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AMPL · Amplitude, Inc.

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$12.87 +0.04 (+0.27%)
Market Cap
$1.57B
Shares
124.92M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 204
Total Value: $621,082,717
Total Shares: 81,187,368

Institutional Ownership Trend

20 quarters

Holder Concentration

Across 204 13F filers · Δ vs Mar 31, 2026
Top Holder
13.7%
Sep 2023 → Jun 2026 · range 12.2% – 16.3%
+0.4 pts
Top 5
45.7%
Sep 2023 → Jun 2026 · range 41.0% – 59.8%
+4.4 pts
Top 10
60.5%
Sep 2023 → Jun 2026 · range 56.3% – 78.3%
+3.7 pts
HHI
552
Sep 2023 → Jun 2026 · range 492 – 833
Broadly held+45

Quarterly Activity

vs Mar 31, 2026
New
36
Increased
82
Decreased
62
Sold Out
50
Unchanged
24
Holder count: -14
Institutional value: +7.9%
Shares held: -3.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 212
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1866692 CUSIP 03213A104 13F (30d) 193 filings 190 filers Visit website Investor relations