
| 2026-06-26 | 1,173 | $6.76 | $8K |
| 2026-06-25 | 4,360 | $6.83 | $30K |
| 2026-06-24 | 2,142 | $6.66 | $14K |
| 2026-06-18 | 752 | $6.53 | $5K |
| 2026-06-15 | 154 | $6.89 | $1K |
| 2026-06-10 | 29,332 | $6.96 | $204K |
| 2026-06-09 | 879 | $7.17 | $6K |
| 2026-06-08 | 19,058 | $7.66 | $146K |
| 2026-06-04 | 192 | $8.11 | $2K |
| 2026-06-02 | 39,502 | $8.78 | $347K |
| 2026-06-01 | 728 | $7.82 | $6K |
| 2026-04-24 | 40 | $6.71 | $268 |
| 2026-04-21 | 1,738 | $7.08 | $12K |
| 2026-03-31 | 2,070 | $6.80 | $14K |
| 2026-03-24 | 3,916 | $7.21 | $28K |
| 2026-03-18 | 4 | $7.15 | $29 |
| 2026-03-16 | 8,591 | $7.35 | $63K |
| 2026-03-10 | 75 | $7.80 | $585 |
Insider trades
SEC Form 4, newest first. JSONInsiders at AMPL reported 9 open-market sells worth $9.3M in the last 90 days and no open-market buys. Latest filing: Skates Spenser (CEO and President) on 2026-10-28.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-28 | Skates Spenser | CEO and President | Sell | 7K | $17.53 | $117K | 0 |
| 2026-10-28 | Skates Spenser | CEO and President | Conversion | 7K | $0.00 | $0 | 7K |
| 2026-10-26 | Skates Spenser | CEO and President | Sell | 200 | $17.47 | $3K | 0 |
| 2026-10-26 | Skates Spenser | CEO and President | Sell | 100 | $17.45 | $2K | 200 |
| 2026-10-26 | Skates Spenser | CEO and President | Conversion | 300 | $0.00 | $0 | 300 |
| 2026-10-23 | Skates Spenser | CEO and President | Sell | 107K | $17.52 | $1.9M | 0 |
| 2026-10-23 | Skates Spenser | CEO and President | Conversion | 107K | $0.00 | $0 | 107K |
| 2026-10-15 | Raji Vijaye Ganesh | Director | Grant | 38K | $0.00 | $0 | 38K |
| 2026-10-05 | Tzuo Tien | Director | Grant | 818 | $0.00 | $0 | 102K |
| 2026-10-05 | Schultz Erica | Director | Grant | 892 | $0.00 | $0 | 144K |
| 2026-10-02 | Skates Spenser | CEO and President | Sell | 70K | $14.52 | $1.0M | 0 |
| 2026-10-02 | Skates Spenser | CEO and President | Conversion | 70K | $0.00 | $0 | 70K |
| 2026-10-01 | Skates Spenser | CEO and President | Sell | 4K | $14.45 | $51K | 0 |
| 2026-10-01 | Skates Spenser | CEO and President | Conversion | 4K | $0.00 | $0 | 4K |
| 2026-09-30 | Skates Spenser | CEO and President | Sell | 1K | $14.45 | $20K | 0 |
| 2026-09-30 | Skates Spenser | CEO and President | Conversion | 1K | $0.00 | $0 | 1K |
| 2026-09-10 | Skates Spenser | CEO and President | Sell | 185K | $12.30 | $2.3M | 0 |
| 2026-09-10 | Skates Spenser | CEO and President | Conversion | 185K | $0.00 | $0 | 185K |
| 2026-09-04 | Crook Nathaniel Glenn | Chief Commercial Officer | Sell | 300K | $12.99 | $3.9M | 1.6M |
| 2026-08-17 | Liu Curtis | Chief Technology Officer | Tax withholding | 54K | $13.03 | $702K | 950K |
| 2026-08-17 | Skates Spenser | CEO and President | Tax withholding | 52K | $13.03 | $682K | 1.2M |
| 2026-08-17 | Crook Nathaniel Glenn | Chief Commercial Officer | Tax withholding | 109K | $13.03 | $1.4M | 1.9M |
| 2026-08-17 | Casey Andrew | Chief Financial Officer | Tax withholding | 73K | $13.03 | $949K | 1.4M |
