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Federal Signal Corporation (FSS) institutional ownership

Latest close $117.36 Jul 10, 2026
Market cap$7.7B 52-week range SectorIndustrials
Funds holding · Q1 2026
420
reported FSS position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net sold $76M
230 buyers · 190 sellers

Federal Signal Corporation (FSS) price and institutional activity

Dates

Q1 2026

$546M bought by 230 investors
Vaughan Nelson Investment Management, L.P.$60MGw&k Investment Management, LLC$44M +228 more
$622M sold by 190 investors
Invesco Ltd.-$166MNorges-$102M +188 more
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Bought Sold Totals per quarter; hover a bar for the names.

Federal Signal Corporation (FSS) institutional activity · 420

Investor Type Est. change Change Δ Own Date
Invesco Ltd. · Reduced −$166M
Change −1.5M Δ Own −67.7% Date Q1 2026
Invesco Ltd. Reduced· Q1 2026 −$166M −1.5M −67.7% Q1 2026
Norges · Exited −$102M
Change −905K Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −$102M −905K −100.0% Q1 2026
Vaughan Nelson Investment Management, L.P. · New +$60M
Change +534K Date Q1 2026
Vaughan Nelson Investment Management, L.P. New· Q1 2026 +$60M +534K Q1 2026
Gw&k Investment Management, LLC · Added +$44M
Change +393K Date Q1 2026
Gw&k Investment Management, LLC Added· Q1 2026 +$44M +393K Q1 2026
Greenvale Capital LLP · New +$29M
Change +255K Date Q1 2026
Greenvale Capital LLP New· Q1 2026 +$29M +255K Q1 2026
Wasatch Advisors LP · Reduced −$21M
Change −190K Date Q1 2026
Wasatch Advisors LP Reduced· Q1 2026 −$21M −190K Q1 2026
Congruence Capital, LLC · New +$20M
Change +179K Date Q1 2026
Congruence Capital, LLC New· Q1 2026 +$20M +179K Q1 2026
Capital Research Global Investors · New +$20M
Change +177K Date Q1 2026
Capital Research Global Investors New· Q1 2026 +$20M +177K Q1 2026
Capital World Investors · Reduced −$20M
Change −177K Date Q1 2026
Capital World Investors Reduced· Q1 2026 −$20M −177K Q1 2026
Tudor Investment Corp Et Al · Reduced −$19M
Change −169K Date Q1 2026
Tudor Investment Corp Et Al Reduced· Q1 2026 −$19M −169K Q1 2026
Pinestone Asset Management Inc. · Reduced −$18M
Change −162K Date Q1 2026
Pinestone Asset Management Inc. Reduced· Q1 2026 −$18M −162K Q1 2026
Millennium Management LLC · Added +$18M
Change +158K Date Q1 2026
Millennium Management LLC Added· Q1 2026 +$18M +158K Q1 2026
UBS Group AG · Reduced −$17M
Change −149K Date Q1 2026
UBS Group AG Reduced· Q1 2026 −$17M −149K Q1 2026
Squarepoint Ops LLC · Added +$17M
Change +146K Date Q1 2026
Squarepoint Ops LLC Added· Q1 2026 +$17M +146K Q1 2026
Conestoga Capital Advisors, LLC · Reduced −$16M
Change −139K Date Q1 2026
Conestoga Capital Advisors, LLC Reduced· Q1 2026 −$16M −139K Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 420

Famous investor activity in Federal Signal Corporation (FSS)

