Federal Signal Corporation
US ˙ NYSE ˙ US3138551086

SecurityFSS / Federal Signal Corporation
InstitutionPembroke Management, LTD
Latest Disclosed Ownership287,862 shares
Latest Disclosed Value $ 31,129,397
Pembroke Management, LTD reports 22.73% decrease in ownership of FSS / Federal Signal Corporation

On May 14, 2026 - Pembroke Management, LTD filed a 13F-HR form disclosing ownership of 287,862 shares of Federal Signal Corporation (US:FSS) valued at $31,129,397 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 372,543 shares of Federal Signal Corporation. This represents a change in shares of -22.73% during the quarter. The current value of the position is $31,063,188 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)
2026-05-14 2026-03-31 13F FEDERAL SIGNAL COM 313855108 287,862 -84,681 -22.73 31,129 -23.05 4.5021
2026-02-12 2025-12-31 13F FEDERAL SIGNAL COM 313855108 372,543 91,347 32.49 40,454 20.91 4.1794
2025-10-28 2025-09-30 13F FEDERAL SIGNAL COM 313855108 281,196 -74,360 -20.91 33,460 -11.57 3.3201
2025-08-07 2025-06-30 13F FEDERAL SIGNAL COM 313855108 355,556 57,799 19.41 37,838 72.78 4.5773
2025-05-15 2025-03-31 13F FEDERAL SIGNAL COM 313855108 297,757 17,741 6.34 21,900 -15.35 3.1935
2025-01-31 2024-12-31 13F FEDERAL SIGNAL COM 313855108 280,016 58,756 26.56 25,871 25.11 3.2258
2024-10-29 2024-09-30 13F FEDERAL SIGNAL COM 313855108 221,260 11,411 5.44 20,679 17.77 2.6373
2024-08-01 2024-06-30 13F FEDERAL SIGNAL COM 313855108 209,849 10,313 5.17 17,558 3.68 2.3587
2024-05-08 2024-03-31 13F FEDERAL SIGNAL COM 313855108 199,536 -5,486 -2.68 16,935 7.63 1.9926
2024-02-13 2023-12-31 13F FEDERAL SIGNAL COM 313855108 205,022 205,022 15,733 1.9533
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.