MarketPeel
Insider Trading Intelligence
CL

Curtis Liu

AMPL
CHIEF TECHNOLOGY OFFICER · AMPLITUDE, INC. · CIK 0001883022
FILING MIX · LIFETIME36%/64%
BUYS
14
SELLS
25
TOTAL VALUE
$18.28M
COMPANIES
1
ACTIVE SINCE
Jun 2021
HOLDINGS NOW
1,004,779
AVG SELL PX
$30.00
TRADE KIND
SHOWING 39 / 39
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 10 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Curtis Liu, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d5+100.00%-8.51%-0.21%-8.30%-4.51%
14d5+100.00%-11.51%-0.67%-10.84%-8.74%
30d5+40.00%+9.94%+1.40%+8.72%+9.16%
60d5+0.00%+10.90%+5.68%+5.22%+6.22%
90d5(1 pending)+0.00%+6.81%+10.43%-4.31%-4.31%
180d5(3 pending)+100.00%-67.34%+5.81%-73.15%-73.15%
1y5(3 pending)+100.00%-70.38%-13.27%-57.11%-57.11%
2y5(3 pending)+100.00%-78.98%+1.88%-80.86%-80.86%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
AMPL · 1,004,779 shares · as of Jun 1, 2026
01,985,1323,970,2635,955,3957,940,52620222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 14 buys / 25 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AMPL
AMPLITUDE, INC.
SALE10b5-1
10b5-1 plan
22,201$8.03$178.2K1,004,779Jun 1, 2026Jun 3, 2026View →
AMPL
AMPLITUDE, INC.
SALE10b5-1
10b5-1 plan
22,786$8.03$182.9K1,004,194Jun 1, 2026Jun 16, 2026View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
40,279$6.06$244.1K1,026,980May 15, 2026May 19, 2026View →
AMPL
AMPLITUDE, INC.
SALE10b5-1
10b5-1 plan
17,586$8.12$142.9K1,067,259May 4, 2026May 6, 2026View →
AMPL
AMPLITUDE, INC.
PURCHASEGRANT
Stock grant
417,8271,084,845Apr 15, 2026Apr 17, 2026View →
AMPL
AMPLITUDE, INC.
SALE10b5-1
10b5-1 plan
33,201$8.01$265.8K603,756Mar 6, 2026Mar 10, 2026View →
AMPL
AMPLITUDE, INC.
SALE10b5-1
10b5-1 plan
30,061$8.00$240.5K636,957Mar 5, 2026Mar 9, 2026View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
26,672$6.34$169.1K730,280Feb 15, 2026Feb 17, 2026View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
36,092$10.73$387.3K756,952Nov 15, 2025Nov 18, 2025View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
34,301$11.47$393.4K793,044Aug 15, 2025Aug 19, 2025View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
25,533$12.14$310.0K827,345May 15, 2025May 15, 2025View →
AMPL
AMPLITUDE, INC.
PURCHASEGRANT
Stock grant
852,878852,878Apr 25, 2025Apr 29, 2025View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,866$4.19$100.0K23,866Feb 1, 2024Feb 5, 2024View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,86612,199Feb 1, 2024Feb 5, 2024View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,8660Feb 1, 2024Feb 5, 2024View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,8660Feb 1, 2024Feb 5, 2024View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,866$4.19$100.0K23,866Feb 1, 2023Feb 3, 2023View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,86636,065Feb 1, 2023Feb 3, 2023View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,8660Feb 1, 2023Feb 3, 2023View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,8660Feb 1, 2023Feb 3, 2023View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
70,0007,334,476Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,86659,931Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,8660Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
70,00079,228Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
70,000$4.19$293.3K149,228Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
70,000515,515Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,866$4.19$100.0K23,866Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,8660Feb 17, 2022Feb 23, 2022View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
142,000$50.91$7.23M79,228Sep 28, 2021Sep 30, 2021View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
158,772$50.00$7.94M221,228Sep 28, 2021Sep 30, 2021View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
380,000380,000Sep 21, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
380,0007,240,610Sep 21, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
155,084117,768Aug 30, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
155,0847,620,610Aug 30, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
SALEGRANT
Gift
475,0007,465,526Jun 28, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
105,000272,852Jun 24, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
23,8667,940,526Jun 24, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
SALE
Chief Technology Officer
23,86683,797Jun 24, 2021Sep 23, 2021View →
AMPL
AMPLITUDE, INC.
PURCHASE
Chief Technology Officer
105,0007,916,660Jun 24, 2021Sep 23, 2021View →
Other insiders · AMPL
Loading peer insiders…
About this filer
CIK 0001883022
ROLE
Chief Technology Officer
PRIMARY
AMPL
COMPANIES
1
ACTIVE SINCE
Jun 2021
MARKETPEEL · /INSIDER/0001883022DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback