Amplitude, Inc. 13F holders
203 funds reported a position in Amplitude, Inc. in their 13F for the quarter ended 30 June 2026, together 80.5 million shares worth $616.4 million. Against the quarter before, 30 opened a position, 79 added, 63 trimmed and 48 sold out; together they sold a net 3.0 million shares. The largest holders: Wellington Management Group LLP, BlackRock, Inc. and Vanguard Portfolio Management LLC.
Funds holding203-17 on Q1 2026
Shares they held80.5Mworth $616.4 million
Net sold on the quarter3.0M sharesabout $22.8 million at the funds' values
Funds buying to selling109 to 111opened or added, to cut or sold
Opened 30Added 79Held 28Trimmed 63Sold out 48
What each fund did in AMPL against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in AMPL in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 35 reported a position in Amplitude, Inc.: 4 opened one, 11 added, 11 trimmed and 4 sold out, a net 15,975 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Amplitude, Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 6.0 million shares worth $45.7 million, 0.0% of its reported book. Sold out: Renaissance Technologies. In the quarter, 3 funds added or opened a position and 5 trimmed or sold out; together they sold a net 170,702 shares, about $1.3 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 5,979,436 | $45.7 million | 0.0% | +2,668,152 | added | 30 June 2026 | 13F |
| Geode Capital Management | 2,477,561 | $19.0 million | 0.0% | +151,454 | added | 30 June 2026 | 13F |
| Baillie Gifford | 1,779,555 | $13.6 million | 0.0% | -854,595 | trimmed | 30 June 2026 | 13F |
| Point72 Asset Management | 1,409,424 | $10.8 million | 0.0% | -1,001,876 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 872,866 | $6.7 million | 0.0% | +836,683 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 416,224 | $3.2 million | 0.0% | -275,437 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 383,771 | $2.9 million | 0.0% | -1,648,052 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 0 | $0 | 0.0% | -47,031 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 11,086,006 | 13.76% | $84.8 million | 0.01% | -68,550 | 13F |
| BlackRock, Inc. | 10,044,780 | 12.47% | $76.8 million | 0.00% | -117,358 | 13F |
| Vanguard Portfolio Management LLC | 6,083,939 | 7.55% | $46.5 million | 0.00% | -81,152 | 13F |
| FMR LLC | 5,979,436 | 7.42% | $45.7 million | 0.00% | +2,668,152 | 13F |
| Vanguard Capital Management LLC | 3,939,697 | 4.89% | $30.1 million | 0.00% | -151,623 | 13F |
| SC US (ttgp), Ltd | 2,798,951 | 3.48% | $21.4 million | 0.07% | no change | 13F |
| State Street Corp. | 2,604,696 | 3.23% | $19.9 million | 0.00% | +175,389 | 13F |
| Geode Capital Management, LLC | 2,477,561 | 3.08% | $19.0 million | 0.00% | +151,454 | 13F |
| Trigran Investments, Inc. | 2,321,209 | 2.88% | $17.8 million | 3.26% | +1,940,683 | 13F |
| Baillie Gifford & Co. | 1,779,555 | 2.21% | $13.6 million | 0.01% | -854,595 | 13F |
| Optimus Prime Fund Management Co., Ltd. | 1,580,100 | 1.96% | $12.1 million | 0.89% | no change | 13F |
| AQR Capital Management LLC | 1,508,350 | 1.87% | $11.5 million | 0.00% | +273,322 | 13F |
| Point72 Asset Management, L.P. | 1,409,424 | 1.75% | $10.8 million | 0.02% | -1,001,876 | 13F |
| Morgan Stanley | 1,149,750 | 1.43% | $8.8 million | 0.00% | +229,244 | 13F |
| Gagnon Securities LLC | 1,055,508 | 1.31% | $8.1 million | 1.56% | -4,328 | 13F |
| Royce & Associates LP | 1,050,976 | 1.30% | $8.0 million | 0.07% | new | 13F |
| Squarepoint Ops LLC | 1,021,647 | 1.27% | $7.8 million | 0.01% | +309,252 | 13F |
| Jacobs Levy Equity Management, Inc. | 959,626 | 1.19% | $7.3 million | 0.03% | -771,811 | 13F |
| Northern Trust Corp. | 924,363 | 1.15% | $7.1 million | 0.00% | +55,834 | 13F |
| Dimensional Fund Advisors LP | 896,254 | 1.11% | $6.9 million | 0.00% | +278,541 | 13F |
| Citadel Advisors LLC | 872,866 | 1.08% | $6.7 million | 0.00% | +836,683 | 13F |
| Meros Investment Management, LP | 827,977 | 1.03% | $6.3 million | 2.01% | -335,849 | 13F |
| Charles Schwab Investment Management Inc. | 803,643 | 1.00% | $6.1 million | 0.00% | +69,942 | 13F |
