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Insider / Smurfit Westrock plc

Arnold Colleen F.

Director at Smurfit Westrock plc

Company
Smurfit Westrock plc
Ticker
SW
First filing on record
December 19, 2025
Latest trade on record
September 10, 2026
SEC filings
EDGAR ↗

Arnold Colleen F., Director at Smurfit Westrock plc, has disclosed 6 transactions in SW since December 19, 2025: 0 purchases (0 open-market buys) and 1 sale, worth about $82K at the reported prices. The latest was filed September 14, 2026, 4 days after the trade.

Last updated September 14, 2026 · Source: SEC EDGAR Form 4 filings

Transactions
6
Open-market buys
0
Sales
1
Avg. disclosure lag
2.8d

Trading in charts

Trade timeline

When does this person trade, how big, and in which direction? Every trade in the last 12 months.

Bought (above the line)Sold (below the line)Other transaction
Oct 25NovDecJan 26FebMarAprMayJunJulAugSep
Oct 25NovDecJan 26FebMarAprMayJunJulAugSep

In the last 12 months Arnold Colleen F. made no purchases and 1 sale worth $82K, plus 5 other transactions. Dot size is the dollar amount.

Portfolio mix

Which stocks does this person trade most? Tile size is dollars traded, all time on record.

Arnold Colleen F. has traded 1 stock on record; the largest by dollars is SW.

Reporting lag

Does this person report on time? One bar per filing against the Form 4 deadline.

On timeLate
Form 4 deadlineoldest filingnewest

0 of 5 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).

What kind of transactions

Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.

Rows by Form 4 transaction code
CodeMeaningRowsSharesValue
AGrant or award55,862—
FShares withheld for tax12,123$82K
Rows by year of the trade
YearRowsBoughtSold
2026501 · $82K
2025100

Transactions

Download SW trades (CSV)188 rows · 62 KB · every filer in this ticker, this insider included · all downloads

SecuritySideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
SWOther ASeptember 10, 2026September 14, 20264d344——Form 4 ↗
SWOther AJune 10, 2026June 12, 20262d368——Form 4 ↗
SWSell FMay 1, 2026May 5, 20264d2,123$38$82KForm 4 ↗
SWOther AMay 1, 2026May 5, 20264d4,438——Form 4 ↗
SWOther AMarch 18, 2026March 20, 20262d367——Form 4 ↗
SWOther ADecember 18, 2025December 19, 20251d346——Form 4 ↗

Filings

FiledFormAccessionRowsStatusSource
September 14, 2026Form 40001628280-26-0617491publishedEDGAR ↗
June 12, 2026Form 40001628280-26-0427151publishedEDGAR ↗
May 5, 2026Form 40001628280-26-0303112publishedEDGAR ↗
March 20, 2026Form 40001628280-26-0200971publishedEDGAR ↗
December 19, 2025Form 40001628280-25-0581631publishedEDGAR ↗

Other insiders at Smurfit Westrock plc

Everyone on file, with contracts and lobbying under the company's name: Smurfit Westrock plc.

Guides for this page

Sources and method

Official sources behind this page
SourceFilingsRowsFirst filedNewest filedRead the originals
SEC EDGAR, Form 456December 19, 2025September 14, 2026Form 4 list on EDGAR

Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.

Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.

Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.