Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership1,291,043 shares
Latest Disclosed Value $ 94,904,788
Morgan Stanley reports 8.72% decrease in ownership of FLS / Flowserve Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,291,043 shares of Flowserve Corporation (US:FLS) valued at $94,904,571 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,414,342 shares of Flowserve Corporation. This represents a change in shares of -8.72% during the quarter. The current value of the position is $97,370,463 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 FLOWSERVE COM 34354P105 1,291,043 -123,299 -8.72 94,905 -3.28 0.0057
2026-05-27 2025-12-31 13F/A-1 FLOWSERVE COM 34354P105 1,414,342 -122,686 -7.98 98,127 20.14 0.0059
2026-02-13 2025-12-31 13F FLOWSERVE COM 34354P105 1,414,342 -122,686 98,127 0.0059
2026-05-27 2025-09-30 13F/A-1 FLOWSERVE COM 34354P105 1,537,028 -153,844 -9.10 81,678 -7.73 0.0049
2025-11-14 2025-09-30 13F FLOWSERVE COM 34354P105 1,537,028 -153,844 81,678 0.0049
2025-08-15 2025-06-30 13F FLOWSERVE COM 34354P105 1,690,872 366,651 27.69 88,517 36.86 0.0058
2025-05-15 2025-03-31 13F FLOWSERVE COM 34354P105 1,324,221 138,958 11.72 64,675 -5.14 0.0046
2025-05-15 2024-12-31 13F/A-1 FLOWSERVE COM 34354P105 1,185,263 318,965 36.82 68,176 52.25 0.0048
2025-02-14 2024-12-31 13F FLOWSERVE COM 34354P105 1,185,263 318,965 68,176 0.0048
2025-05-14 2024-09-30 13F/A-2 FLOWSERVE COM 34354P105 866,298 -272,179 -23.91 44,779 -18.23 0.0032
2025-02-14 2024-09-30 13F/A-1 FLOWSERVE COM 34354P105 866,298 -272,179 44,779 0.0032
2024-11-14 2024-09-30 13F FLOWSERVE COM 34354P105 866,298 -272,179 44,779 0.0032
2025-05-14 2024-06-30 13F/A-2 FLOWSERVE COM 34354P105 1,138,477 31,429 2.84 54,761 8.29 0.0042
2024-10-17 2024-06-30 13F/A-1 FLOWSERVE COM 34354P105 1,138,477 31,429 54,761 0.0042
2024-08-14 2024-06-30 13F FLOWSERVE COM 34354P105 1,138,477 31,429 54,761 0.0042
2024-10-17 2024-03-31 13F/A-2 FLOWSERVE COM 34354P105 1,107,048 141,910 14.70 50,570 27.11 0.0041
2024-08-16 2024-03-31 13F/A-1 FLOWSERVE COM 34354P105 1,107,048 141,910 50,570 0.0005
2024-05-15 2024-03-31 13F FLOWSERVE COM 34354P105 1,107,048 141,910 50,570 0.0041
2024-08-16 2023-12-31 13F/A-1 FLOWSERVE COM 34354P105 965,138 136,881 16.53 39,783 20.78 0.0035
2024-02-13 2023-12-31 13F FLOWSERVE COM 34354P105 965,138 136,881 39,783 0.0035
2023-11-15 2023-09-30 13F FLOWSERVE COM 34354P105 828,257 203,153 32.50 32,940 41.84 0.0033
2023-08-14 2023-06-30 13F FLOWSERVE COM 34354P105 625,104 -224,928 -26.46 23,223 -19.65 0.0023
2023-05-15 2023-03-31 13F FLOWSERVE COM 34354P105 850,032 -61,911 -6.79 28,901 3.30 0.0031
2023-02-14 2022-12-31 13F FLOWSERVE COM 34354P105 911,943 69,405 8.24 27,978 36.66 0.0032
2022-11-14 2022-09-30 13F FLOWSERVE COM 34354P105 842,538 217,711 34.84 20,473 14.44 0.0028
2022-10-27 2022-06-30 13F/A-1 FLOWSERVE COM 34354P105 624,827 -340,294 -35.26 17,889 -48.37 0.0023
2022-08-15 2022-06-30 13F FLOWSERVE COM 34354P105 624,827 -340,294 17,889 0.0023
2022-10-27 2022-03-31 13F/A-1 FLOWSERVE COM 34354P105 965,121 411,183 74.23 34,649 104.42 0.0047
2022-05-13 2022-03-31 13F FLOWSERVE COM 34354P105 965,121 411,183 34,649 0.0047
2022-02-14 2021-12-31 13F FLOWSERVE COM 34354P105 553,938 58,048 11.71 16,950 -1.41 0.0021
2021-11-15 2021-09-30 13F FLOWSERVE COM 34354P105 495,890 100,336 25.37 17,193 7.80 0.0023
2021-08-23 2021-06-30 13F/A-1 FLOWSERVE COM 34354P105 395,554 258,039 187.64 15,949 198.89 0.0021
2021-08-16 2021-06-30 13F FLOWSERVE COM 34354P105 395,554 258,039 15,949 0.0004
2021-05-17 2021-03-31 13F FLOWSERVE COM 34354P105 137,515 -14,637 -9.62 5,336 -4.82 0.0008