| Monimus Capital Management, LP | 783,808 | 0.97% | $6.0 million | 1.52% | -480,478 | 13F |
| CenterBook Partners LP | 771,163 | 0.96% | $5.9 million | 0.29% | +730,255 | 13F |
| Vanguard Fiduciary Trust Co. | 677,695 | 0.84% | $5.2 million | 0.00% | +16,891 | 13F |
| ArrowMark Colorado Holdings LLC | 656,977 | 0.82% | $5.0 million | 0.21% | -599,046 | 13F |
| Gagnon Advisors, LLC | 634,987 | 0.79% | $4.9 million | 3.09% | no change | 13F |
| Cerity Partners LLC | 473,812 | 0.59% | $3.6 million | 0.00% | +11,022 | 13F |
| Acadian Asset Management LLC | 467,502 | 0.58% | $3.6 million | 0.00% | -332,528 | 13F |
| Two Sigma Investments, LP | 416,224 | 0.52% | $3.2 million | 0.00% | -275,437 | 13F |
| Quantinno Capital Management LP | 402,757 | 0.50% | $3.1 million | 0.00% | +32,242 | 13F |
| Millennium Management LLC | 383,771 | 0.48% | $2.9 million | 0.00% | -1,648,052 | 13F |
| Toronado Partners, LLC | 366,751 | 0.46% | $2.8 million | 7.89% | +47,928 | 13F |
| Lazard Asset Management LLC | 355,092 | 0.44% | $2.7 million | 0.00% | +339,124 | 13F |
| Susquehanna Fundamental Investments, LLC | 354,831 | 0.44% | $2.7 million | 0.05% | +235,912 | 13F |
| Mercer Global Advisors Inc. | 342,860 | 0.43% | $2.6 million | 0.00% | +13,435 | 13F |
| Man Group plc | 338,754 | 0.42% | $2.6 million | 0.01% | -139,584 | 13F |
| Voya Investment Management LLC | 322,244 | 0.40% | $2.5 million | 0.00% | +587 | 13F |
| UBS Group AG | 321,940 | 0.40% | $2.5 million | 0.00% | +199,916 | 13F |
| Goldman Sachs Group Inc. | 318,438 | 0.40% | $2.4 million | 0.00% | -279,832 | 13F |
| S Squared Technology, LLC | 315,402 | 0.39% | $2.4 million | 0.75% | +165,000 | 13F |
| Madison Asset Management, LLC | 312,399 | 0.39% | $2.4 million | 0.03% | -1,661 | 13F |
| Numerai GP LLC | 295,142 | 0.37% | $2.3 million | 0.18% | +275,156 | 13F |
| Bank of New York Mellon Corp | 288,118 | 0.36% | $2.2 million | 0.00% | +25,588 | 13F |
| JPMorgan Chase & Co. | 276,147 | 0.34% | $2.1 million | 0.00% | -52,793 | 13F |
| AllianceBernstein L.P. | 305,318 | 0.38% | $2.1 million | 0.00% | -12,300 | 13F |
| Nuveen, LLC | 265,301 | 0.33% | $2.0 million | 0.00% | -2,289,473 | 13F |
| Bank of America Corp. | 244,236 | 0.30% | $1.9 million | 0.00% | -311,816 | 13F |
| Palogic Value Management, L.P. | 240,176 | 0.30% | $1.8 million | 0.33% | 13F |
The 50 largest of the 203 funds that reported a position in AMPL in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on AMPL
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 164,200 | $1.3 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 96,200 | $735,930 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 August 2026 | 13G | FMR LLC and 3 others | 6.0 million | 5.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 July 2026 | 13G/A | BlackRock, Inc. and 1 other | 7.9 million | 7.6% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 18 May 2026 | 13G/A | AllianceBernstein L.P. and 1 other | 317,618 | 0.3% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 6.3 million | 6.0% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 April 2026 | 13G | Wellington Management Group LLP and 7 others | 11.2 million | 10.7% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 April 2026 | 13G | Wellington Management Group LLP and 7 others | 11.2 million | 10.7% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 17 February 2026 | 13G/A | T. Rowe Price Investment Management, Inc. and 1 other | 441 | 0.0% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 7 January 2026 | 13G/A | The Vanguard Group and 1 other | 10.8 million | 10.4% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G/A | T. Rowe Price Investment Management, Inc. and 1 other | 5.1 million | 5.0% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G | AllianceBernstein L.P. and 1 other | 6.0 million | 5.9% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 16 September 2026 | 919 | $13.37 | SEC |
| 15 September 2026 | 9,842 | $13.65 | SEC |
| 2 September 2026 | 888 | $13.83 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.