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FSS

Federal Signal Corp.

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FSS in the last 90 days

Federal Signal Corp. (FSS) had no congress transactions and no insider purchases in filings from the last 90 days.

FINRA’s latest report (settlement 15 SEPT 2026) shows 3,877,971 shares held short, 10.6 days to cover, down 4.4% from the report before.

  • Delay: each filing below shows how many days passed between the trade and its publication. None of this is real-time.

Latest filing on file: 07 APR 2026 · FINRA settlement 15 SEPT 2026 · public filings, reported as filed

What the filings show

What the filings show · last 90 days

1 of 4 sources

+25Tilted in

Leaning outBalancedLeaning in

The disclosed money is leaning into this name, on what has actually been filed. This reads on one source only, so treat it lightly.

Short interest
Short interest fell 10.0% — 4,308,569 to 3,877,971 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
+25

This summarises filings that have already been published — it is not a forecast, a rating of the company, or advice. Every figure above is listed in full further down this page, with the document it came from.

FINRA short interest

Settlement 15 SEPT 2026 · shares held short

3,877,971shares held short

Days to cover

10.64

Avg daily volume

364,621

Since last report

-4.44%

As of 15 September 2026, 3,877,971 Federal Signal Corp. shares were held short — the total across every reporting firm, not one fund's position. That is 180,161 shares fewer than the previous report, a 4.44% decrease. At the average daily volume of 364,621 shares, that position represents 10.64 days of trading — what the filing calls days to cover.

This is the most recent figure that exists, and it is 17 days old. FINRA collects short interest twice a month, on a settlement date, and publishes it about eight business days later. So nobody has a live short-interest number for FSS — not us, and not anyone quoting one. We print the settlement date on the figure so you always know which day you are looking at.

Across the 12 reports we hold, the position has risen from 3,046,744 shares on 31 March 2026 to 3,877,971 today, a change of 27.3%. The highest reading in that window was 4,308,569 shares on 15 July 2026.

SettlementShares shortDays to cover
15 SEPT 20263,877,97110.64
31 AUG 20264,058,13212.89
14 AUG 20264,239,85810.31
31 JUL 20264,116,1918.74
15 JUL 20264,308,5696.36
30 JUN 20264,189,9965.48
15 JUN 20263,929,8648.23
29 MAY 20263,732,9459.16
15 MAY 20263,708,0568.95
30 APR 20263,498,7666.68
15 APR 20263,285,9867.16
31 MAR 20263,046,7445.74
What is FSS's short interest?
3,877,971 shares, as of the 15 September 2026 settlement date. That is the figure FINRA published, unadjusted.
What percentage of the float is short?
We do not publish that, because FINRA does not publish float. The regulator reports the number of shares held short; turning it into a percentage needs a share count from somewhere else, and different sources disagree about what counts as float. We would rather give you the number that was actually filed than a percentage built on an assumption.
How current is this?
It is 17 days old, and that is as fresh as short interest gets. FINRA measures it twice a month and publishes it seven business days after the settlement date. Any site showing you a "live" short interest figure is showing you something else.
What does days to cover mean?
It is the short position divided by average daily trading volume — here, 10.64. It describes how many days of ordinary trading the position is equivalent to. It is arithmetic from the filing, not a prediction about what will happen.
Where does this come from?
FINRA's consolidated short interest file, which is public. We read it directly and store it unchanged, except that we blank the days-to-cover placeholder FINRA writes when a stock has almost no volume.

Disclosed insider buying on file

—no purchase on file passed the price check

Open-market purchases only — the amount is a fact, not a verdict.

On file here

Short positions0

Insider purchases0

Congress transactions3

Latest change07 APR 2026

SHORT POSITIONS · 0INSIDER BUYS · 0CONGRESS · 3

Congress transactions on file

3 disclosed · newest first · every row links to its filing

WhoAmount as filedTradedFiledLag
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00009 MAR 202607 APR 202629 days
Hon. Josh GottheimerBOUGHT$1,001 – $15,00026 FEB 202616 MAR 202618 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00002 MAR 202609 MAR 20267 days
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