AMPL

insider transactions

Amplitude, Inc. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-601.1K

30.0K buy · 631.1K sell

Net value · 365d

-$6.3M

$299.7K in · $6.6M out

Sentiment · 365d

Net selling

4% buying · 96% selling

Open-market trades · 365d

30.0K buy · 631.1K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Sell·S
Jun 12, 26

Wong Catherine

Director · 10b5-1

$50.6K

7.5K sh · $6.79

Own -6%
Grant·A
Jun 9, 26

Wong Catherine

Director

$0

24.9K sh

Own +26%
Grant·A
Jun 9, 26

Grady Patrick W

Director, 10% Owner

$0

24.9K sh

Own +41%
Grant·A
Jun 9, 26

Schultz Erica

Director

$0

24.9K sh

Own +21%
Grant·A
Jun 9, 26

Gill Ronald S

Director

$0

24.9K sh

Own +33%
Grant·A
Jun 9, 26

Whitehurst James M

Director

$0

24.9K sh

Own +15%
Sell·S
Jun 1, 26

Liu Curtis

Chief Technology Officer · 10b5-1

$178.2K

22.2K sh · $8.03

Own -2%
Sell·S
Jun 1, 26

Liu Curtis

Chief Technology Officer · 10b5-1

$182.9K

22.8K sh · $8.03

Own -2%
Other·F
May 15, 26

Nathaniel Glenn Crook

Chief Commercial Officer

$613.8K

101.3K sh · $6.06

Own -5%
Other·F
May 15, 26

Casey Andrew KEY

Chief Financial Officer

$393.1K

64.9K sh · $6.06

Own -4%
Other·F
May 15, 26

Liu Curtis

Chief Technology Officer

$244.1K

40.3K sh · $6.06

Own -4%
Other·F
May 15, 26

Skates Spenser KEY

CEO and President

$239.7K

39.6K sh · $6.06

Own -3%
Sell·S
May 4, 26

Liu Curtis

Chief Technology Officer · 10b5-1

$142.9K

17.6K sh · $8.12

Own -2%
Grant·A
Apr 21, 26

Skates Spenser KEY

CEO and President

$0

1.3M sh

Own New
Grant·A
Apr 15, 26

Nathaniel Glenn Crook

Chief Commercial Officer

$0

974.9K sh

Own +84%
Grant·A
Apr 15, 26

Nathaniel Glenn Crook

Chief Commercial Officer

$0

278.6K sh

Own +32%
Grant·A
Apr 15, 26

Casey Andrew KEY

Chief Financial Officer

$0

431.8K sh

Own +40%
Grant·A
Apr 15, 26

Liu Curtis

Chief Technology Officer

$0

417.8K sh

Own +63%
Grant·A
Apr 5, 26

Tzuo Tien

Director

$0

1.5K sh

Own +2%
Grant·A
Apr 5, 26

Schultz Erica

Director

$0

1.7K sh

Own +1%
Sell·S
Mar 6, 26

Liu Curtis

Chief Technology Officer · 10b5-1

$265.9K

33.2K sh · $8.01

Own -5%
Sell·S
Mar 5, 26

Liu Curtis

Chief Technology Officer · 10b5-1

$240.5K

30.1K sh · $8.00

Own -5%
Other·F
Feb 15, 26

Liu Curtis

Chief Technology Officer

$169.1K

26.7K sh · $6.34

Own -4%
Other·F
Feb 15, 26

HANSEN THOMAS NEERGAARD KEY

President

$438.4K

69.1K sh · $6.34

Own -4%
Other·F
Feb 15, 26

Casey Andrew KEY

Chief Financial Officer

$250.0K

39.4K sh · $6.34

Own -4%
Grant·A
Jan 5, 26

Tzuo Tien

Director

$0

999 sh

Own +1%
Exercise·C
Dec 26, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

100 sh

Own +0%
Exercise·C
Dec 26, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

100 sh

Own New
Sell·S
Dec 26, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$1.2K

100 sh · $12.00

Own -100%
Exercise·C
Dec 24, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

42.7K sh

Own +8%
Sell·S
Dec 24, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$513.3K

42.7K sh · $12.01

Own -100%
Exercise·C
Dec 24, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

42.7K sh

Own New
Exercise·M
Dec 15, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +25%
Exercise·M
Dec 15, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +9%
Sell·S
Dec 15, 25

Schultz Erica

Director · 10b5-1

$108.8K

10.0K sh · $10.88

Own -8%
Exercise·M
Nov 17, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +20%
Exercise·M
Nov 17, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +9%
Sell·S
Nov 17, 25

Schultz Erica

Director · 10b5-1

$102.3K

10.0K sh · $10.23

Own -9%
Other·F
Nov 15, 25

HANSEN THOMAS NEERGAARD KEY

President

$983.1K

91.6K sh · $10.73

Own -5%
Other·F
Nov 15, 25

Liu Curtis

Chief Technology Officer

$387.3K

36.1K sh · $10.73

Own -5%
Other·F
Nov 15, 25

Casey Andrew KEY

Chief Financial Officer

$583.7K

54.4K sh · $10.73

Own -5%
Exercise·C
Nov 11, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

400.0K sh

Own +190%
Exercise·C
Nov 11, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$0

