Federal Signal Corporation
US ˙ NYSE ˙ US3138551086

SecurityFSS / Federal Signal Corporation
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership131,241 shares
Latest Disclosed Value $ 14,192,402
Fred Alger Management, Llc reports 0.48% decrease in ownership of FSS / Federal Signal Corporation

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 131,241 shares of Federal Signal Corporation (US:FSS) valued at $14,192,402 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 131,870 shares of Federal Signal Corporation. This represents a change in shares of -0.48% during the quarter. The current value of the position is $14,162,216 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)
2026-05-15 2026-03-31 13F Federal Signal Equity 313855108 131,241 -629 -0.48 14,192 -0.89 0.0397
2026-02-17 2025-12-31 13F Federal Signal Equity 313855108 131,870 -25,340 -16.12 14,320 -23.45 0.0562
2025-11-14 2025-09-30 13F Federal Signal Equity 313855108 157,210 -85,354 -35.19 18,706 -27.53 0.0728
2025-08-14 2025-06-30 13F Federal Signal Equity 313855108 242,564 -120,432 -33.18 25,814 -3.31 0.1155
2025-05-16 2025-03-31 13F Federal Signal Equity 313855108 362,996 -8,743 -2.35 26,698 -22.26 0.1520
2025-02-14 2024-12-31 13F Federal Signal Equity 313855108 371,739 33,556 9.92 34,345 8.66 0.1637
2024-11-14 2024-09-30 13F FEDERAL SIGNAL Common 313855108 338,183 -2,193 -0.64 31,607 10.98 0.1532
2024-08-14 2024-06-30 13F FEDERAL SIGNAL Common 313855108 340,376 38,620 12.80 28,479 11.20 0.1385
2024-05-15 2024-03-31 13F FEDERAL SIGNAL Common 313855108 301,756 169,250 127.73 25,610 151.87 0.1270
2024-02-14 2023-12-31 13F FEDERAL SIGNAL Common 313855108 132,506 132,506 10,169 0.0549
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.