진폭, Inc.
US ˙ NasdaqCM ˙ US03213A1043

SecurityAMPL / Amplitude, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership920,506 shares
Latest Disclosed Value $ 6,277,858
Morgan Stanley reports 34.27% increase in ownership of AMPL / Amplitude, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 920,506 shares of Amplitude, Inc. (US:AMPL) valued at $6,277,851 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 685,561 shares of Amplitude, Inc.. This represents a change in shares of 34.27% during the quarter. The current value of the position is $7,133,922 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMPLITUDE COM CL A 03213A104 920,506 234,945 34.27 6,278 -20.92 0.0004
2026-05-27 2025-12-31 13F/A-1 AMPLITUDE COM CL A 03213A104 685,561 -82,171 -10.70 7,939 -3.55 0.0005
2026-02-13 2025-12-31 13F AMPLITUDE COM CL A 03213A104 685,561 -82,171 7,939
2026-05-27 2025-09-30 13F/A-1 AMPLITUDE COM CL A 03213A104 767,732 -39,258 -4.86 8,230 -17.75 0.0005
2025-11-14 2025-09-30 13F AMPLITUDE COM CL A 03213A104 767,732 -39,258 8,230 0.0005
2025-08-15 2025-06-30 13F AMPLITUDE COM CL A 03213A104 806,990 112,579 16.21 10,007 41.41 0.0007
2025-05-15 2025-03-31 13F AMPLITUDE COM CL A 03213A104 694,411 -55,060 -7.35 7,076 -10.50 0.0005
2025-05-15 2024-12-31 13F/A-1 AMPLITUDE COM CL A 03213A104 749,471 -799,430 -51.61 7,907 -43.09 0.0006
2025-02-14 2024-12-31 13F AMPLITUDE COM CL A 03213A104 749,471 -799,430 7,907 0.0006
2025-05-14 2024-09-30 13F/A-2 AMPLITUDE COM CL A 03213A104 1,548,901 -1,361,421 -46.78 13,894 -46.36 0.0010
2025-02-14 2024-09-30 13F/A-1 AMPLITUDE COM CL A 03213A104 1,548,901 -1,361,421 13,894 0.0010
2024-11-14 2024-09-30 13F AMPLITUDE COM CL A 03213A104 1,548,901 -1,361,421 13,894 0.0001
2025-05-14 2024-06-30 13F/A-2 AMPLITUDE COM CL A 03213A104 2,910,322 2,491,019 594.09 25,902 467.76 0.0020
2024-10-17 2024-06-30 13F/A-1 AMPLITUDE COM CL A 03213A104 2,910,322 2,491,019 25,902 0.0020
2024-08-14 2024-06-30 13F AMPLITUDE COM CL A 03213A104 2,910,322 2,491,019 25,902 0.0020
2024-10-17 2024-03-31 13F/A-2 AMPLITUDE COM CL A 03213A104 419,303 -248,734 -37.23 4,562 -46.31 0.0004
2024-08-16 2024-03-31 13F/A-1 AMPLITUDE COM CL A 03213A104 419,303 -248,734 4,562 0.0000
2024-05-15 2024-03-31 13F AMPLITUDE COM CL A 03213A104 419,303 -248,734 4,562 0.0004
2024-08-16 2023-12-31 13F/A-1 AMPLITUDE COM CL A 03213A104 668,037 122,884 22.54 8,497 34.72 0.0007
2024-02-13 2023-12-31 13F AMPLITUDE COM CL A 03213A104 668,037 122,884 8,497 0.0007
2023-11-15 2023-09-30 13F AMPLITUDE COM CL A 03213A104 545,153 -201,899 -27.03 6,307 -23.24 0.0006
2023-08-14 2023-06-30 13F AMPLITUDE COM CL A 03213A104 747,052 267,539 55.79 8,218 37.75 0.0008
2023-05-15 2023-03-31 13F AMPLITUDE COM CL A 03213A104 479,513 293,412 157.66 5,965 165.35 0.0006
2023-02-14 2022-12-31 13F AMPLITUDE COM CL A 03213A104 186,101 -5,355 -2.80 2,248 -24.08 0.0003
2022-11-14 2022-09-30 13F AMPLITUDE COM CL A 03213A104 191,456 88,572 86.09 2,961 101.43 0.0004
2022-10-27 2022-06-30 13F/A-1 AMPLITUDE COM CL A 03213A104 102,884 53,748 109.39 1,470 62.43 0.0002
2022-08-15 2022-06-30 13F AMPLITUDE COM CL A 03213A104 102,884 53,748 1,470 0.0000
2022-10-27 2022-03-31 13F/A-1 AMPLITUDE COM CL A 03213A104 49,136 -947,346 -95.07 905 -98.28 0.0001
2022-05-13 2022-03-31 13F AMPLITUDE COM CL A 03213A104 49,136 -947,346 905 0.0001
2022-02-14 2021-12-31 13F AMPLITUDE COM CL A 03213A104 996,482 993,300 31,216.22 52,754 30,393.64 0.0065
2021-11-15 2021-09-30 13F AMPLITUDE COM CL A 03213A104 3,182 3,182 173 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.