FSS · Insider trading · 13F holders · Congress trades
Federal Signal Corp (FSS)
Who is buying and selling FSS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 32
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $3.3M
- Congress trades, 12 months
- 4
FSS at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 FSS insiders filed 2 sales worth $3.3M on SEC Form 4, and no open-market purchases.
- 32 13F filers hold FSS among their 50 largest positions, worth $933.9M combined. The biggest bets by portfolio weight are Congruence Capital, LLC (8.2%), Montanaro Asset Management Ltd (5.0%) and Pembroke Management, LTD (4.1%). In their latest 13Fs, 0 managers opened a new position and 8 added to one.
- Members of Congress have disclosed 4 FSS trades since 2026, 4 purchases and 0 sales in the past year; the latest was Gilbert Ray Cisneros, Jr. (D-CA), buying $1K–15K on Sep 21, 2026.
- FSS last closed at $115.21 on Oct 29, 2026.
FSS insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 FSS insiders filed 2 sales worth $3.3M on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 6, 2026 | Reichelderfer Brenda | Director | Sale | 6,070 | $131.02 | $795K | SEC |
| Aug 5, 2026 | Bonina Diane | VP, Gen'l Counsel & Secretary | Sale | 19,264 | $130.06 | $2.5M | SEC |
Who owns FSS? Hedge funds and superinvestors
32 13F filers hold FSS among their 50 largest positions, worth $933.9M combined. The biggest bets by portfolio weight are Congruence Capital, LLC (8.2%), Montanaro Asset Management Ltd (5.0%) and Pembroke Management, LTD (4.1%). In their latest 13Fs, 0 managers opened a new position and 8 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Wasatch Advisors LPAsset manager | 1.1% | $143.7M | 1,297,257 | -5.0% shares | Q3 2026 |
| GW&K Investment Management, LLCWealth manager | 0.9% | $119.0M | 926,454 | -3.3% shares | Q2 2026 |
| Conestoga Capital Advisors, LLCMutual fund manager | 2.0% | $92.1M | 716,591 | -16.8% shares | Q2 2026 |
| Van Berkom & Associates Inc.Institutional asset manager | 2.8% | $87.6M | 682,045 | -5.8% shares | Q2 2026 |
| Neumeier Poma Investment Counsel LLCInstitutional asset manager | 3.6% | $51.9M | 404,008 | +37.0% shares | Q2 2026 |
| Waratah Capital Advisors Ltd.Hedge fund | 3.6% | $46.3M | 360,200 | — | Q2 2026 |
| Global Alpha Capital Management Ltd.Institutional asset manager | 2.5% | $42.0M | 326,966 | -0.9% shares | Q2 2026 |
| Sandhill Capital Partners LLCWealth manager | 3.3% | $40.8M | 317,427 | — | Q2 2026 |
| Oberweis Asset Management Inc/Mutual fund manager | 0.7% | $34.6M | 269,084 | +0.5% shares | Q2 2026 |
| EULAV Asset ManagementMutual fund manager | 1.2% | $34.4M | 310,336 | +6.2% shares | Q3 2026 |
| Pembroke Management, LTDHedge fund | 4.1% | $33.0M | 297,616 | +5.0% shares | Q3 2026 |
| Congruence Capital, LLCInstitutional asset manager | 8.2% | $31.3M | 243,958 | +36.0% shares | Q2 2026 |
| ArrowMark Colorado Holdings LLCHedge fund | 1.2% | $29.4M | 228,974 | -63.3% shares | Q2 2026 |
| Aperture Investors, LLCHedge fund | 3.0% | $27.8M | 216,316 | +0.0% shares | Q2 2026 |
| Ranger Investment Management, L.P.Institutional asset manager | 1.5% | $23.1M | 179,428 | -6.4% shares | Q2 2026 |
| Dudley & Shanley, Inc.Wealth manager | 3.1% | $19.3M | 174,050 | +2.8% shares | Q3 2026 |
