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Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Oct 15, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
- Oct 2, 2026Reported sale · Form 4Spenser Skates, CEO and President · $1.0MOpen the filing ↗
- Oct 2, 2026Notice of sale · Form 144Skates Spenser · Member of immediate family of any of the foregoing · $1.0MOpen the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record49419 flagged findings
Reported transactions (Form 4)80since Jun 6, 2023 · and 3 other holdings
Corporate events (8-K)14since Nov 9, 2021
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
Amplitude is an American publicly traded company that develops digital analytics software. The company was listed publicly on the Nasdaq stock exchange under the ticker symbol AMPL on September 28, 2021.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
Regulatory history
Topics detected in its SEC reports, with the original excerpt.
Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.
- 2026-05-07export control restrictionsrecentOpen filing ↗“…and results of operations. Risks Related to Regulatory Compliance and Legal Matters We are subject to government regulation,…”
+1 more passage from the same document
- “…platform in a manner that is inconsistent with such policies. Any use of open-source software inconsistent with our policies or…”
- 2026-05-07capital return (buybacks/dividends)recentOpen filing ↗“…forfeitures, is reflected in the condensed consolidated statements of operations and comprehensive loss (in thousands): Three…”
+1 more passage from the same document
- “…of operations and comprehensive loss (in thousands): Three Months Ended March 31, 2026 2025 Cost of revenue $ 1,210 $ 1,267…”
- 2026-05-07Department of Justice inquiryrecentOpen filing ↗“…business process changes may be required. Similar laws have been passed in other states, reflecting a trend toward more…”
Original excerpts from SEC filings, untranslated. Not advice and not a prediction.
The 25 most recent filings (of 494)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Oct 15, 26Form 4 ↗Insider transaction new
- Oct 15, 26Form 3 ↗Insider transaction new
- Oct 15, 268-K ↗Current report · A senior executive left or was appointed new
- Oct 2, 26Form 144 ↗Notice of proposed sale
- Oct 2, 26Form 4 ↗Insider transaction
Notice of proposed sale · 2 Form 144 filingsshow all 2hide
- Oct 1, 26Form 144 ↗Notice of proposed sale
- Sep 30, 26Form 144 ↗Notice of proposed sale
- Sep 14, 26Form 4 ↗Insider transaction
- Sep 10, 26Form 144 ↗Notice of proposed sale
- Sep 9, 26Form 4 ↗Insider transaction
- Sep 4, 26Form 144 ↗Notice of proposed sale
- Aug 6, 2610-Q ↗Quarterly report
- Aug 6, 26SCHEDULE 13G ↗Passive stake · FMR LLC · 5.8% · event on Jun 30, 26
- Aug 5, 268-K ↗Current report · Results
- Jul 27, 26SCHEDULE 13G/A ↗Passive stake · BlackRock, Inc. · 7.6% · event on Jun 30, 26 · amendment
494 filings on record, the oldest from Jul 19, 21.
Listing the 25 most recent filings of the 494 on record.
1112
3 senior executive changes2025 – 2026show all 3hide
- Oct 15, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Feb 24, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Jun 12, 25A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Apr 1, 25Entered a material agreement8-K 1.01 ↗
4 senior executive changes2023 – 2025show all 4hide
- Feb 25, 25A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Aug 5, 24A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- May 24, 24A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- May 5, 23A senior executive left or was appointed8-K 5.02 ↗
- Apr 5, 23Restructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
5 senior executive changes2021 – 2023show all 5hide
- Apr 5, 23A senior executive left or was appointed8-K 5.02 ↗
- Feb 15, 23A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Jul 1, 22A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Jan 14, 22A senior executive left or was appointed8-K 5.02 ↗
- Nov 9, 21A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13D: stake and stated purpose
Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.
- SC US (TTGP), LTD. ("SC US (TTGP)")9.9%Feb 20, 25SCHEDULE 13D/A ↗13 co-filers on this document — the figure is the largest single stake, not their sum.
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- Wellington Management Group LLP10.7%Mar 31, 26SCHEDULE 13G ↗4 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
- The Vanguard Group10.4%Dec 31, 25SCHEDULE 13G/A ↗
- BlackRock, Inc.7.6%Jun 30, 26SCHEDULE 13G/A ↗
- Vanguard Portfolio Management6.0%Mar 31, 26SCHEDULE 13G ↗
- FMR LLC5.8%Jun 30, 26SCHEDULE 13G ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
show 4 more holdershide
- T. Rowe Price Investment Management, Inc.5.0%Sep 30, 25SCHEDULE 13G/A ↗
- GIC Private Ltd4.8%Jun 30, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
- Neeraj Agrawal4.7%Mar 31, 25SCHEDULE 13G/A ↗20 co-filers on this document — the figure is the largest single stake, not their sum.