| 2026-07-05 | Tzuo Tien | Director | Grant | 2K | $0.00 | $0 | 102K |
| 2026-07-05 | Schultz Erica | Director | Grant | 2K | $0.00 | $0 | 143K |
| 2026-06-12 | Wong Catherine | Director | Sell | 7K | $6.79 | $51K | 111K |
| 2026-06-09 | Wong Catherine | Director | Grant | 25K | $0.00 | $0 | 119K |
| 2026-06-09 | Grady Patrick W | Director, 10% owner | Grant | 25K | $0.00 | $0 | 86K |
| 2026-06-09 | Schultz Erica | Director | Grant | 25K | $0.00 | $0 | 141K |
| 2026-06-09 | Gill Ronald S | Director | Grant | 25K | $0.00 | $0 | 100K |
| 2026-06-09 | Whitehurst James M | Director | Grant | 25K | $0.00 | $0 | 187K |
| 2026-06-01 | Liu Curtis | Chief Technology Officer | Sell | 23K | $8.03 | $183K | 1.0M |
| 2026-06-01 | Liu Curtis | Chief Technology Officer | Sell | 22K | $8.03 | $178K | 1.0M |
| 2026-05-15 | Crook Nathaniel Glenn | Chief Commercial Officer | Tax withholding | 101K | $6.06 | $614K | 2.0M |
| 2026-05-15 | Casey Andrew | Chief Financial Officer | Tax withholding | 65K | $6.06 | $393K | 1.4M |
| 2026-05-15 | Liu Curtis | Chief Technology Officer | Tax withholding | 40K | $6.06 | $244K | 1.0M |
| 2026-05-15 | Skates Spenser | CEO and President | Tax withholding | 40K | $6.06 | $240K | 1.3M |
| 2026-05-04 | Liu Curtis | Chief Technology Officer | Sell | 18K | $8.12 | $143K | 1.1M |
| 2026-04-21 | Skates Spenser | CEO and President | Grant | 1.3M | $0.00 | $0 | 1.3M |
| 2026-04-15 | Crook Nathaniel Glenn | Chief Commercial Officer | Grant | 975K | $0.00 | $0 | 2.1M |
| 2026-04-15 | Crook Nathaniel Glenn | Chief Commercial Officer | Grant | 279K | $0.00 | $0 | 1.2M |
| 2026-04-15 | Casey Andrew | Chief Financial Officer | Grant | 432K | $0.00 | $0 | 1.5M |
| 2026-04-15 | Liu Curtis | Chief Technology Officer | Grant | 418K | $0.00 | $0 | 1.1M |
| 2026-04-05 | Tzuo Tien | Director | Grant | 2K | $0.00 | $0 | 100K |
| 2026-04-05 | Schultz Erica | Director | Grant | 2K | $0.00 | $0 | 117K |
| 2026-03-06 | Liu Curtis | Chief Technology Officer | Sell | 33K | $8.01 | $266K | 604K |
| 2026-03-05 | Liu Curtis | Chief Technology Officer | Sell | 30K | $8.00 | $241K | 637K |
| 2026-02-15 | Casey Andrew | Chief Financial Officer | Tax withholding | 39K | $6.34 | $250K | 1.1M |
| 2026-02-15 | Liu Curtis | Chief Technology Officer | Tax withholding | 27K | $6.34 | $169K | 730K |
| 2026-02-15 | HANSEN THOMAS NEERGAARD | President | Tax withholding | 69K | $6.34 | $438K | 1.8M |
| 2026-01-05 | Tzuo Tien | Director | Grant | 999 | $0.00 | $0 | 99K |
| 2025-12-26 | Skates Spenser | Chief Executive Officer | Sell | 100 | $12.00 | $1K | 0 |
| 2025-12-26 | Skates Spenser | Chief Executive Officer | Conversion | 100 | $0.00 | $0 | 100 |
| 2025-12-24 | Skates Spenser | Chief Executive Officer | Sell | 43K | $12.01 | $513K | 0 |
| 2025-12-24 | Skates Spenser | Chief Executive Officer | Conversion | 43K | $0.00 | $0 | 43K |
| 2025-12-15 | Schultz Erica | Director | Sell | 10K | $10.88 | $109K | 115K |
