Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership6,331 shares
Latest Disclosed Value $ 465,396
Advisory Services Network, LLC reports 5.01% increase in ownership of FLS / Flowserve Corporation

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 6,331 shares of Flowserve Corporation (US:FLS) valued at $465,392 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,029 shares of Flowserve Corporation. This represents a change in shares of 5.01% during the quarter. The current value of the position is $477,484 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.

Upgrade to unlock premium data and export to Excel .

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 CORP COM Stock 34354P105 6,331 302 5.01 465 11.24 0.0043
2026-02-17 2025-12-31 13F FLOWSERVE CORP COM Stock 34354P105 6,029 -96 -1.57 418 28.62 0.0059
2025-11-18 2025-09-30 13F FLOWSERVE Stock 34354P105 6,125 248 4.22 325 -1.22 0.0048
2025-08-19 2025-06-30 13F FLOWSERVE Stock 34354P105 5,877 49 0.84 329 15.85 0.0053
2025-05-15 2025-03-31 13F FLOWSERVE Stock 34354P105 5,828 36 0.62 285 -14.71 0.0055
2025-02-13 2024-12-31 13F FLOWSERVE Stock 34354P105 5,792 1,097 23.37 333 48.00 0.0062
2024-11-14 2024-09-30 13F FLOWSERVE Stock 34354P105 4,695 0 0.00 226 0.00 0.0047
2024-08-13 2024-06-30 13F FLOWSERVE Stock 34354P105 4,695 19 0.41 226 5.63 0.0047
2024-05-06 2024-03-31 13F FLOWSERVE Stock 34354P105 4,676 346 7.99 214 19.66 0.0047
2024-02-09 2023-12-31 13F FLOWSERVE Stock 34354P105 4,330 4,330 178 0.0044
2023-08-09 2023-06-30 13F FLOWSERVE Stock 34354P105 0 -5,100 -100.00 0 -100.00
2023-05-17 2023-03-31 13F FLOWSERVE Stock 34354P105 5,100 400 8.51 173 20.14 0.0048
2023-02-13 2022-12-31 13F FLOWSERVE Stock 34354P105 4,700 4,700 144 0.0044
2022-08-02 2022-06-30 13F FLOWSERVE Stock 34354P105 0 -6,350 -100.00 0 -100.00
2022-05-23 2022-03-31 13F FLOWSERVE Stock 34354P105 6,350 6,350 228 0.0067
2021-11-05 2021-09-30 13F FLOWSERVE Stock 34354P105 0 -5,400 -100.00 0 -100.00
2021-08-12 2021-06-30 13F FLOWSERVE Stock 34354P105 5,400 5,400 218 0.0069
2021-05-24 2021-03-31 13F FLOWSERVE Stock 34354P105 0 -3,208 -100.00 0 -100.00
2021-02-09 2020-12-31 13F FLOWSERVE Stock 34354P105 3,208 281 9.60 118 47.50 0.0047
2020-11-16 2020-09-30 13F FLOWSERVE Stock 34354P105 2,927 2,927 -8.76 80 -32.20 0.0038
2020-08-10 2020-06-30 13F FLOWSERVE Stock 34354P105 0 -181 -100.00 0 -100.00
2020-05-15 2020-03-31 13F FLOWSERVE Stock 34354P105 181 181 4 0.0003
2019-08-01 2019-06-30 13F FLOWSERVE Stock 34354P105 0 -735 -100.00 0 -100.00
2019-05-20 2019-03-31 13F FLOWSERVE Stock 34354P105 735 0 0.00 33 17.86 0.0023
2019-02-15 2018-12-31 13F FLOWSERVE Stock 34354P105 735 -108 -12.81 28 -39.13 0.0024
2018-11-02 2018-09-30 13F FLOWSERVE Stock 34354P105 843 -64 -7.06 46 17.95 0.0034
2018-07-27 2018-06-30 13F FLOWSERVE Stock 34354P105 907 0 0.00 39 0.00 0.0030
2018-04-23 2018-03-31 13F FLOWSERVE Stock 34354P105 907 781 619.84 39 680.00 0.0031
2018-02-08 2017-12-31 13F FLOWSERVE Stock 34354P105 126 0 0.00 5 0.00 0.0004
2017-10-12 2017-09-30 13F FLOWSERVE Stock 34354P105 126 -35 -21.74 5 -28.57 0.0006
2017-08-17 2017-06-30 13F FLOWSERVE CORP COM Stock 34354P105 161 11 7.33 7 0.00 0.0009
2017-04-28 2017-03-31 13F FLOWSERVE CORP COM Stock 34354P105 150 -5,663 -97.42 7 -98.46 0.0010
2014-04-09 2014-03-31 13F FLOWSERVE CORP COM Stock 34354P105 5,813 5,813 455 0.2346
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.