400.0K sh

Own New
Sell·S
Nov 11, 25

Skates Spenser KEY

Chief Executive Officer · 10b5-1

$4.4M

400.0K sh · $10.99

Own -100%
Buy·P
Nov 7, 25

Casey Andrew KEY

Chief Financial Officer

$299.7K

30.0K sh · $9.99

Own +3%
Exercise·M
Oct 15, 25

Schultz Erica

Director · 10b5-1

$0

10.0K sh

Own +17%
Sell·S
Oct 15, 25

Schultz Erica

Director · 10b5-1

$101.2K

10.0K sh · $10.12

Own -9%
Exercise·M
Oct 15, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +9%
Grant·A
Oct 5, 25

Tzuo Tien

Director

$0

977 sh

Own +1%
Exercise·M
Sep 15, 25

Schultz Erica

Director · 10b5-1

$0

10.0K sh

Own +14%
Sell·S
Sep 15, 25

Schultz Erica

Director · 10b5-1

$110.6K

10.0K sh · $11.06

Own -9%
Exercise·M
Sep 15, 25

Schultz Erica

Director · 10b5-1

$41.9K

10.0K sh · $4.19

Own +9%
Exercise·M
Aug 15, 25

Schultz Erica

Director · 10b5-1

$31.4K

7.5K sh · $4.19

Own +9%
Sell·S
Aug 15, 25

Schultz Erica

Director · 10b5-1

$86.0K

7.5K sh · $11.46

Own -7%
Exercise·M
Aug 15, 25

Schultz Erica

Director · 10b5-1

$31.4K

7.5K sh · $4.19

Own +7%
Other·F
Aug 15, 25

Liu Curtis

Chief Technology Officer

$393.4K

34.3K sh · $11.47

Own -4%
Other·F
Aug 15, 25

Casey Andrew KEY

Chief Financial Officer

$624.0K

54.4K sh · $11.47

Own -5%
Other·F
Aug 15, 25

HANSEN THOMAS NEERGAARD KEY

President

$1.1M

95.8K sh · $11.47

Own -5%
Other·G
Aug 4, 25

Skates Spenser KEY

Chief Executive Officer

$0

1.0M sh

Own -50%
Other·G
Aug 4, 25

Skates Spenser KEY

Chief Executive Officer

$0

1.0M sh

Own -16%
Exercise·M
Jul 15, 25

Schultz Erica

Director · 10b5-1

$31.4K

7.5K sh · $4.19

Own +8%
Exercise·M
Jul 15, 25

Schultz Erica

Director · 10b5-1

$31.4K

7.5K sh · $4.19

Own +7%
Sell·S
Jul 15, 25

Schultz Erica

Director · 10b5-1

$94.2K

7.5K sh · $12.56

Own -7%
Grant·A
Jul 5, 25

Tzuo Tien

Director

$0

894 sh

Own +1%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 12, 2026	Wong Catherine 10b5-1	Director	Sell S	7.5K	-6%	$6.79	$50.6K
Jun 9, 2026	Wong Catherine	Director	Grant A	24.9K	+26%	—	$0
Jun 9, 2026	Grady Patrick W	Director, 10% Owner	Grant A	24.9K	+41%	—	$0
Jun 9, 2026	Schultz Erica	Director	Grant A	24.9K	+21%	—	$0
Jun 9, 2026	Gill Ronald S	Director	Grant A	24.9K	+33%	—	$0
Jun 9, 2026	Whitehurst James M	Director	Grant A	24.9K	+15%	—	$0
Jun 1, 2026	Liu Curtis 10b5-1	Chief Technology Officer	Sell S	22.2K	-2%	$8.03	$178.2K
Jun 1, 2026	Liu Curtis 10b5-1	Chief Technology Officer	Sell S	22.8K	-2%	$8.03	$182.9K
May 15, 2026	Nathaniel Glenn Crook	Chief Commercial Officer	Other F	101.3K	-5%	$6.06	$613.8K
May 15, 2026	Casey Andrew KEY	Chief Financial Officer	Other F	64.9K	-4%	$6.06	$393.1K
May 15, 2026	Liu Curtis	Chief Technology Officer	Other F	40.3K	-4%	$6.06	$244.1K
May 15, 2026	Skates Spenser KEY	CEO and President	Other F	39.6K	-3%	$6.06	$239.7K
May 4, 2026	Liu Curtis 10b5-1	Chief Technology Officer	Sell S	17.6K	-2%	$8.12	$142.9K
Apr 21, 2026	Skates Spenser KEY	CEO and President	Grant A	1.3M	New	—	$0
Apr 15, 2026	Nathaniel Glenn Crook	Chief Commercial Officer	Grant A	974.9K	+84%	—	$0
Apr 15, 2026	Nathaniel Glenn Crook	Chief Commercial Officer	Grant A	278.6K	+32%	—	$0
Apr 15, 2026	Casey Andrew KEY	Chief Financial Officer	Grant A	431.8K	+40%	—	$0
Apr 15, 2026	Liu Curtis	Chief Technology Officer	Grant A	417.8K	+63%	—	$0
Apr 5, 2026	Tzuo Tien	Director	Grant A	1.5K	+2%	—	$0
Apr 5, 2026	Schultz Erica	Director	Grant A	1.7K	+1%	—	$0
Mar 6, 2026	Liu Curtis 10b5-1	Chief Technology Officer	Sell S	33.2K	-5%	$8.01	$265.9K