| 2025-12-15 | Schultz Erica | Director | Exercise or conversion | 10K | $4.19 | $42K | 125K |
| 2025-11-17 | Schultz Erica | Director | Sell | 10K | $10.23 | $102K | 107K |
| 2025-11-17 | Schultz Erica | Director | Exercise or conversion | 10K | $4.19 | $42K | 117K |
| 2025-11-15 | Casey Andrew | Chief Financial Officer | Tax withholding | 54K | $10.73 | $584K | 1.1M |
| 2025-11-15 | Liu Curtis | Chief Technology Officer | Tax withholding | 36K | $10.73 | $387K | 757K |
| 2025-11-15 | HANSEN THOMAS NEERGAARD | President | Tax withholding | 92K | $10.73 | $983K | 1.9M |
| 2025-11-11 | Skates Spenser | Chief Executive Officer | Sell | 400K | $10.99 | $4.4M | 0 |
| 2025-11-11 | Skates Spenser | Chief Executive Officer | Conversion | 400K | $0.00 | $0 | 400K |
| 2025-11-07 | Casey Andrew | Chief Financial Officer | Buy | 30K | $9.99 | $300K | 1.2M |
| 2025-10-15 | Schultz Erica | Director | Sell | 10K | $10.12 | $101K | 107K |
| 2025-10-15 | Schultz Erica | Director | Exercise or conversion | 10K | $4.19 | $42K | 117K |
| 2025-10-05 | Tzuo Tien | Director | Grant | 977 | $0.00 | $0 | 98K |
| 2025-09-15 | Schultz Erica | Director | Sell | 10K | $11.06 | $111K | 107K |
| 2025-09-15 | Schultz Erica | Director | Exercise or conversion | 10K | $4.19 | $42K | 117K |
| 2025-08-15 | HANSEN THOMAS NEERGAARD | President | Tax withholding | 96K | $11.47 | $1.1M | 2.0M |
| 2025-08-15 | Casey Andrew | Chief Financial Officer | Tax withholding | 54K | $11.47 | $624K | 1.1M |
| 2025-08-15 | Liu Curtis | Chief Technology Officer | Tax withholding | 34K | $11.47 | $393K | 793K |
| 2025-08-15 | Schultz Erica | Director | Sell | 8K | $11.46 | $86K | 107K |
| 2025-08-15 | Schultz Erica | Director | Exercise or conversion | 8K | $4.19 | $31K | 115K |
| 2025-07-15 | Schultz Erica | Director | Sell | 8K | $12.56 | $94K | 107K |
| 2025-07-15 | Schultz Erica | Director | Exercise or conversion | 8K | $4.19 | $31K | 115K |
| 2025-07-05 | Tzuo Tien | Director | Grant | 894 | $0.00 | $0 | 97K |
| 2025-06-12 | Vishria Eric | Director | Grant | 15K | $0.00 | $0 | 65K |
| 2025-06-12 | Gill Ronald S | Director | Grant | 15K | $0.00 | $0 | 75K |
| 2025-06-12 | Whitehurst James M | Director | Grant | 15K | $0.00 | $0 | 162K |
| 2025-06-12 | Schultz Erica | Director | Grant | 15K | $0.00 | $0 | 107K |
| 2025-06-12 | Wong Catherine | Director | Grant | 15K | $0.00 | $0 | 94K |
| 2025-06-12 | Grady Patrick W | Director, 10% owner | Grant | 15K | $0.00 | $0 | 61K |
| 2025-06-11 | Schultz Erica | Director | Sell | 26K | $12.49 | $330K | 93K |
| 2025-06-11 | Wong Catherine | Director | Sell | 9K | $12.49 | $106K | 79K |
| 2025-06-11 | Schultz Erica | Director | Exercise or conversion | 8K | $4.19 | $31K | 100K |
| 2025-05-19 | Wong Catherine | Director | Sell | 4K | $11.75 | $41K | 88K |
| 2025-05-15 | Casey Andrew | Chief Financial Officer | Tax withholding | 54K | $12.14 | $660K | 1.2M |
