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AMPLInformation TechnologyCommon Stock

Amplitude, Inc (Class A)

Held by 7 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 03213A104 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide

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In plain English: 7 of the investors we track own this stock. In the latest quarter, 3 of them bought more of it and 6 sold some or all of theirs (2 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Managers holding
7
0 vs last quarter (like-for-like)
Total value held
$45.32M
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.0%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
-$10.22M
-18.4% vs last quarter
Net shares bought
-2.2M
Est. net flow -$16.70M
Quarter activity
3 bought · 6 sold
2 new · 2 sold out

Tracked capital in this stock

Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).

Chart: Tracked capital in this stock

Aggregate buying and selling

Net share change reported each quarter

Chart: Aggregate buying and selling

Who owns AMPL?

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Who owns AMPL? — Q2 2026

Holders ranked by position size, with each one's quarter-over-quarter change.

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

# Manager Fund Shares Value ↓ % of their portfolio QoQ Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
1 Baillie Gifford Baillie Gifford & Co 1.78M $13.61M 0.0% Reduced -854.6K -32.4% -$6.54M
2 Steve Cohen Point72 Asset Management 1.41M $10.78M 0.0% Reduced -1.0M -41.5% -$7.66M
3 Chuck Royce Royce & Associates 1.05M $8.04M 0.1% New +1.1M — +$8.04M
4 Ken Griffin Citadel Advisors 872.87K $6.68M 0.0% Added +836.7K +2312.4% +$6.40M
5 Two Sigma Two Sigma Investments 416.22K $3.18M 0.0% Reduced -275.4K -39.8% -$2.11M
6 Israel Englander Millennium Management 383.77K $2.94M 0.0% Reduced -1.6M -81.1% -$12.61M
7 David Shaw D.E. Shaw & Co. 11.90K $91.03K 0.0% New +11.9K — +$91.03K

Sold out completely this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Manager Fund Shares sold Value last quarter ↓
Light Street Capital Light Street Capital Management -292.8K $2.00M
Jim Simons Renaissance Technologies -47.0K $320.75K

Politician trades

Politician trades in AMPL

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

No politician trades match these filters.