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Amplitude
AMPL

188 hedge funds and large institutions have $965M invested in Amplitude in 2025 Q2 according to their latest regulatory filings, with 35 funds opening new positions, 83 increasing their positions, 48 reducing their positions, and 40 closing their positions.

New
Increased
Maintained
Reduced
Closed

612% more call options, than puts

Call options by funds: $17.1M | Put options by funds: $2.4M

73% more repeat investments, than reductions

Existing positions increased: 83 | Existing positions reduced: 48

31% more capital invested

Capital invested by funds: $738M → $965M (+$227M)

3.7% more ownership

Funds ownership: 75.07% → 78.77% (+3.7%)

4% less funds holding

Funds holding: 195 → 188 (-7)

13% less first-time investments, than exits

New positions opened: 35 | Existing positions closed: 40

50% less funds holding in top 10

Funds holding in top 10: 8 → 4 (-4)

Holders
188
Holders Change
-7
Holders Change %
-3.59%
% of All Funds
2.48%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.05%
New
35
Increased
83
Reduced
48
Closed
40
Calls
$17.1M
Puts
$2.4M
Net Calls
+$14.7M
Net Calls Change
+$9.98M

Top Buyers

Rank Fund Capital Flow
1
AllianceBernstein
AllianceBernstein
Tennessee
+$43M
2
BlackRock
BlackRock
New York
+$22.1M
3
N
Nuveen
North Carolina
+$18.8M
4
Millennium Management
Millennium Management
New York
+$18.3M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$9.21M

Top Sellers

Rank Fund Capital Flow
1
BMC
Battery Management Corp
Massachusetts
-$45.4M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$43.5M
3
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$17.4M
4
Citadel Advisors
Citadel Advisors
Florida
-$7.28M
5
SM
Sunriver Management
Connecticut
-$5.53M
Name Holding Trade Value Shares
Change 		Change in
Stake
Wellington Management Group
51
Wellington Management Group
Massachusetts
$2.84M +$2.48M +229,370 New
SPPAM
52
Summit Partners Public Asset Management
Massachusetts
$2.79M +$2.43M +225,000 New
UBS AM
53
UBS AM
Illinois
$2.74M +$229K +21,184 +11%
CG
54
Circumference Group
Arkansas
$2.7M +$433K +40,000 +22%
PCM
55
Pathway Capital Management
California
$2.68M +$518K +47,912 +28%
AAP
56
Ardsley Advisory Partners
Connecticut
$2.6M +$811K +75,000 +56%
First Trust Advisors
57
First Trust Advisors
Illinois
$2.6M +$2.27M +209,620 New
AQR Capital Management
58
AQR Capital Management
Connecticut
$2.47M -$296K -27,322 -12%
Two Sigma Advisers
59
Two Sigma Advisers
New York
$2.31M +$1.66M +153,400 +463%
VOYA Investment Management
60
VOYA Investment Management
Georgia
$2.29M +$237K +21,899 +13%
Jane Street
61
Jane Street
New York
$2.29M -$1.43M -132,228 -42%
AG
62
Algert Global
California
$2.26M +$1.97M +182,440 New
VBFG
63
Vishria Bird Financial Group
Tennessee
$2.21M -$232K -21,482 -11%
Barclays
64
Barclays
United Kingdom
$2.18M +$786K +72,625 +70%
Principal Financial Group
65
Principal Financial Group
Iowa
$2.17M +$213K +19,649 +13%
SC
66
Savant Capital
Illinois
$2.1M +$232K +21,427 +14%
HSBC Holdings
67
HSBC Holdings
United Kingdom
$2.03M +$1.64M +151,552 +1,256%
Swiss National Bank
68
Swiss National Bank
Switzerland
$1.93M – – –
Susquehanna International Group
69
Susquehanna International Group
Pennsylvania
$1.78M +$468K +43,294 +43%
Dimensional Fund Advisors
70
Dimensional Fund Advisors
Texas
$1.7M -$2.49K -230 -0.2%
Deutsche Bank
71
Deutsche Bank
Germany
$1.61M +$18.9K +1,748 +1%
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$1.56M +$192K +17,717 +16%
WAM
73
Wilson Asset Management
Australia
$1.54M +$1.34M +123,849 New
EGM
74
Engineers Gate Manager
New York
$1.48M +$684K +63,271 +113%
QT
75
Quantbot Technologies
New York
$1.41M +$519K +47,992 +73%
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AMPL Hedge Fund Activity: Q2 2025 in Review

188 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Amplitude (AMPL) for Q2 2025, worth a combined $965M — up 31% from $738M a quarter earlier.

Sellers outnumbered buyers: 40 funds closed out of AMPL and 35 opened new positions — a net loss of 5 holders — while 48 trimmed existing stakes and 83 added.

The largest buyer was AllianceBernstein, adding an estimated $43M. The largest seller was Battery Management Corp, exiting entirely with an estimated $45.4M sold.

  • 188 institutional investors held Amplitude (AMPL) as of Q2 2025, down from 195 in Q1 2025.
  • Funds reported $965M of Amplitude stock for Q2 2025, up 31% quarter-over-quarter.
  • 35 funds opened new Amplitude positions in Q2 2025 and 40 closed out, a net change of -5 holders.
  • The largest Amplitude buyer in Q2 2025 was AllianceBernstein, an estimated $43M added.
  • The largest Amplitude seller in Q2 2025 was Battery Management Corp, an estimated $45.4M sold.

Based on aggregated 13F filings for Q2 2025.