Amplitude, Inc. (AMPL) Ownership
AMPL ownership summary
as of October 18, 2026- Institutions
- 80.5% of shares outstanding
- Insiders
- 5.10% of shares outstanding
- Shares outstanding
- 103.9M
- Float
- 95.0M shares available to trade
- Short interest
- 8.32% 7.1M shares short
- Days to cover
- 4.36 short interest up 10.0% vs prior month
- Institutions 80.52%
- Insiders 5.10%
- Other investors 14.38%
AMPL top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Wellington Management Company LLP | 8.87% | 11.1M | $163.5M | −68,550 (−0.6%) | June 30, 2026 |
| 2 | BlackRock Inc | 8.04% | 10.0M | $148.2M | −117,358 (−1.2%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 4.87% | 6.1M | $89.7M | −81,152 (−1.3%) | June 30, 2026 |
| 4 | FMR Inc | 4.79% | 6.0M | $88.2M | +2.7M (+80.6%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 3.15% | 3.9M | $58.1M | −151,623 (−3.7%) | June 30, 2026 |
| 6 | SC US (TTGP), LTD. | 2.24% | 2.8M | $41.3M | — | June 30, 2026 |
| 7 | State Street Corp | 2.09% | 2.6M | $38.4M | +175,389 (+7.2%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 1.98% | 2.5M | $36.5M | +151,454 (+6.5%) | June 30, 2026 |
| 9 | Trigran Investments Inc | 1.86% | 2.3M | $34.2M | +1.9M (+510.0%) | June 30, 2026 |
| 10 | Baillie Gifford & Co Limited. | 1.42% | 1.8M | $26.2M | −854,595 (−32.4%) | June 30, 2026 |
| 11 | Optimus Prime Fund Management Co., Ltd. | 1.26% | 1.6M | $23.3M | — | June 30, 2026 |
| 12 | AQR Capital Management LLC | 1.21% | 1.5M | $22.2M | +273,322 (+22.1%) | June 30, 2026 |
| 13 | Point72 Asset Management, L.P. | 1.13% | 1.4M | $20.8M | −1.0M (−41.5%) | June 30, 2026 |
| 14 | Morgan Stanley - Brokerage Accounts | 0.92% | 1.1M | $17.0M | +229,244 (+24.9%) | June 30, 2026 |
| 15 | Gagnon Securities LLC | 0.84% | 1.1M | $15.6M | −4,328 (−0.4%) | June 30, 2026 |
| 16 | Royce & Associates, LP | 0.84% | 1.1M | $15.5M | +1.1M (0.0%) | June 30, 2026 |
| 17 | Squarepoint Ops LLC | 0.82% | 1.0M | $15.1M | +309,252 (+43.4%) | June 30, 2026 |
| 18 | Jacobs Levy Equity Management, Inc. | 0.77% | 960K | $14.2M | −771,811 (−44.6%) | June 30, 2026 |
| 19 | Northern Trust Corp | 0.74% | 924K | $13.6M | +55,834 (+6.4%) | June 30, 2026 |
| 20 | Dimensional Fund Advisors, Inc. | 0.72% | 896K | $13.2M | +278,541 (+45.1%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 7.1M shares and 8 cut 3.1M.
