Amplitude Inc

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Amplitude Inc
TickerAMPL
CIK #0001866692
CUSIP032015703
SectorTechnology - Services-Prepackaged Software
Address201 Third Street, Suite 200, San Francisco, CA 94103
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Amplitude Inc 2021-06-11 200.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001866692] 10-K
[0001866692] 10-Q
[0001866692] 3
[0001866692] 4
[0001866692] 5
[0001866692] 8-K
[0001866692] D
[0001866692] SC 13D
[0001866692] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Portfolio Management LLC Amplitude Inc [2026-04-28] 0.0
Wellington Management Group LLP Amplitude Inc [2026-04-07] 0.0
Wellington Management Group LLP Amplitude Inc [2026-04-07] 0.0
AllianceBernstein LP Amplitude Inc [2025-11-14] 0.0
T Rowe Price Investment Management Inc Amplitude Inc [2024-02-14] 8.2
FMR LLC Amplitude Inc [2024-02-09] 0.0
BlackRock Inc Amplitude Inc [2024-01-29] 6.2
Soma Equity Partners LP Amplitude Inc [2023-02-13] 5.09
BlackRock Inc Amplitude Inc [2023-02-03] 5.2
SC US TTGP Ltd Amplitude Inc [2022-03-07] 4.5
SC US TTGP Ltd Amplitude Inc [2022-02-14] 4.51
Liu Curtis Amplitude Inc [2022-02-14] 12.1
Skates Spenser Amplitude Inc [2022-02-14] 12.2
Benchmark Capital Partners VIII LP Amplitude Inc [2022-02-14] 11.6
Institutional Venture Partners XV LP Amplitude Inc [2022-02-14] 10.5
Battery Ventures XI-A LP Amplitude Inc [2022-02-14] 6.4
GIC Private Ltd Amplitude Inc [2022-02-14] 8.5
FMR LLC Amplitude Inc [2022-02-09] 0.0
Vanguard Group Inc Amplitude Inc [2022-02-09] 5.51
Form 3/4/5 Filer 2011 - 2026
Schultz Erica
Amplitude Inc
Tzuo Tien
Wong Catherine
Whitehurst James M
Gill Ronald S
Grady Patrick W
Liu Curtis
Skates Spenser
Crook Nathaniel Glenn
Casey Andrew
Hansen Thomas Neergaard
Vishria Eric
Steele Elisa
Harms Christopher
Elhafed Morad
Lee Roger H
Tobin Scott R
Brown Michael Maurice
Agrawal Neeraj
Fleischer Russell L
Stoner Chelsea R
Thakker Dharmesh
Feldman Jesse
Battery Ventures Select Fund I LP
Battery Partners Select Fund I LP
Battery Partners Select Fund I GP LLC
SC US TTGP Ltd
Sequoia Grove II LLC
Sequoia Grove Manager LLC
Sequoia Capital US Growth IX Principals Fund LP
Sequoia Capital US Growth Fund IX LP
Sequoia Capital US Growth Partners Fund IX LP
SC US Venture 2010 Management LP
SC US Growth VIII Management LP
Sequoia Capital US Venture 2010-Seed Fund LP
SC US Growth IX Management LP
Sequoia Capital US Growth Fund VIII LP
Battery Partners XI LLC
Battery Ventures XI-B LP
Battery Ventures XI-A Side Fund LP
Battery Partners XI Side Fund LLC
Battery Ventures XI-A LP
Battery Ventures XI-B Side Fund LP
Battery Investment Partners XI LLC
Sarkis Ninos
Vuong Hoang
Benchmark Founders' Fund VIII LP
Benchmark Capital Management Co VIII LLC
Benchmark Capital Partners VIII LP
Benchmark Founders' Fund VIII-B LP
Gurley J William
Hu An-Yen
Lasky Mitchell
Fenton Peter H
Puttagunta Chetan
Tavel Sarah E
Cohler Matt
Heinz Matthew
Battery Management Corp
Johnson Jennifer L
Phelps Dennis B
Chaffee Todd C
Spurlock Steven M
Liaw Eric
Miller J Sanford
Maltz Jules A
Institutional Venture Management XV LLC
Dash Somesh
Harrick Stephen J
Fogelsong Norman A
Institutional Venture Partners XV LP
