Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 6,651
- Price
- $17.53
- Value
- $116,564
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•60 filings
AMPL
Amplitude, Inc.
Net sales of $9.3M over the last 3 months
2 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found 1 CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
−$9,260,804
0 buyers · 2 sellers
12-month purchases
$299,790
1 distinct insiders
12-month sales
$15,213,945
4 distinct insiders
Highlighted alerts
1
21 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
1 executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
93
Raw transactions
Everything returned by the filing
22
Voluntary view
P/S trades after deterministic checks
51
Administrative noise
Stored, never alerted
52
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 7,453
- Price
- $6.79
- Footnotes
- 3
Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 11, 2025. This transaction was executed in multiple trades in prices ranging from $6.5800 to $6.9400, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Includes 24,857 RSUs.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding. The trade is reported under a Rule 10b5-1 plan.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 200
- Price
- $17.47
- Value
- $3,494
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 100
- Price
- $17.45
- Value
- $1,745
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 107,136
- Price
- $17.52
- Value
- $1,876,958
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 70,087
- Price
- $14.52
- Value
- $1,017,684
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 3,539
- Price
- $14.45
- Value
- $51,139
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 1,374
- Price
- $14.45
- Value
- $19,858
Skates Spenser
CEO and President
Sale 10b5-1
- Shares
- 185,000
- Price
- $12.30
- Value
- $2,275,611
Crook Nathaniel Glenn
Chief Commercial Officer
Sale 10b5-1
- Shares
- 300,000
- Price
- $12.99
- Value
- $3,897,750
Liu Curtis
Chief Technology Officer
Sale 10b5-1
- Shares
- 22,786
- Price
- $8.03
- Value
- $182,878
Liu Curtis
Chief Technology Officer
Sale 10b5-1
- Shares
- 17,586
- Price
- $8.12
- Value
- $142,877
Liu Curtis
Chief Technology Officer
Sale 10b5-1
- Shares
- 33,201
- Price
- $8.01
- Value
- $265,840
Liu Curtis
Chief Technology Officer
Sale 10b5-1
- Shares
- 30,061
- Price
- $8.00
- Value
- $240,539
Skates Spenser
Chief Executive Officer
Sale 10b5-1
- Shares
- 100
- Price
- $12.00
- Value
- $1,200
Skates Spenser
Chief Executive Officer
Sale 10b5-1
- Shares
- 42,743
- Price
- $12.01
- Value
- $513,433
Schultz Erica
Director
Sale 10b5-1
- Shares
- 10,000
- Price
- $10.88
- Value
- $108,758
Schultz Erica
Director
Sale 10b5-1
- Shares
- 10,000
- Price
- $10.23
- Value
- $102,295
Skates Spenser
Chief Executive Officer
Sale 10b5-1
- Shares
- 400,000
- Price
- $10.99
- Value
- $4,395,320
Casey Andrew
Chief Financial Officer
PurchaseAlert
- Shares
- 30,000
- Price
- $9.99
- Value
- $299,790
Schultz Erica
Director
Sale 10b5-1
- Shares
- 10,000
- Price
- $10.12
- Value
- $101,229
Schultz Erica
Director
Sale 10b5-1
- Shares
- 10,000
- Price
- $11.06
- Value
- $110,633
Schultz Erica
Director
Sale 10b5-1
- Shares
- 7,500
- Price
- $11.46
- Value
- $85,968
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Oct 28, 2026 | Skates Spenser CEO and President | Sale | 6,651 | $17.53 | $116,564 | |
| Oct 26, 2026 | Skates Spenser CEO and President | Sale | 200 | $17.47 | $3,494 | |
| Oct 26, 2026 | Skates Spenser CEO and President | Sale | 100 | $17.45 | $1,745 | |
| Oct 23, 2026 | Skates Spenser CEO and President | Sale | 107,136 | $17.52 | $1,876,958 | |
| Oct 02, 2026 | Skates Spenser CEO and President | Sale | 70,087 | $14.52 | $1,017,684 | |
| Oct 01, 2026 | Skates Spenser CEO and President | Sale | 3,539 | $14.45 | $51,139 | |
| Sep 30, 2026 | Skates Spenser CEO and President | Sale | 1,374 | $14.45 | $19,858 | |
| Sep 10, 2026 | Skates Spenser CEO and President | Sale | 185,000 | $12.30 | $2,275,611 | |
| Sep 04, 2026 | Crook Nathaniel Glenn Chief Commercial Officer | Sale | 300,000 | $12.99 | $3,897,750 | |
| Jun 01, 2026 | Liu Curtis Chief Technology Officer | Sale | 22,786 | $8.03 | $182,878 | |
| May 04, 2026 | Liu Curtis Chief Technology Officer | Sale | 17,586 | $8.12 | $142,877 | |
| Mar 06, 2026 | Liu Curtis Chief Technology Officer | Sale | 33,201 | $8.01 | $265,840 | |
| Mar 05, 2026 | Liu Curtis Chief Technology Officer | Sale | 30,061 | $8.00 | $240,539 | |
| Dec 26, 2025 | Skates Spenser Chief Executive Officer | Sale | 100 | $12.00 | $1,200 | |
| Dec 24, 2025 | Skates Spenser Chief Executive Officer | Sale | 42,743 | $12.01 | $513,433 | |
| Dec 15, 2025 | Schultz Erica Director | Sale | 10,000 | $10.88 | $108,758 | |
| Nov 17, 2025 | Schultz Erica Director | Sale | 10,000 | $10.23 | $102,295 | |
| Nov 11, 2025 | Skates Spenser Chief Executive Officer | Sale | 400,000 | $10.99 | $4,395,320 | |
| Nov 07, 2025 | Casey Andrew Chief Financial Officer | Purchase | 30,000 | $9.99 | $299,790 | |
| Oct 15, 2025 | Schultz Erica Director | Sale | 10,000 | $10.12 | $101,229 | |
| Sep 15, 2025 | Schultz Erica Director | Sale | 10,000 | $11.06 | $110,633 | |
| Aug 15, 2025 | Schultz Erica Director | Sale | 7,500 | $11.46 | $85,968 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.