AMPL top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Select Software & IT Svcs Port | 3.80% | 4.7M | $70.0M | — | August 31, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 2.25% | 2.8M | $41.4M | +40,610 (+1.5%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.01% | 2.5M | $37.0M | −28,864 (−1.1%) | September 30, 2026 |
| 4 | Vanguard Information Technology ETF | 1.79% | 2.2M | $33.0M | −9,704 (−0.4%) | August 31, 2026 |
| 5 | Vanguard Small Cap Index | 1.63% | 2.0M | $29.9M | +8,925 (+0.4%) | August 31, 2026 |
| 6 | Vanguard MStar Small Cap Growth Indx Inv | 0.93% | 1.2M | $17.1M | −5,016 (−0.4%) | August 31, 2026 |
| 7 | Fidelity Small Cap Index | 0.84% | 1.1M | $15.6M | +8,412 (+0.8%) | July 31, 2026 |
| 8 | Edinburgh Worldwide Ord | 0.75% | 942K | $13.9M | — | June 30, 2026 |
| 9 | iShares Russell 2000 Growth ETF | 0.72% | 902K | $13.3M | −1,142 (−0.1%) | September 30, 2026 |
| 10 | Hartford Small Company Y | 0.71% | 884K | $13.0M | — | August 31, 2026 |
| 11 | Royce Micro-Cap Trust | 0.53% | 664K | $9.8M | +663,903 (0.0%) | June 30, 2026 |
| 12 | BlackRock Advantage Small Cap Core Instl | 0.47% | 590K | $8.7M | −29,316 (−4.7%) | August 31, 2026 |
| 13 | Hartford Small Company HLS IA | 0.45% | 565K | $8.3M | — | August 31, 2026 |
| 14 | Vanguard Russell 2000 ETF | 0.44% | 554K | $8.2M | +14,869 (+2.8%) | August 31, 2026 |
| 15 | Schwab US Small-Cap ETF™ | 0.43% | 536K | $7.9M | +360 (+0.1%) | September 30, 2026 |
| 16 | Fidelity Extended Market Index | 0.38% | 470K | $6.9M | −17,487 (−3.6%) | August 31, 2026 |
| 17 | MassMutual Small Cap Gr Eq R5 | 0.34% | 423K | $6.2M | +29,861 (+7.6%) | June 30, 2026 |
| 18 | Baillie Gifford Global Discovery A Acc | 0.33% | 414K | $6.1M | +15,645 (+3.9%) | August 31, 2026 |
| 19 | Meridian Small Cap Growth Legacy | 0.31% | 389K | $5.7M | −145,070 (−27.2%) | June 30, 2026 |
| 20 | JHVIT Small Cap Stock NAV | 0.29% | 363K | $5.3M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AMPL insider transactions
latest 14| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-26 | Spenser Skates | Sell | $12.00 | 100 | $1,200 |
| 2025-12-24 | Spenser Skates | Sell | $12.01 | 42,743 | $513,343 |
| 2025-12-15 | Erica Schultz | Sell | $10.88 | 10,000 | $108,800 |
| 2025-11-17 | Erica Schultz | Sell | $10.23 | 10,000 | $102,300 |
| 2025-11-11 | Spenser Skates | Sell | $10.99 | 400,000 | $4.4M |
| 2025-11-07 | Andrew Casey | Buy | $9.99 | 30,000 | $299,700 |
| 2025-10-15 | Erica Schultz | Sell | $10.12 | 10,000 | $101,200 |
| 2025-09-15 | Erica Schultz | Sell | $11.06 | 10,000 | $110,600 |
| 2025-08-15 | Erica Schultz | Sell | $11.46 | 7,500 | $85,950 |
| 2025-07-15 | Erica Schultz | Sell | $12.56 | 7,500 | $94,200 |
| 2025-06-11 | Catherine Wong | Sell | $12.49 | 8,502 | $106,190 |
| 2025-06-11 | Erica Schultz | Sell | $12.49 | 26,394 | $329,661 |
| 2025-05-19 | Catherine Wong | Sell | $11.75 | 3,515 | $41,301 |
| 2025-05-08 | Eric Vishria | Sell | $10.15 | 25,000 | $253,750 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
AMPL shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AMPL
Institutional investors own 80.5% of Amplitude's shares and insiders 5.10%. The largest holder is Wellington Management Company LLP with 8.87% of the shares (11.1M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 8 reduced their stake in the latest filings. Short interest is 8.32% of the float, or 4.36 days of average trading volume. The share count rose 457.5% since 2019.
Related: AMPL analyst forecast, AMPL key metrics. See the AMPL stock overview for the latest quote and news.
AMPL ownership FAQ
Who owns the most Amplitude stock?
The largest shareholders of Amplitude are Wellington Management Company LLP (8.87%), BlackRock Inc (8.04%), Vanguard Portfolio Management, LLC (4.87%), FMR Inc (4.79%), Vanguard Capital Management, LLC (3.15%).
What percentage of Amplitude is owned by institutions?
Institutions hold 80.5% of Amplitude's shares outstanding; insiders hold 5.10%.
Which funds own Amplitude?
The largest fund holders of Amplitude are Fidelity Select Software & IT Svcs Port (3.80%), Vanguard MStar Total Stk Mkt Idx Invest (2.25%), iShares Russell 2000 ETF (2.01%), Vanguard Information Technology ETF (1.79%), Vanguard Small Cap Index (1.63%).
What is Amplitude's short interest?
7.1M shares of Amplitude were sold short, 8.32% of the float; at the average daily volume it would take 4.36 days to cover.
Are insiders buying or selling Amplitude?
Of the latest 14 reported insider transactions in Amplitude (since May 8, 2025), 1 were purchases and 13 were sales.
How many shares of Amplitude are outstanding?
Amplitude has 103.9M shares outstanding, of which 95.0M are in the public float.