Flowserve Corporation
Ownership
Ownership Structure
Who owns Flowserve Corporation (FLS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.3% of the shares are freely tradable; institutional investors hold 104.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.60 | 13,479,378 | +2.3 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.90 | 6,230,091 | +0.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.54 | 5,766,004 | +1.1 | 06/30/2026 |
| UBS Group AG | 4.44 | 5,649,681 | +17.8 | 06/30/2026 |
| D1 Capital Partners L.P. | 3.91 | 4,968,713 | -15.4 | 06/30/2026 |
| State Street Corp | 3.28 | 4,173,333 | +1.1 | 06/30/2026 |
| Fidelity International Ltd | 3.28 | 4,163,193 | +0.0 | 06/30/2026 |
| Nuveen, LLC | 2.68 | 3,411,142 | +14.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 4,527,795 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.15 | 4,003,939 | -1.5 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Hudson Susan Claire | Chief Legal Officer | 24,922 | 1,968,838 $ | Oct 1, 2026 | direct |
| Klopfer Matthew Carl | President, FPD | 8,694 | 686,826 $ | Sep 23, 2026 | direct |
| Ezzell Brian William | Chief Financial Officer | 6,149 | 485,771 $ | Oct 16, 2026 | direct |
| DeBiasio Alice Marie | President, FCD | 2,764 | 218,356 $ | Oct 29, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 29, 2026 | DeBiasio Alice Marie | President, FCD | Other | 1,794 | 70.84 | 127,087 |
| Oct 29, 2026 | DeBiasio Alice Marie | President, FCD | Other | 4,558 | 0.00 | – |
| Oct 16, 2026 | Ezzell Brian William | Chief Financial Officer | Other | 3,357 | 70.20 | 235,661 |
| Oct 16, 2026 | Ezzell Brian William | Chief Financial Officer | Other | 8,530 | 0.00 | – |
| Oct 1, 2026 | Hudson Susan Claire | Chief Legal Officer | Other | 33 | 73.12 | 2,413 |
| Sep 23, 2026 | Klopfer Matthew Carl | President, FPD | Other | 1,200 | 74.67 | 89,604 |
| Sep 23, 2026 | Klopfer Matthew Carl | President, FPD | Other | 3,049 | 0.00 | – |
| Sep 1, 2026 | Hudson Susan Claire | Chief Legal Officer | Other | 31 | 79.09 | 2,452 |
| Aug 3, 2026 | Hudson Susan Claire | Chief Legal Officer | Other | 48 | 75.99 | 3,648 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.