Institutional Venture Partners XV Executive Fund LP
Parnafes Itzik
Battery Investment Partners Select Fund I LP
Botha Roelof
Sequoia Capital Global Growth Fund III - Endurance Partners
SCGGF III - Endurance Partners Management LP
Leone Douglas M
GIC Private Ltd
Jasmine Ventures PTE Ltd
GIC Special Investments Pte Ltd
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Liu Curtis
Class A Common Stock
2026-03-06 Sell 33,201 $8.01 265,940
Liu Curtis
Class A Common Stock
2026-03-05 Sell 30,061 $8.00 240,488
Casey Andrew
Class A Common Stock
2026-02-15 Tax withheld 39,438 $6.34 250,037
Liu Curtis
Class A Common Stock
2026-02-15 Tax withheld 26,672 $6.34 169,100
Hansen Thomas Neergaard
Class A Common Stock
2026-02-15 Tax withheld 69,142 $6.34 438,360
Tzuo Tien
Class A Common Stock
2026-01-05 Grant 999 $0.00
Skates Spenser
Class B Common Stock · derivative
2025-12-26 Conversion 100 $0.00
Skates Spenser
Class A Common Stock
2025-12-26 Sell 100 $12.00 1,200
Skates Spenser
Class A Common Stock
2025-12-26 Conversion 100 $0.00
Skates Spenser
Class B Common Stock · derivative
2025-12-24 Conversion 42,743 $0.00
Skates Spenser
Class A Common Stock
2025-12-24 Sell 42,743 $12.01 513,343
Skates Spenser
Class A Common Stock
2025-12-24 Conversion 42,743 $0.00
Schultz Erica
Class A Common Stock
2025-12-15 Sell 10,000 $10.88 108,800
Schultz Erica
Class A Common Stock
2025-12-15 Option exercise 10,000 $4.19 41,900
Schultz Erica
Stock Option (Right to Buy) · derivative
2025-12-15 Option exercise 10,000 $4.19 41,900
Schultz Erica
Class A Common Stock
2025-11-17 Option exercise 10,000 $4.19 41,900
Schultz Erica
Class A Common Stock
2025-11-17 Sell 10,000 $10.23 102,300
Schultz Erica
Stock Option (Right to Buy) · derivative
2025-11-17 Option exercise 10,000 $4.19 41,900
Hansen Thomas Neergaard
Class A Common Stock
2025-11-15 Tax withheld 91,618 $10.73 983,061
Casey Andrew
Class A Common Stock
2025-11-15 Tax withheld 54,400 $10.73 583,712
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 218 83,431,913
2025-12-31 212 80,926,436
2025-09-30 205 74,471,965
2025-06-30 191 69,991,521
2025-03-31 198 64,154,331
2024-12-31 151 61,298,158
2024-09-30 136 58,554,450
2024-06-30 134 57,078,512
2024-03-31 131 54,442,705
2023-12-31 140 50,829,552
2023-09-30 146 49,438,808
2023-06-30 137 48,004,630
Form 13F Holdings
Firm Period DFND Voting Shares
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 2,486 48,364
Merit Financial Group LLC [2026-06-30] OTR 0 19,216
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 14,445 14,445
Alaska Retirement Management Board [2026-06-30] SOLE 4,549 4,549
Farther Finance Advisors LLC [2026-06-30] SOLE 0 4,256
Versant Capital Management Inc [2026-06-30] SOLE 3,203 3,203
IFP Advisors LLC [2026-06-30] SOLE 2,899 2,899
True Wealth Design LLC [2026-06-30] SOLE 0 726
Gamma Investing LLC [2026-06-30] DFND 669 669
Fortitude Family Office LLC [2026-06-30] SOLE 613 613
Physician Wealth Advisors Inc [2026-06-30] SOLE 0 314
Merit Financial Group LLC [2026-06-30] SOLE 0 223
Ulland Investment Advisors LLC [2026-06-30] SOLE 50 50
HHM Wealth Advisors LLC [2026-06-30] SOLE 0 12
Hughes Financial Services LLC [2026-06-30] SOLE 1 1
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