Federal Signal Corporation
Ownership
Ownership Structure
Who owns Federal Signal Corporation (FSS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.5% of the shares are freely tradable; institutional investors hold 102.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.76 | 9,619,456 | +6.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.73 | 3,495,003 | -4.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.34 | 2,649,644 | -2.5 | 06/30/2026 |
| State Street Corp | 4.01 | 2,446,720 | +6.0 | 06/30/2026 |
| Capital World Investors | 3.68 | 2,244,770 | +2.7 | 06/30/2026 |
| Geode Capital Management, LLC | 3.20 | 1,953,082 | +8.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.96 | 3,636,159 | +0.0 | 09/30/2026 |
| American Funds SMALLCAP World A | 4.15 | 2,535,602 | +7.3 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.18 | 1,939,430 | +5.1 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.59 | 1,578,403 | -1.1 | 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 |
|---|---|---|---|---|---|
| Reichelderfer Brenda | Director | 45,888 | 5,171,578 $ | Aug 4, 2026 | direct |
| Bonina Diane | VP, Gen'l Counsel & Secretary | 15,789 | 1,779,420 $ | Aug 4, 2026 | direct |
| Maue Richard A | Director | 3,527 | 397,493 $ | Sep 25, 2026 | direct |
| Vaillancourt Eric A. | Director | 1,519 | 171,191 $ | Sep 25, 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 |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | Maue Richard A | Director | Other | 108 | 0.00 | – |
| Sep 25, 2026 | Vaillancourt Eric A. | Director | Other | 104 | 0.00 | – |
| Aug 4, 2026 | Reichelderfer Brenda | Director | Sell | 6,070 | 131.02 | 795,273 |
| Aug 4, 2026 | Reichelderfer Brenda | Director | Other | 7,650 | 0.00 | – |
| Aug 4, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Sell | 6,350 | 130.41 | 828,115 |
| Aug 4, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Other | 6,450 | 51.81 | 334,175 |
| Aug 4, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Sell | 100 | 131.05 | 13,105 |
| Aug 4, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Sell | 8,306 | 130.45 | 1,083,533 |
| Aug 4, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Other | 8,406 | 35.80 | 300,935 |
| Aug 3, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Sell | 4,408 | 128.75 | 567,528 |
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.