Federal Signal Corporation (FSS) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Vaillancourt Eric A. · Director Grant (A) 96
Owned 1K ΔOwn +7.3% Trade date Jun 26, 2026 Filed date Jun 29, 2026
Vaillancourt Eric A. Director Grant (A) 96 1K +7.3% Jun 26, 2026 Jun 29, 2026
Maue Richard A. · Director Grant (A) 99
Owned 3K ΔOwn +3.0% Trade date Jun 26, 2026 Filed date Jun 29, 2026
Maue Richard A. Director Grant (A) 99 3K +3.0% Jun 26, 2026 Jun 29, 2026
Sherman Jennifer L. · Director Tax withholding or exercise payment (F) -$904K
Price $117.49 Qty -8K Owned 642K Trade date May 4, 2026 Filed date May 5, 2026
Sherman Jennifer L. Director Tax withholding or exercise payment (F) $117.49 -8K -$904K 642K May 4, 2026 May 5, 2026
Hudson Ian A. · Officer Tax withholding or exercise payment (F) -$195K
Price $117.49 Qty -2K Owned 97K Trade date May 4, 2026 Filed date May 5, 2026
Hudson Ian A. Officer Tax withholding or exercise payment (F) $117.49 -2K -$195K 97K May 4, 2026 May 5, 2026
Weber Mark · Officer Tax withholding or exercise payment (F) -$268K
Price $117.49 Qty -2K Owned 86K Trade date May 4, 2026 Filed date May 5, 2026
Weber Mark Officer Tax withholding or exercise payment (F) $117.49 -2K -$268K 86K May 4, 2026 May 5, 2026
Bonina Diane · Officer Tax withholding or exercise payment (F) -$113K
Price $117.49 Qty -962 Owned 20K Trade date May 4, 2026 Filed date May 5, 2026
Bonina Diane Officer Tax withholding or exercise payment (F) $117.49 -962 -$113K 20K May 4, 2026 May 5, 2026
Sherman Jennifer L. · Director 2 operations 0
Price $12.66 Owned 0 Trade date May 1, 2026 Filed date May 5, 2026
Sherman Jennifer L. Director 2 operations $12.66 0 0 May 1, 2026 May 5, 2026
Sherman Jennifer L. · Director Tax withholding or exercise payment (F) -$3.6M
Price $121.61 Qty -30K Owned 649K Trade date May 1, 2026 Filed date May 5, 2026
Sherman Jennifer L. Director Tax withholding or exercise payment (F) $121.61 -30K -$3.6M 649K May 1, 2026 May 5, 2026
Workman John L. · Director Grant (A) 1K
Owned 59K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Workman John L. Director Grant (A) 1K 59K Apr 21, 2026 Apr 23, 2026
Vaillancourt Eric A. · Director Grant (A) 1K
Owned 1K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Vaillancourt Eric A. Director Grant (A) 1K 1K Apr 21, 2026 Apr 23, 2026
Patel Shashank · Director Grant (A) 1K
Owned 12K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Patel Shashank Director Grant (A) 1K 12K Apr 21, 2026 Apr 23, 2026
Maue Richard A. · Director Grant (A) 1K
Owned 3K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Maue Richard A. Director Grant (A) 1K 3K Apr 21, 2026 Apr 23, 2026
Lowe Eugene Joseph III · Director Grant (A) 1K
Owned 23K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Lowe Eugene Joseph III Director Grant (A) 1K 23K Apr 21, 2026 Apr 23, 2026
Helmkamp Katrina L. · Director Grant (A) 1K
Owned 6K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Helmkamp Katrina L. Director Grant (A) 1K 6K Apr 21, 2026 Apr 23, 2026
Reichelderfer Brenda · Director Grant (A) 2K
Owned 60K Trade date Apr 21, 2026 Filed date Apr 23, 2026
Reichelderfer Brenda Director Grant (A) 2K 60K Apr 21, 2026 Apr 23, 2026
15 of 39
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Federal Signal Corporation (FSS) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 9.3M
% of shares outstanding 15.3% Filing date Jan 22, 2024
BlackRock Inc. 9.3M 15.3% Jan 22, 2024
Vanguard Group Inc 6.7M
% of shares outstanding 11.0% Filing date Feb 13, 2024
Vanguard Group Inc 6.7M 11.0% Feb 13, 2024
Vanguard Portfolio Management 3.7M
% of shares outstanding 6.1% Filing date Apr 29, 2026
Vanguard Portfolio Management 3.7M 6.1% Apr 29, 2026
Vanguard Capital Management 3.2M
% of shares outstanding 5.2% Filing date Apr 29, 2026
Vanguard Capital Management 3.2M 5.2% Apr 29, 2026
FMR LLC 2.7M
% of shares outstanding 4.5% Filing date Feb 9, 2024
FMR LLC 2.7M 4.5% Feb 9, 2024
Dimensional Fund Advisors LP 2.8M
% of shares outstanding 4.5% Filing date Feb 8, 2022
Dimensional Fund Advisors LP 2.8M 4.5% Feb 8, 2022
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Federal Signal Corporation (FSS) ownership FAQ

Who owns FSS?

420 reporting institutions disclosed FSS position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.