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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•23 filings

GSM

Ferroglobe PLC

Net sales of $138.9K over the last 3 months

1 seller account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$138,856

0 buyers · 1 sellers

12-month purchases

$200,647

2 distinct insiders

12-month sales

$138,856

1 distinct insiders

Highlighted alerts

3

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

12
Raw transactions
Everything returned by the filing
3
Voluntary view
P/S trades after deterministic checks
9
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
F
Shares
6,889
Price
$4.31
Footnotes
1

The amount reported reflects the correction of an inadvertent arithmetic error in the holdings reported on the Form 4 filed March 25, 2026, which understated holdings by 25,974 shares.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

3 transactions

Garcia Cos Muntanola Beatriz

CHIEF FINANCE OFFICER

SaleAlert
Shares
32,292
Price
$4.30
Value
$138,856
Open SEC filing

Villar-Mir de Fuentes Silvia

Director

PurchaseAlert
Shares
26,000
Price
$3.86
Value
$100,324
Open SEC filing

Lopez Madrid Javier

Executive Chairman

PurchaseAlert
Shares
26,000
Price
$3.86
Value
$100,324
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.