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AMPL · Amplitude, Inc.
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AMPL Amplitude (AMPL) Insider Trading, Ownership & Congress Trades

Software & IT · Services-prepackaged software · CIK 0001866692
Form 144 · 7
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
117
13F, latest reported quarter
Conversions, 180 days
5
Codes C/M, not in net · $0 priced

What the filings say about AMPL

Insiders, 180 days
-$7.8M net sold
4 sellers · 60% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$9.1M
7 notices

Amplitude insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, Amplitude, Inc. insiders sold a net $7.8M of stock across 311 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-27.

Insider
Filed
Shares
Value
Since filing
CEO and President
SELL
2026-10-27 SECtraded 2026-10-23
107,136
$1.9M
n/a
Context
  • 10 earlier Form 4 trades (code P or S) here by this insider (10 sales), the last on Oct 2, 2026.
  • No other insider sold within 30 days.
  • 117 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CEO and President Skates Spenser sold about $1.9M of AMPL under a 10b5-1 plan on Oct 23, 2026; 117 funds added in the latest 13F quarter.
CEO and President
SELL
2026-10-06 SECtraded 2026-10-02
70,087
$1.0M
+17.2%
Context
  • 9 earlier Form 4 trades (code P or S) here by this insider (9 sales), the last on Oct 1, 2026.
  • 1 other insider sold within 30 days.
  • 117 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CEO and President Skates Spenser sold about $1.0M of AMPL under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 117 funds added in the latest 13F quarter.
CEO and President
SELL
2026-10-02 SECtraded 2026-10-01
3,539
$51.1K
+16.3%
Context
  • 8 earlier Form 4 trades (code P or S) here by this insider (8 sales), the last on Sep 30, 2026.
  • 1 other insider sold within 30 days.
  • 117 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CEO and President Skates Spenser sold about $51.1K of AMPL under a 10b5-1 plan on Oct 1, 2026; 1 other insider sold within 30 days and 117 funds added in the latest 13F quarter.
CEO and President
SELL
2026-10-02 SECtraded 2026-09-30
1,374
$19.9K
+16.3%
Context
  • 7 earlier Form 4 trades (code P or S) here by this insider (7 sales), the last on Sep 10, 2026.
  • 1 other insider sold within 30 days.
  • 117 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CEO and President Skates Spenser sold about $19.9K of AMPL under a 10b5-1 plan on Sep 30, 2026; 1 other insider sold within 30 days and 117 funds added in the latest 13F quarter.
CEO and President
SELL
2026-09-14 SECtraded 2026-09-10
185,000
$2.3M
+29.4%
Context
  • 6 earlier Form 4 trades (code P or S) here by this insider (6 sales), the last on Dec 26, 2025.
  • 1 other insider sold within 30 days.
  • 117 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CEO and President Skates Spenser sold about $2.3M of AMPL under a 10b5-1 plan on Sep 10, 2026; 1 other insider sold within 30 days and 117 funds added in the latest 13F quarter.
311 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Showing the latest few. to see 306 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$7.8M over 180 days
-$7.3M over 90 days · -$3.9M of it by a 10%+ holder
below 66% of Software & IT
Congress
no House purchase disclosed in the last 12 months
Funds
117 funds bought in last quarter
more than 56% of Software & IT
Revenue
+14.7% year over year
more than 62% of Software & IT
Margin
-25.8% net margin
below 72% of Software & IT
Buybacks
$89.5M repurchased, FY to 2026-06-30
more than 51% of Software & IT
Short interest
7.5% of the float short (float per yahoo 2026-10-26) · 4.5 days to cover · settled 2026-09-30
What changed in the last 30 days
Oct 27CEO and President Skates Spenser sold $3.0M under a 10b5-1 plan (4 trades, Sep 30 to Oct 23)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 23Member of immediate family of any of the foregoing Skates Spenser filed to sell $1.9M by Oct 23 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Oct 2Member of immediate family of any of the foregoing Skates Spenser filed to sell $1.0M by Oct 2 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Oct 1Member of immediate family of any of the foregoing Skates Spenser filed to sell $51.1K by Oct 1 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Sep 30Member of immediate family of any of the foregoing Skates Spenser filed to sell $19.9K by Sep 30 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch AMPL

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The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+75.5%12M
-43%-3%+37%+77%2025-102025-122026-022026-042026-062026-082026-10 2025-11-11 · Skates Spenser sold $4.4M2026-09-04 · Crook Nathaniel Glenn sold $3.9M2026-09-10 · Skates Spenser sold $2.3M2026-10-23 · Skates Spenser sold $1.9M2026-10-02 · Skates Spenser sold $1.0M2025-12-24 · Skates Spenser sold $513.3K2025-11-07 · Casey Andrew bought $299.7K2026-03-06 · Liu Curtis sold $265.9K2026-03-05 · Liu Curtis sold $240.5K2026-06-01 · Liu Curtis sold $183.0K2026-06-01 · Liu Curtis sold $178.3K2026-05-04 · Liu Curtis sold $142.8K2025-12-15 · Schultz Erica sold $108.8K2025-11-17 · Schultz Erica sold $102.3K2026-10-01 · Skates Spenser sold $51.1K2026-06-12 · Wong Catherine sold $50.6K2026-09-30 · Skates Spenser sold $19.9K2025-12-26 · Skates Spenser sold $1.2K2026-10-26 · Skates Spenser filed to sell $5.2K2026-10-23 · Skates Spenser filed to sell $1.9M2026-10-02 · Skates Spenser filed to sell $1.0M2026-10-01 · Skates Spenser filed to sell $51.1K2026-09-30 · Skates Spenser filed to sell $19.9K2026-09-10 · Skates Spenser filed to sell $2.3M2026-09-04 · Crook Nathaniel Glenn filed to sell $3.9M
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns AMPL: institutional holders (13F)