| 2025-05-15 | HANSEN THOMAS NEERGAARD | President | Tax withholding | 96K | $12.14 | $1.2M | 2.1M |
| 2025-05-15 | Liu Curtis | Chief Technology Officer | Tax withholding | 26K | $12.14 | $310K | 827K |
| 2025-05-12 | Vishria Eric | Director | Other transaction | 1.7M | $0.00 | $0 | 0 |
| 2025-05-12 | Vishria Eric | Director | Conversion | 1.7M | $0.00 | $0 | 1.7M |
| 2025-05-12 | Vishria Eric | Director | Other transaction | 78K | $0.00 | $0 | 340K |
| 2025-05-12 | Vishria Eric | Director | Sell | 10K | $12.00 | $120K | 330K |
| 2025-05-08 | Vishria Eric | Director | Sell | 25K | $10.15 | $254K | 262K |
| 2025-04-25 | Liu Curtis | Chief Technology Officer | Grant | 853K | $0.00 | $0 | 853K |
| 2025-04-25 | Casey Andrew | Chief Financial Officer | Grant | 160K | $0.00 | $0 | 1.2M |
| 2025-04-25 | HANSEN THOMAS NEERGAARD | President | Grant | 565K | $0.00 | $0 | 2.2M |
| 2025-04-05 | Tzuo Tien | Director | Grant | 398 | $0.00 | $0 | 96K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON18 Form 144 notices on file for AMPL worth $16.1M at the prices reported; 8 in the last 90 days worth $9.4M. Latest: Skates Spenser filed on 2026-10-28 to sell 16,499 shares ($288K) from 2026-10-28.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-10-28 | Skates SpenserMember of immediate family of any of the foregoing | 16K | $288K | 0.016% | 2026-10-28 | Fidelity Brokerage Services LLC |
| 2026-10-26 | Skates SpenserMember of immediate family of any of the foregoing | 300 | $5K | 0.000% | 2026-10-26 | Fidelity Brokerage Services LLC |
| 2026-10-23 | Skates SpenserMember of immediate family of any of the foregoing | 107K | $1.9M | 0.106% | 2026-10-23 | Fidelity Brokerage Services LLC |
| 2026-10-02 | Skates SpenserMember of immediate family of any of the foregoing | 70K | $1.0M | 0.069% | 2026-10-02 | Fidelity Brokerage Services LLC |
| 2026-10-01 | Skates SpenserMember of immediate family of any of the foregoing | 4K | $51K | 0.003% | 2026-10-01 | Fidelity Brokerage Services LLC |
| 2026-09-30 | Skates SpenserMember of immediate family of any of the foregoing | 1K | $20K | 0.001% | 2026-09-30 | Fidelity Brokerage Services LLC |
| 2026-09-10 | Skates SpenserMember of immediate family of any of the foregoing | 185K | $2.3M | 0.183% | 2026-09-10 | Fidelity Brokerage Services LLC |
| 2026-09-04 | Crook Nathaniel GlennOfficer | 300K | $3.9M | 0.296% | 2026-09-04 | Fidelity Brokerage Services LLC |
| 2026-06-12 | Liu CurtisOfficer, Director, 10% Stockholder | 23K | $178K | 0.022% | 2026-06-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-12 | CATHERINE JEN WONGOfficer | 7K | $51K | 0.007% | 2026-06-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-01 | CURTIS LIUDirector, Officer, 10% Stockholder | 22K | $174K | 0.021% | 2026-06-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-05 | CURTIS LIUDirector, Officer, 10% Stockholder | 81K | $624K | 0.078% | 2026-03-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-29 | ANNE LEE