| Montanaro Asset Management LtdAsset manager | 5.0% | $15.7M | 122,531 | -0.5% shares | Q2 2026 |
| Carderock Capital Management IncWealth manager | 1.9% | $8.4M | 76,151 | +1.8% shares | Q3 2026 |
| 4D Advisors, LLCHedge fund | 3.2% | $8.4M | 65,000 | +30.0% shares | Q2 2026 |
| Alta Capital Management Llc/Wealth manager | 0.7% | $8.1M | 73,074 | -15.3% shares | Q3 2026 |
| Bullseye Asset Management LLCInstitutional asset manager | 3.0% | $5.8M | 45,257 | +35.5% shares | Q2 2026 |
| Grandeur Peak Global Advisors, LLCMutual fund manager | 1.3% | $5.6M | 43,766 | +62.0% shares | Q2 2026 |
| Summit Creek Advisors LLCInstitutional asset manager | 1.8% | $5.4M | 42,106 | — | Q2 2026 |
| Prospect Capital Advisors, LLCHedge fund | 2.3% | $5.0M | 39,300 | +30.3% shares | Q2 2026 |
| Kiker Wealth Management, LLCWealth manager | 1.0% | $2.5M | 19,622 | — | Q2 2026 |
| EDENTREE ASSET MANAGEMENT LtdAsset manager | 0.7% | $2.4M | 19,050 | +0.0% shares | Q2 2026 |
| Trail Ridge Investment Advisors, LLCWealth manager | 1.0% | $2.3M | 20,573 | +0.6% shares | Q3 2026 |
| Total Investment Management IncWealth manager | 0.2% | $2.0M | 18,364 | +0.0% shares | Q3 2026 |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka AkcyjnaAsset manager | 0.7% | $2.0M | 18,126 | -0.1% shares | Q3 2026 |
| Crown Advisors Management, Inc.Hedge fund | 1.1% | $1.9M | 15,000 | +0.0% shares | Q2 2026 |
The 30 largest of 32 positions, by value. Each manager counts with its latest 13F (Q3 2026: 10, Q2 2026: 22). Screen FSS in the grand portfolio →
FSS stock trades by members of Congress
Members of Congress have disclosed 4 FSS trades since 2026, 4 purchases and 0 sales in the past year; the latest was Gilbert Ray Cisneros, Jr. (D-CA), buying $1K–15K on Sep 21, 2026.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Oct 12, 2026 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Sep 21, 2026 | -2.5% |
| Apr 7, 2026 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Mar 9, 2026 | +5.7% |
| Mar 16, 2026 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Feb 26, 2026 | -4.6% |
| Mar 9, 2026 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Mar 2, 2026 | -6.2% |
2 members have traded FSS: Gilbert Ray Cisneros, Jr., Josh Gottheimer.
Analysis mentioning FSS
Posts from the blog that cover Federal Signal Corp, newest first.
FSS questions and answers
Are insiders buying FSS stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 FSS insiders filed 2 sales worth $3.3M on SEC Form 4, and no open-market purchases.
Which hedge funds own FSS?
32 13F filers hold FSS among their 50 largest positions, worth $933.9M combined. The biggest bets by portfolio weight are Congruence Capital, LLC (8.2%), Montanaro Asset Management Ltd (5.0%) and Pembroke Management, LTD (4.1%). In their latest 13Fs, 0 managers opened a new position and 8 added to one.
Has Congress traded FSS?
Members of Congress have disclosed 4 FSS trades since 2026, 4 purchases and 0 sales in the past year; the latest was Gilbert Ray Cisneros, Jr. (D-CA), buying $1K–15K on Sep 21, 2026.
Who is the largest holder of FSS?
Among 13F filers, Wasatch Advisors LP reports the largest FSS position, $143.7M (1,297,257 shares) in its Q3 2026 13F. The biggest bet by portfolio weight is Congruence Capital, LLC's: 8.2% of its portfolio.
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