Federal Signal Corporation
US ˙ NYSE ˙ US3138551086

SecurityFSS / Federal Signal Corporation
InstitutionFox Run Management, L.l.c.
Latest Disclosed Ownership12,971 shares
Latest Disclosed Value $ 1,358,972
Fox Run Management, L.l.c. ownership in FSS / Federal Signal Corporation

On May 12, 2026 - Fox Run Management, L.l.c. filed a 13F-HR form disclosing ownership of 12,971 shares of Federal Signal Corporation (US:FSS) valued at $1,402,684 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 0 shares of Federal Signal Corporation. The current value of the position is $1,389,583 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)
2026-05-12 2026-03-31 13F FEDERAL SIGNAL COM 313855108 12,971 12,971 1,359 0.2377
2026-02-11 2025-12-31 13F FEDERAL SIGNAL COM 313855108 0 -3,273 -100.00 0 -100.00
2025-11-12 2025-09-30 13F FEDERAL SIGNAL COM 313855108 3,273 -3,404 -50.98 389 -45.21 0.0607
2025-08-06 2025-06-30 13F FEDERAL SIGNAL COM 313855108 6,677 -10,815 -61.83 711 -44.79 0.1184
2025-05-13 2025-03-31 13F FEDERAL SIGNAL COM 313855108 17,492 12,940 284.27 1,287 206.19 0.1993
2025-02-11 2024-12-31 13F FEDERAL SIGNAL COM 313855108 4,552 -5,589 -55.11 421 -55.65 0.0764
2024-11-12 2024-09-30 13F FEDERAL SIGNAL COM 313855108 10,141 -1,671 -14.15 948 -4.15 0.2109
2024-08-13 2024-06-30 13F FEDERAL SIGNAL COM 313855108 11,812 7,631 182.52 988 179.10 0.1860
2024-05-13 2024-03-31 13F FEDERAL SIGNAL COM 313855108 4,181 4,181 355 0.0765
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.