Mar 5, 2026	Liu Curtis 10b5-1	Chief Technology Officer	Sell S	30.1K	-5%	$8.00	$240.5K
Feb 15, 2026	Liu Curtis	Chief Technology Officer	Other F	26.7K	-4%	$6.34	$169.1K
Feb 15, 2026	HANSEN THOMAS NEERGAARD KEY	President	Other F	69.1K	-4%	$6.34	$438.4K
Feb 15, 2026	Casey Andrew KEY	Chief Financial Officer	Other F	39.4K	-4%	$6.34	$250.0K
Jan 5, 2026	Tzuo Tien	Director	Grant A	999	+1%	—	$0
Dec 26, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	100	+0%	—	$0
Dec 26, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	100	New	—	$0
Dec 26, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Sell S	100	-100%	$12.00	$1.2K
Dec 24, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	42.7K	+8%	—	$0
Dec 24, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Sell S	42.7K	-100%	$12.01	$513.3K
Dec 24, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	42.7K	New	—	$0
Dec 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+25%	$4.19	$41.9K
Dec 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+9%	$4.19	$41.9K
Dec 15, 2025	Schultz Erica 10b5-1	Director	Sell S	10.0K	-8%	$10.88	$108.8K
Nov 17, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+20%	$4.19	$41.9K
Nov 17, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+9%	$4.19	$41.9K
Nov 17, 2025	Schultz Erica 10b5-1	Director	Sell S	10.0K	-9%	$10.23	$102.3K
Nov 15, 2025	HANSEN THOMAS NEERGAARD KEY	President	Other F	91.6K	-5%	$10.73	$983.1K
Nov 15, 2025	Liu Curtis	Chief Technology Officer	Other F	36.1K	-5%	$10.73	$387.3K
Nov 15, 2025	Casey Andrew KEY	Chief Financial Officer	Other F	54.4K	-5%	$10.73	$583.7K
Nov 11, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	400.0K	+190%	—	$0
Nov 11, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Exercise C	400.0K	New	—	$0
Nov 11, 2025	Skates Spenser KEY 10b5-1	Chief Executive Officer	Sell S	400.0K	-100%	$10.99	$4.4M
Nov 7, 2025	Casey Andrew KEY	Chief Financial Officer	Buy P	30.0K	+3%	$9.99	$299.7K
Oct 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+17%	—	$0
Oct 15, 2025	Schultz Erica 10b5-1	Director	Sell S	10.0K	-9%	$10.12	$101.2K
Oct 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+9%	$4.19	$41.9K
Oct 5, 2025	Tzuo Tien	Director	Grant A	977	+1%	—	$0
Sep 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+14%	—	$0
Sep 15, 2025	Schultz Erica 10b5-1	Director	Sell S	10.0K	-9%	$11.06	$110.6K
Sep 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	10.0K	+9%	$4.19	$41.9K
Aug 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	7.5K	+9%	$4.19	$31.4K
Aug 15, 2025	Schultz Erica 10b5-1	Director	Sell S	7.5K	-7%	$11.46	$86.0K
Aug 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	7.5K	+7%	$4.19	$31.4K
Aug 15, 2025	Liu Curtis	Chief Technology Officer	Other F	34.3K	-4%	$11.47	$393.4K
Aug 15, 2025	Casey Andrew KEY	Chief Financial Officer	Other F	54.4K	-5%	$11.47	$624.0K
Aug 15, 2025	HANSEN THOMAS NEERGAARD KEY	President	Other F	95.8K	-5%	$11.47	$1.1M
Aug 4, 2025	Skates Spenser KEY	Chief Executive Officer	Other G	1.0M	-50%	—	$0
Aug 4, 2025	Skates Spenser KEY	Chief Executive Officer	Other G	1.0M	-16%	—	$0
Jul 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	7.5K	+8%	$4.19	$31.4K
Jul 15, 2025	Schultz Erica 10b5-1	Director	Exercise M	7.5K	+7%	$4.19	$31.4K
Jul 15, 2025	Schultz Erica 10b5-1	Director	Sell S	7.5K	-7%	$12.56	$94.2K
Jul 5, 2025	Tzuo Tien	Director	Grant A	894	+1%	—	$0

About AMPL insider trading

This page tracks insider transactions for Amplitude, Inc. (AMPL) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.