Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership57,767 shares
Latest Disclosed Value $ 4,247,030
Janus Henderson Group Plc ownership in FLS / Flowserve Corporation

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 57,767 shares of Flowserve Corporation (US:FLS) valued at $4,246,452 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 57,767 shares of Flowserve Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $4,356,787 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)
2026-05-18 2026-03-31 13F/A-1 FLOWSERVE COM 34354P105 57,767 0 0.00 4,247 5.96 0.0007
2026-05-15 2026-03-31 13F FLOWSERVE COM 34354P105 57,767 0 0.00 4,247 5.96 0.0008
2026-02-17 2025-12-31 13F FLOWSERVE COM 34354P105 57,767 0 0.00 4,009 30.55 0.0018
2025-11-14 2025-09-30 13F FLOWSERVE COM 34354P105 57,767 0 0.00 3,071 1.52 0.0014
2025-08-14 2025-06-30 13F FLOWSERVE COM 34354P105 57,767 0 0.00 3,025 7.42 0.0015
2025-05-15 2025-03-31 13F FLOWSERVE COM 34354P105 57,767 0 0.00 2,816 -15.29 0.0015
2025-02-14 2024-12-31 13F FLOWSERVE COM 34354P105 57,767 2,100 3.77 3,324 15.50 0.0017
2024-11-14 2024-09-30 13F FLOWSERVE COM 34354P105 55,667 -7,100 -11.31 2,878 -4.70 0.0015
2024-08-14 2024-06-30 13F FLOWSERVE COM 34354P105 62,767 -676 -1.07 3,019 4.21 0.0016
2024-05-15 2024-03-31 13F FLOWSERVE COM 34354P105 63,443 1 0.00 2,898 10.78 0.0016
2024-02-14 2023-12-31 13F FLOWSERVE COM 34354P105 63,442 -102 -0.16 2,615 3.48 0.0016
2023-11-14 2023-09-30 13F FLOWSERVE COM 34354P105 63,544 4 0.01 2,527 7.08 0.0017
2023-08-14 2023-06-30 13F FLOWSERVE COM 34354P105 63,540 5,831 10.10 2,360 20.35 0.0015
2023-05-15 2023-03-31 13F FLOWSERVE COM 34354P105 57,709 31,541 120.53 1,962 144.51 0.0013
2023-02-14 2022-12-31 13F FLOWSERVE COM 34354P105 26,168 3,499 15.44 803 45.55 0.0006
2023-01-13 2022-09-30 13F/A-1 FLOWSERVE COM 34354P105 22,669 59 0.26 551 -14.84 0.0004
2022-11-14 2022-09-30 13F FLOWSERVE COM 34354P105 22,669 59 551 0.0001
2022-08-15 2022-06-30 13F FLOWSERVE COM 34354P105 22,610 -956 -4.06 647 -23.61 0.0004
2022-05-16 2022-03-31 13F FLOWSERVE COM 34354P105 23,566 912 4.03 847 22.22 0.0004
2022-02-14 2021-12-31 13F FLOWSERVE COM 34354P105 22,654 9,503 72.26 693 51.97 0.0003
2021-11-16 2021-09-30 13F FLOWSERVE COM 34354P105 13,151 13,151 456 0.0002
2020-11-16 2020-09-30 13F FLOWSERVE COM 34354P105 0 -15,402 -100.00 0 -100.00
2020-08-14 2020-06-30 13F FLOWSERVE COM 34354P105 15,402 -23,627 -60.54 439 -52.90 0.0002
2020-05-14 2020-03-31 13F FLOWSERVE COM 34354P105 39,029 -103,593 -72.63 932 -86.87 0.0006