- AllianceBernstein L.P.0.3%Mar 31, 26SCHEDULE 13G/A ↗1 earlier filing
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Oct 2, Skates Spenser filed notice of intent to sell up to $1.0M. That is about 0.07% of shares outstanding. It is filed under a scheduled plan (10b5-1), arranged in advance.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $1.0M on Oct 2, per their Form 4. That is 100% of the shares announced so far, and the window is still open.
View notice (Form 144) ↗+4 more recent notices · 4 with a later sale
- Oct 2, 26Sell$1.0MSpenser SkatesCEO and President↗
- Oct 1, 26Sell$51KSpenser SkatesCEO and President↗
- Sep 30, 26Sell$20KSpenser SkatesCEO and President↗
- Sep 10, 26Sell$2.3MSpenser SkatesCEO and President↗
- Sep 4, 26Sell$3.9MNathaniel Glenn CrookChief Commercial Officer↗
- Jun 12, 26Sell$51KCatherine Wong↗
- Jun 1, 26Sell$183KCurtis LiuChief Technology Officer↗
- May 4, 26Sell$143KCurtis LiuChief Technology Officer↗
- Mar 6, 26Sell$266KCurtis LiuChief Technology Officer↗
- Mar 5, 26Sell$241KCurtis LiuChief Technology Officer↗
Stock compensation, tax and giftsshow the 30 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Oct 15, 26Compensationamount n/aVijaye Ganesh Raji↗
- Oct 5, 26Compensationamount n/aTien Tzuo↗
- Oct 5, 26Compensationamount n/aErica Schultz↗
- Oct 2, 26Otheramount n/aSpenser SkatesCEO and President↗
- Oct 1, 26Otheramount n/aSpenser SkatesCEO and President↗
- Sep 30, 26Otheramount n/aSpenser SkatesCEO and President↗
- Sep 10, 26Otheramount n/aSpenser SkatesCEO and President↗
- Aug 17, 26Tax$949KAndrew CaseyChief Financial Officer↗
- Aug 17, 26Tax$1.4MNathaniel Glenn CrookChief Commercial Officer↗
- Aug 17, 26Tax$682KSpenser SkatesCEO and President↗
- Aug 17, 26Tax$702KCurtis LiuChief Technology Officer↗
- Jul 5, 26Compensationamount n/aErica Schultz↗
- Jul 5, 26Compensationamount n/aTien Tzuo↗
- Jun 9, 26Compensationamount n/aJames M Whitehurst↗
- Jun 9, 26Compensationamount n/aRonald S Gill↗
- Jun 9, 26Compensationamount n/aErica Schultz↗
- Jun 9, 26Compensationamount n/aPatrick W Grady↗
- Jun 9, 26Compensationamount n/aCatherine Wong↗
- May 15, 26Tax$240KSpenser SkatesCEO and President↗
- May 15, 26Tax$244KCurtis LiuChief Technology Officer↗
- May 15, 26Tax$393KAndrew CaseyChief Financial Officer↗
- May 15, 26Tax$614KNathaniel Glenn CrookChief Commercial Officer↗
- Apr 21, 26Compensationamount n/aSpenser SkatesCEO and President↗
- Apr 15, 26Compensationamount n/aCurtis LiuChief Technology Officer↗
- Apr 15, 26Compensationamount n/aAndrew CaseyChief Financial Officer↗
- Apr 15, 26Compensationamount n/aNathaniel Glenn CrookChief Commercial Officer↗
- Apr 15, 26Compensationamount n/aNathaniel Glenn CrookChief Commercial Officer↗
- Apr 5, 26Compensationamount n/aErica Schultz↗
- Apr 5, 26Compensationamount n/aTien Tzuo↗
- Feb 15, 26Tax$438KTHOMAS NEERGAARD HANSENPresident↗
The full record holds 208 transactions and goes back to Jan 28, 22.
Its sector and its market
Amplitude, Inc. among Information Technology companies
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- 250 clean closes in the period.
- SEC records
- 494 documents on file, from Jul 19, 2021 to Oct 15, 2026.
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- Wikipedia, read on Sep 3, 2026.
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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