Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership32,821 shares
Latest Disclosed Value $ 2,412,679
Summit Trail Advisors, Llc reports 162.65% increase in ownership of FLS / Flowserve Corporation

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 32,821 shares of Flowserve Corporation (US:FLS) valued at $2,412,672 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,496 shares of Flowserve Corporation. This represents a change in shares of 162.65% during the quarter. The current value of the position is $2,475,360 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)
2026-05-12 2026-03-31 13F FLOWSERVE COM 34354P105 32,821 20,325 162.65 2,413 178.20 0.0346
2026-02-17 2025-12-31 13F FLOWSERVE COM 34354P105 12,496 -41,818 -76.99 868 -69.96 0.0150
2025-11-14 2025-09-30 13F FLOWSERVE COM 34354P105 54,314 14,137 35.19 2,887 37.30 0.0399
2025-08-14 2025-06-30 13F FLOWSERVE COM 34354P105 40,177 40,177 2,103 0.0361
2021-02-16 2020-12-31 13F Emerson Elec Co Com Equity 34354P105 0 -3,302 -100.00 0 -100.00
2020-11-16 2020-09-30 13F Emerson Elec Co Com Equity 34354P105 3,302 3,302 247 0.0478
2018-08-10 2018-06-30 13F FLOWSERVE CORP COM EQUITY 34354P105 0 -20,397 -100.00 0 -100.00
2018-05-21 2018-03-31 13F FLOWSERVE CORP COM EQUITY 34354P105 20,397 19,989 4,899.26 20 11.11 0.0031
2018-02-14 2017-12-31 13F FLOWSERVE CORP COM EQUITY 34354P105 408 408 18 0.0023
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.