SEC Form 4

Jack in the Box Inc. (JACK) insider trading

In the 12 months to Oct 26, 2026, one JACK insider reported open-market sales of $26.5K across 1 filing; 3 insiders bought $172.6K.

Latest filing Oct 13, 2026 · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales: $26.5K; 1 filing · 1 insider
Open-market purchases: $172.6K; 4 filings

$ excludes 1 trade without a price.

Who traded JACK, and when

Purchase
Sale

JACK daily closelast $11.00

Lance F. Tucker · DIRECTOR & CEO

$86.5K bought

Guillermo Diaz Jr. · Director

$68.6K bought

Carl Mount · SVP, CHF SUPPLY CHAIN OFFICER

$26.5K sold

Ryan Lee Ostrom · EVP, Chief Cust&Digtl Officer

$17.6K bought

One row per insider; marks sit at the SEC filing date, sized by dollar value.

Open-market trades

5 filings in the last 12 months

Insider	Role	Sold	Bought	Filings	Pre-arranged (10b5-1)	Last filed
Lance F. Tucker	DIRECTOR & CEO	—	$86.5K	1	—	Nov 24, 2025
Guillermo Diaz Jr.	Director	—	$68.6K	2	—	May 28, 2026
Carl Mount	SVP, CHF SUPPLY CHAIN OFFICER	$26.5K	—	1	—	Nov 25, 2025
Ryan Lee Ostrom	EVP, Chief Cust&Digtl Officer	—	$17.6K	1	—	Nov 24, 2025

Filed	Insider	Type	Shares	Avg price	Value	Held after
May 28, 2026 traded May 28, 2026	Guillermo Diaz Jr. Director	Purchase	5,962	—	—	20,692
May 28, 2026 traded May 28, 2026	Guillermo Diaz Jr. Director	Purchase	5,962	$11.51	$68.6K	20,692
Nov 25, 2025 traded Nov 25, 2025	Carl Mount SVP, CHF SUPPLY CHAIN OFFICER	Sale	1,393	$19.00	$26.5K	19,300
Nov 24, 2025 traded Nov 24, 2025	Lance F. Tucker DIRECTOR & CEO	Purchase	5,000	$17.29	$86.5K	84,555
Nov 24, 2025 traded Nov 24, 2025	Ryan Lee Ostrom EVP, Chief Cust&Digtl Officer	Purchase	1,000	$17.55	$17.6K	50,489

GET /stocks/filings/vX/form-4?tickers=JACK&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "JACK",
        "JBX"
      ],
      "issuer_cik": "0000807882",
      "owner_cik": "0001947807",
      "accession_number": "0001947807-26-000004",
      "form_type": "4",
      "filing_date": "2026-05-28",
      "period_of_report": "2026-05-28",
      "issuer_name": "JACK IN THE BOX INC",
      "issuer_trading_symbol": "JACK",
      "owner_name": "DIAZ GUILLERMO JR",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "COMMON STOCK",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-05-28",
      "transaction_code": "P",
      "equity_swap_involved": false,
      "transaction_shares": 5962,
      "transaction_price_per_share": 0,
      "transaction_acquired_disposed": "A",
      "shares_owned_following_transaction": 20692,
      "transaction_value": 0,
      "direct_or_indirect": "D"
    },
    {
      "tickers": [
        "JACK",
        "JBX"
      ],
      "issuer_cik": "0000807882",
      "owner_cik": "0001947807",
      "accession_number": "0001947807-26-000006",
      "form_type": "4",
      "filing_date": "2026-05-28",
      "period_of_report": "2026-05-28",
      "issuer_name": "JACK IN THE BOX INC",
      "issuer_trading_symbol": "JACK",
      "owner_name": "DIAZ GUILLERMO JR",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "COMMON STOCK",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-05-28",
      "transaction_code": "P",
      "equity_swap_involved": false,
      "transaction_shares": 5962,
      "transaction_price_per_share": 11.51,
      "transaction_acquired_disposed": "A",
      "shares_owned_following_transaction": 20692,
      "transaction_value": 68622.62,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "Addition of price."
        }
      ]
    }
  ]
}

// trimmed to 2 results

The response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.

Query this data with the API

Other insider activity (not market trades) · 69 records

Tax withholding2 records
Tax withholding (sold to cover)40 records
Grants and awards26 records
Other1 record

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

How to read this page

Open-market purchase or sale: A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Filing date: Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.

Frequently asked questions

Has Jack in the Box Inc.'s CEO sold stock?

No. Mark James King and Lance F. Tucker (CEOs) made no open-market sales filed as CEO in the last 12 months.

How current is JACK’s insider data?

These are JACK Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

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Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for JACK every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

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