13F holdings, latest reported quarter
10,044,780 sh
$76.8M
5,979,436 sh
$45.7M

Congress trades in AMPL

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

AMPL planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Skates Spenser
Filed 2026-10-26
$5.2K
Skates Spenser
Filed 2026-10-23
$1.9M
Skates Spenser
Filed 2026-10-02
$1.0M
Skates Spenser
Filed 2026-10-01
$51.1K
Skates Spenser
Filed 2026-09-30
$19.9K

AMPL mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Madison Small Cap Fund
$2.4M position · as of 2026-07-31
1.6%
THE HARTFORD SMALL COMPANY FUND
$7.9M position · as of 2026-07-31
1.2%
Meridian Small Cap Growth Fund
$3.0M position · as of 2026-06-30
1.1%
AdvisorShares Insider Advantage ETF
$553.1K position · as of 2026-06-30
1.0%
State Street(R) SPDR(R) S&P(R) Software & Services ETF
$3.3M position · as of 2026-06-30
0.8%
MML VIP Wellington Small Cap Growth Equity Fund
$1.2M position · as of 2026-06-30
0.8%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Executive pay vs shareholder return · Mr. Skates
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2023
$300.0K
$147.5K
$3.4M
-77%
-39%
2022
$450.0K
-$70.4M
$8.0M
-78%
-56%
2021
$450.0K
$102.0M
$771.6K
-3%
-10%
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $7.8M sold by insiders over 180 days, 117 funds added last quarter, $9.1M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Same sector, ranked by filing activity
Sector by SEC SIC code

AMPL financials

Revenue growth
+14.7%
XBRL, annual
Net margin
-25.8%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$374.4M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
-26.6%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$29.4M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
-47.9%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
-24.5%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
fewer than four consecutive quarters of operating income
Return on capital employed
n/a
fewer than four consecutive quarters of operating income
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
n/a
no share count filed
FCF yield
n/a
no share count filed
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$343.2M$299.3M$276.3M$238.1M
Gross profit$253.9M$222.3M$204.4M$167.6M
Net income-$88.5M-$94.3M-$90.4M-$93.4M
EPS (diluted)-0.67-0.76-0.77-0.84
Operating cash flow$29.8M$18.5M$25.6M-$5.4M
Cash$81.1M$171.7M$248.5M$218.5M
Buybacks$30.7M$0$648.0Kn/a
SEC XBRL, fiscal years, as known on 2026-10-27

AMPL Stock Sonar score 5/7 axes

Find similar shapesCompare

AMPL ranks highest on growth (72nd percentile) and institutional and government (56th), and lowest on profitability (25th), among Software & IT peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
25
Inputs
  • Return on equity-47.9% · 20 pct, sector of 286
  • Return on assets-24.5% · 31 pct, sector of 381
  • Return on invested capitalfewer than four consecutive quarters of operating income
  • Return on capital employedfewer than four consecutive quarters of operating income
Growth
72
Inputs
  • Revenue growth, YoY+14.7% · 62 pct, sector of 480
  • Backlog growth, YoY+34.9% · 83 pct, sector of 182
Insider conviction
30
Inputs
  • Net Form 4 buying (codes P and S), 180d-$555K · 60 pct, sector of 285
  • Insider buyers, 180d0 · 0 pct, sector of 290
Institutional and government
56
Inputs
  • Funds adding, latest quarter117 · 56 pct, sector of 415
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
55
Inputs
  • Short interest, % of float+7.5% · 37 pct, sector of 530
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+7.3% · 73 pct, sector of 316
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

AMPL filings, in plain words

Are Amplitude insiders buying or selling AMPL?

In the 180 days to 2026-10-27, Amplitude insiders were net sellers, a net $7.8M across purchases and sales reported on Form 4, by 4 sellers.

Are there planned insider sales of AMPL?

Yes. 7 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-27, covering $9.1M of stock; the latest, by Skates Spenser, was filed 2026-10-26.

Read the full summary

In the 180 days to 2026-10-27, Amplitude insiders were net sellers of AMPL, a net $7.8M across purchases and sales reported on Form 4 by 4 sellers. 60% of the 10 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Insiders filed 7 Form 144 notices of intent to sell in the 90 days to 2026-10-27, covering $9.1M of stock. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.

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