SKATESDirector, Officer, 10% Stockholder | 75K | $871K | 0.072% | 2025-12-24 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-15 | ERICA SCHULTZDirector | 10K | $113K | 0.010% | 2025-12-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-17 | ERICA SCHULTZDirector | 10K | $107K | 0.010% | 2025-11-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-12 | ANNE LEE SKATESDirector, Officer, 10% Stockholder | 400K | $4.3M | 0.386% | 2025-11-11 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-15 | ERICA SCHULTZDirector | 10K | $102K | 0.010% | 2025-10-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-09-15 | ERICA SCHULTZDirector | 10K | $111K | 0.010% | 2025-09-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON8 holders report 5% or more of AMPL in their latest filing, all on Schedule 13G (passive). The largest reported stake is Wellington Management Group LLP at 10.7% of the class (11,154,556 shares), filed 2026-04-07 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-06 | 13G | Abigail P. Johnsonindividual | 6.0M | 5.8% | 2026-06-30 |
| 2026-08-06 | 13G | FMR LLCparent holding company | 6.0M | 5.8% | 2026-06-30 |
| 2026-07-27 | 13G/Ano. 1 | BlackRock, Inc.parent holding company | 7.9M | 7.6% | 2026-06-30 |
| 2026-05-18 | 13G/Ano. 1 | AllianceBernstein L.P.investment adviser | 318K | 0.3% | 2026-03-31 |
| 2026-04-28 | 13G | Vanguard Portfolio Managementinvestment adviser | 6.3M | 6.0% | 2026-03-31 |
| 2026-04-07 | 13G | Wellington Management Group LLPparent holding company | 11.2M | 10.7% | 2026-03-31 |
| 2026-04-07 | 13G | Wellington Group Holdings LLPparent holding company | 11.2M | 10.7% | 2026-03-31 |
| 2026-04-07 | 13G | Wellington Investment Advisors Holdings LLPparent holding company | 11.2M | 10.7% | 2026-03-31 |
| 2026-04-07 | 13G | Wellington Management Company LLPinvestment adviser | 11.2M | 8.8% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 4 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-17 | 13G/Ano. 4 | T. Rowe Price Investment Management, Inc.investment adviser | 441 | 0.0% | 2025-12-31 |
13F holders
Tracked managers holding AMPL at their latest 13F. JSON6 of the 30 tracked managers held AMPL at their latest 13F, $35.2M in total at quarter-end prices. AQR Capital Management is the largest at $11.5M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 1.5M | $11.5M | 0.00% | +273K |
| Point72 Asset Management | 2026-06-30 | 1.4M | $10.8M | 0.01% | -1.0M |
| Citadel Advisors | 2026-06-30 | 873K | $6.7M | 0.00% | +837K |
| Two Sigma Investments | 2026-06-30 | 416K | $3.2M | 0.00% | -275K |
| Millennium Management | 2026-06-30 | 384K | $2.9M | 0.00% | -1.6M |
| D. E. Shaw & Co. | 2026-06-30 | 12K | $91K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Amplitude reported revenue of $100.9M, up 21.2% from the same quarter a year earlier, and net loss of $34.6M (-0.27 diluted EPS). In FY 2025 it generated $29.8M of operating cash flow and spent $30.7M on buybacks.