2020-02-18 2019-12-31 13F FLOWSERVE COM 34354P105 142,622 -329,032 -69.76 7,099 -67.78 0.0036
2019-11-14 2019-09-30 13F FLOWSERVE COM 34354P105 471,654 -44,973 -8.71 22,031 -19.07 0.0119
2019-07-31 2019-06-30 13F FLOWSERVE COM 34354P105 516,627 16,990 3.40 27,221 20.69 0.0148
2019-04-30 2019-03-31 13F FLOWSERVE COM 34354P105 499,637 -494,756 -49.75 22,554 -40.34 0.0125
2019-02-06 2018-12-31 13F FLOWSERVE COM 34354P105 994,393 952,650 2,282.18 37,807 1,556.02 0.0241
2018-11-09 2018-09-30 13F FLOWSERVE COM 34354P105 41,743 1,953 4.91 2,283 41.98 0.0012
2018-08-10 2018-06-30 13F FLOWSERVE COM 34354P105 39,790 -619,892 -93.97 1,608 -94.37 0.0009
2018-05-14 2018-03-31 13F FLOWSERVE COM 34354P105 659,682 60,435 10.09 28,584 13.22 0.0168
2018-03-12 2017-12-31 13F/A-1 FLOWSERVE COM 34354P105 599,247 11,376 1.94 25,246 0.83 0.0155
2018-02-09 2017-12-31 13F FLOWSERVE COM 34354P105 599,247 11,376 25,246
2017-11-14 2017-09-30 13F FLOWSERVE COM 34354P105 587,871 4,934 0.85 25,038 -7.49 0.0160
2017-08-17 2017-06-30 13F/A-1 FLOWSERVE COM 34354P105 582,937 558,723 2,307.44 27,066 2,209.39 0.0184
2017-08-14 2017-06-30 13F FLOWSERVE COM 34354P105 582,937 558,723 27,066
2017-05-03 2017-03-31 13F FLOWSERVE COM 34354P105 24,214 900 3.86 1,172 4.64 0.0082
2017-01-30 2016-12-31 13F FLOWSERVE COM 34354P105 23,314 2,200 10.42 1,120 10.02 0.0083
2016-10-24 2016-09-30 13F FLOWSERVE COM 34354P105 21,114 0 0.00 1,018 6.71 0.0075
2016-07-29 2016-06-30 13F FLOWSERVE COM 34354P105 21,114 0 0.00 954 1.71 0.0079
2016-05-12 2016-03-31 13F FLOWSERVE COM 34354P105 21,114 0 0.00 938 5.63 0.0076
2016-02-03 2015-12-31 13F FLOWSERVE COM 34354P105 21,114 0 0.00 888 2.30 0.0071
2015-11-16 2015-09-30 13F FLOWSERVE COM 34354P105 21,114 0 0.00 868 -21.94 0.0076
2015-08-17 2015-06-30 13F FLOWSERVE COM 34354P105 21,114 0 0.00 1,112 -6.79 0.0087
2015-06-02 2015-03-31 13F/A-1 FLOWSERVE COM 34354P105 21,114 0 0.00 1,193 -5.54 0.0092
2015-05-15 2015-03-31 13F FLOWSERVE COM 34354P105 21,114 1,193
2015-02-12 2014-12-31 13F FLOWSERVE COM 34354P105 21,114 0 0.00 1,263 -15.18 0.0091
2014-11-12 2014-09-30 13F FLOWSERVE COM 34354P105 21,114 0 0.00 1,489 -5.16 0.0140
2014-08-13 2014-06-30 13F FLOWSERVE COM 34354P105 21,114 2,081 10.93 1,570 5.30 0.0147
2014-05-08 2014-03-31 13F FLOWSERVE COM 34354P105 19,033 1,324 7.48 1,491 6.73 0.0145
2014-01-14 2013-12-31 13F FLOWSERVE COM 34354P105 17,709 0 0.00 1,397 26.43 0.0141
2013-11-12 2013-09-30 13F FLOWSERVE COM 34354P105 17,709 0 0.00 1,105 14.27 0.0122
2013-08-15 2013-06-30 13F FLOWSERVE COM 34354P105 17,709 17,709 967 0.0113
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.