Flowserve Corporation
US ˙ NYSE ˙ US34354P1057

SecurityFLS / Flowserve Corporation
InstitutionCookson Peirce & Co Inc
Latest Disclosed Ownership350,689 shares
Latest Disclosed Value $ 25,779,149
Cookson Peirce & Co Inc reports 110.33% increase in ownership of FLS / Flowserve Corporation

On April 30, 2026 - Cookson Peirce & Co Inc filed a 13F-HR form disclosing ownership of 350,689 shares of Flowserve Corporation (US:FLS) valued at $25,779,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 166,736 shares of Flowserve Corporation. This represents a change in shares of 110.33% during the quarter. The current value of the position is $26,448,964 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)
2026-04-30 2026-03-31 13F FLOWSERVE COM 34354P105 350,689 183,953 110.33 25,779 122.85 1.0914
2026-02-11 2025-12-31 13F FLOWSERVE COM 34354P105 166,736 152,073 1,037.12 11,568 1,384.98 0.4792
2025-11-06 2025-09-30 13F FLOWSERVE COM 34354P105 14,663 14,663 779 0.0320
2025-05-13 2025-03-31 13F FLOWSERVE COM 34354P105 0 -20,541 -100.00 0 -100.00
2025-02-06 2024-12-31 13F FLOWSERVE COM 34354P105 20,541 7,357 55.80 1,182 73.42 0.0536
2024-11-12 2024-09-30 13F FLOWSERVE COM 34354P105 13,184 4,109 45.28 681 56.19 0.0319
2024-08-14 2024-06-30 13F FLOWSERVE COM 34354P105 9,075 1,271 16.29 437 0.0210
2024-04-23 2024-03-31 13F FLOWSERVE CS 34354P105 7,804 1,951 33.33 0 0.0190
2024-01-30 2023-12-31 13F/A-1 FLOWSERVE CS 34354P105 5,853 5,853 0 0.0146
2024-01-30 2023-12-31 13F FLOWSERVE CS 34354P105 5,853 5,853 0 0.0146
2019-02-07 2018-12-31 13F FLOWSERVE CS 34354P105 0 -8,800 -100.00 0 -100.00
2018-10-15 2018-09-30 13F FLOWSERVE CS 34354P105 8,800 -193,720 -95.65 481 -96.97 0.0386
2014-05-13 2014-03-31 13F FLOWSERVE CS 34354P105 202,520 -4,050 -1.96 15,865 -2.57 3.9733
2014-02-19 2013-12-31 13F FLOWSERVE CS 34354P105 206,570 -41,250 -16.65 16,284 5.45 4.3158
2013-10-29 2013-09-30 13F FLOWSERVE COM 34354P105 247,820 -1,930 -0.77 15,443 14.52 4.2736
2013-08-12 2013-06-30 13F FLOWSERVE COM 34354P105 249,750 249,750 13,485 3.9233
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.