- Cash
- $73.8M
- Equity
- $136.2M
- Total assets
- $356.6M
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $100.9M | -$34.6M | -34.3% | -0.27 |
| Q1 FY 2026 | 2026-03-31 | $93.5M | -$23.3M | -24.9% | -0.17 |
| Q4 FY 2025derived | 2025-12-31 | $91.4M | -$17.7M | -19.3% | n/a |
| Q3 FY 2025 | 2025-09-30 | $88.6M | -$24.0M | -27.1% | -0.18 |
| Q2 FY 2025 | 2025-06-30 | $83.3M | -$24.7M | -29.6% | -0.19 |
| Q1 FY 2025 | 2025-03-31 | $80.0M | -$22.2M | -27.8% | -0.17 |
| Q4 FY 2024derived | 2024-12-31 | $78.1M | -$32.6M | -41.7% | n/a |
| Q3 FY 2024 | 2024-09-30 | $75.2M | -$16.9M | -22.4% | -0.14 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $343.2M | -$88.5M | $29.8M | $1.6M | $30.7M | n/a |
| FY 2024 | 2024-12-31 | $299.3M | -$94.3M | $18.5M | $1.7M | $0 | n/a |
| FY 2023 | 2023-12-31 | $276.3M | -$90.4M | $25.6M | $1.3M | $648K | n/a |
| FY 2022 | 2022-12-31 | $238.1M | -$93.4M | -$5.4M | $3.6M | n/a | n/a |
| FY 2021 | 2021-12-31 | $167.3M | -$75.0M | -$31.7M | $1.5M | n/a | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30.
What this page is
Amplitude in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Amplitude (AMPL), SEC CIK 1866692, listed on Nasdaq, classified by the SEC as services-prepackaged software. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-01.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-10-28.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-06.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-28.JSON and CSV
- Company record
- EDGAR filing index for CIK 1866692Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of AMPL is sold short?
7,354,191 shares were held short at the 2026-10-15 settlement, 4.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is AMPL's daily short volume?
On 2026-11-02, 388,133 of the 763,280 AMPL shares reported to FINRA were sold short, 50.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does AMPL have fails to deliver?
The SEC's latest file shows 819 AMPL shares failed to deliver at settlement 2026-10-01. Fails are reported per settlement date and published twice a month with a lag.
Are AMPL insiders buying or selling?
Insiders at AMPL reported 9 open-market sells worth $9.3M in the last 90 days and no open-market buys. Latest filing: Skates Spenser (CEO and President) on 2026-10-28.
Have AMPL insiders filed to sell?
18 Form 144 notices on file for AMPL worth $16.1M at the prices reported; 8 in the last 90 days worth $9.4M. Latest: Skates Spenser filed on 2026-10-28 to sell 16,499 shares ($288K) from 2026-10-28.
Who owns 5% or more of AMPL?
8 holders report 5% or more of AMPL in their latest filing, all on Schedule 13G (passive). The largest reported stake is Wellington Management Group LLP at 10.7% of the class (11,154,556 shares), filed 2026-04-07 for an event on 2026-03-31.
What did AMPL report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Amplitude reported revenue of $100.9M, up 21.2% from the same quarter a year earlier, and net loss of $34.6M (-0.27 diluted EPS). In FY 2025 it generated $29.8M of operating cash flow and spent $30.7M on buybacks.
Which tracked 13F managers own AMPL?
6 of the 30 tracked 13F managers held AMPL shares at their latest filing, $35.2M in all. The largest: Cliff Asness's AQR Capital Management (1.5M shares, $11.5M), Steve Cohen's Point72 Asset Management (1.4M shares, $10.8M), Ken Griffin's Citadel Advisors (873K shares, $6.7M), Two Sigma Investments (416K shares, $3.2M), Izzy Englander's Millennium Management (384K shares, $2.9M), D. E. Shaw & Co. (12K shares, $91K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.