J.P. Morgan Exchange-Traded Fund Trust - JPMorgan Ultra-Short Municipal Income ETF
US ˙ ARCA ˙ US46641Q6540

SecurityJMST / J.P. Morgan Exchange-Traded Fund Trust - JPMorgan Ultra-Short Municipal Income ETF
InstitutionPecaut & Co.
Latest Disclosed Ownership43,937 shares
Latest Disclosed Value $ 2,239,925
Pecaut & Co. reports 24.71% increase in ownership of JMST / J.P. Morgan Exchange-Traded Fund Trust - JPMorgan Ultra-Short Municipal Income ETF

On May 11, 2026 - Pecaut & Co. filed a 13F-HR form disclosing ownership of 43,937 shares of J.P. Morgan Exchange-Traded Fund Trust - JPMorgan Ultra-Short Municipal Income ETF (US:JMST) valued at $2,239,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 35,232 shares of J.P. Morgan Exchange-Traded Fund Trust - JPMorgan Ultra-Short Municipal Income ETF. This represents a change in shares of 24.71% during the quarter. The current value of the position is $2,236,393 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)
2026-05-11 2026-03-31 13F J P MORGAN EXCHANGE TRADED F ULTRA SHT MUNCPL 46641Q654 43,937 8,705 24.71 2,240 24.80 0.7273
2026-02-10 2025-12-31 13F J P MORGAN EXCHANGE TRADED F ULTRA SHT MUNCPL 46641Q654 35,232 115 0.33 1,795 0.11 0.5790
2025-11-03 2025-09-30 13F J P MORGAN EXCHANGE TRADED F ULTRA SHT MUNCPL 46641Q654 35,117 -225 -0.64 1,792 -0.39 0.5758
2025-08-14 2025-06-30 13F J P MORGAN EXCHANGE TRADED F ULTRA SHT MUNCPL 46641Q654 35,342 35,342 1,800 0.5974
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.