2021-02-16 2020-12-31 13F FLOWSERVE COM 34354P105 152,152 38,716 34.13 5,606 81.07 0.0009
2020-11-13 2020-09-30 13F FLOWSERVE COM 34354P105 113,436 -23,064 -16.90 3,096 -20.47 0.0006
2020-08-14 2020-06-30 13F FLOWSERVE COM 34354P105 136,500 -510,308 -78.90 3,893 -74.81 0.0009
2020-05-26 2020-03-31 13F/A-1 FLOWSERVE COM 34354P105 646,808 395,572 157.45 15,452 23.58 0.0042
2020-05-15 2020-03-31 13F FLOWSERVE COM 34354P105 646,808 395,572 15,452 1,187.0357
2020-02-14 2019-12-31 13F FLOWSERVE COM 34354P105 251,236 179,475 250.10 12,504 273.14 0.0029
2019-11-14 2019-09-30 13F FLOWSERVE COM 34354P105 71,761 -20,674 -22.37 3,351 -31.21 0.0009
2019-08-14 2019-06-30 13F FLOWSERVE COM 34354P105 92,435 -259 -0.28 4,871 16.42 0.0013
2019-05-15 2019-03-31 13F FLOWSERVE COM 34354P105 92,694 -413,080 -81.67 4,184 -78.24 0.0012
2019-02-14 2018-12-31 13F FLOWSERVE COM 34354P105 505,774 10,898 2.20 19,230 -28.95 0.0058
2019-04-23 2018-09-30 13F/A-2 FLOWSERVE COM 34354P105 494,876 339,612 218.73 27,065 331.45 0.0068
2018-11-20 2018-09-30 13F/A-1 FLOWSERVE COM 34354P105 494,876 0 27,065 0.0068
2018-11-14 2018-09-30 13F FLOWSERVE COM 34354P105 494,876 339,612 27,065
2019-04-23 2018-06-30 13F/A-1 FLOWSERVE COM 34354P105 155,264 -130,528 -45.67 6,273 -49.34 0.0017
2018-08-14 2018-06-30 13F FLOWSERVE COM 34354P105 155,264 -130,528 6,273
2019-04-23 2018-03-31 13F/A-1 FLOWSERVE COM 34354P105 285,792 -227,455 -44.32 12,383 -42.73 0.0034
2018-05-14 2018-03-31 13F FLOWSERVE COM 34354P105 285,792 -227,455 12,383
2019-04-23 2017-12-31 13F/A-1 FLOWSERVE COM 34354P105 513,247 305,030 146.50 21,623 143.80 0.0059
2018-02-14 2017-12-31 13F FLOWSERVE COM 34354P105 513,247 305,030 21,623
2017-11-14 2017-09-30 13F FLOWSERVE COM 34354P105 208,217 -285,758 -57.85 8,869 -61.33 0.0027
2017-08-11 2017-06-30 13F FLOWSERVE COM 34354P105 493,975 279,250 130.05 22,936 120.60 0.0069
2017-05-22 2017-03-31 13F/A-1 FLOWSERVE COM 34354P105 214,725 66,632 44.99 10,397 46.11 0.0032
2017-05-12 2017-03-31 13F FLOWSERVE COM 34354P105 214,725 10,397
2017-02-22 2016-12-31 13F/A-1 FLOWSERVE COM 34354P105 148,093 2,066 1.41 7,116 1.01 0.0023
2017-02-13 2016-12-31 13F FLOWSERVE COM 34354P105 148,093 7,116
2016-11-10 2016-09-30 13F FLOWSERVE COM 34354P105 146,027 -208,877 -58.85 7,045 -56.05 0.0024
2016-08-12 2016-06-30 13F FLOWSERVE COM 34354P105 354,904 176,343 98.76 16,031 102.18 0.0058
2016-05-12 2016-03-31 13F FLOWSERVE COM 34354P105 178,561 -38,242 -17.64 7,929 -13.09 0.0031
2016-02-09 2015-12-31 13F FLOWSERVE COM 34354P105 216,803 89,612 70.45 9,123 74.34 0.0033
2016-02-08 2015-09-30 13F/A-1 FLOWSERVE COM 34354P105 127,191 -116,577 -47.82 5,233 -59.24 0.0019
2015-11-09 2015-09-30 13F FLOWSERVE COM 34354P105 127,191 5,233
2015-08-12 2015-06-30 13F FLOWSERVE COM 34354P105 243,768 33,826 16.11 12,837 8.24 0.0044
2015-05-14 2015-03-31 13F FLOWSERVE COM 34354P105 209,942 -229,307 -52.20 11,860 -54.87 0.0044
2015-02-13 2014-12-31 13F FLOWSERVE COM 34354P105 439,249 36,148 8.97 26,280 -7.55 0.0096
2014-12-16 2014-09-30 13F/A-1 FLOWSERVE COM 34354P105 403,101 -225,130 -35.84 28,426 -42.24 0.0109
2014-11-14 2014-09-30 13F FLOWSERVE COM 34354P105 403,101 28,426
2014-05-13 2014-03-31 13F FLOWSERVE COM 34354P105 628,231 352,632 127.95 49,216 126.56 0.0206
2014-02-13 2013-12-31 13F FLOWSERVE COM 34354P105 275,599 -69,813 -20.21 21,723 0.80 0.0092
2013-11-13 2013-09-30 13F FLOWSERVE CORP COM ST COM 34354P105 345,412 -356,828 -50.81 21,550 -43.18 0.0102
2013-08-08 2013-06-30 13F FLOWSERVE CORP COM ST COM 34354P105 702,240 702,240 37,927 0.0191
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.