Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Biglari Holdings Inc. - 12 Jan 2026 SCHEDULE 13D/A Report for JACK IN THE BOX INC Common Stock (JACK)
- Filing manager
- Biglari Holdings Inc.
- Reporting owner
- BIGLARI, SARDAR
- Security
- JACK IN THE BOX INC Common Stock
- Beneficially owned shares
- 1,884,269 shares
- Large-stake signal
-
Ownership
10%Beneficial ownership of this reported class.
Shares
1,884,269 sharesShares beneficially owned as disclosed.
Event date
12 Jan 2026Date tied to the ownership event or amendment.
Accepted by SEC
14 Jan 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 10%
- Symbol
- JACK
- Shares outstanding
- 18,880,451 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 14 Jan 2026, 18:45:19 UTC
- Event date
- 12 Jan 2026
- Prior SEC filing
- 29 Dec 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
Biglari Holdings Inc. disclosed 10% ownership in JACK IN THE BOX INC Common Stock (JACK) on 12 Jan 2026.
Key facts
- Biglari Holdings Inc. filed SCHEDULE 13D/A for JACK IN THE BOX INC Common Stock (JACK).
- Disclosed ownership: 10%.
- Date of event: 12 Jan 2026.
Change
- Previous schedule filing date: 29 Dec 2025.
- Current filing was accepted on 14 Jan 2026, 18:45.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (10)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Biglari Holdings Inc. | 1.1% | 200,617 | 200,617 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman and Chief Executive Officer | 0001726173 |
| LION FUND, L.P. | 2.9% | 542,700 | 542,700 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman and Chief Executive Officer of Biglari Capital Corp., its general partner | 0001334426 |
| LION FUND II, L.P. | 6% | 1,140,952 | 1,140,952 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman and Chief Executive Officer of Biglari Capital Corp., its general partner | 0001580602 |
| Southern Pioneer Property & Casualty Insurance Company | 0.6% | 106,317 | 106,317 | 0 | /s/ Sardar Biglari | Sardar Biglari, Authorized Signatory | |
| First Guard Insurance Company | 0.1% | 21,900 | 21,900 | 0 | /s/ Sardar Biglari | Sardar Biglari, Authorized Signatory | |
| Biglari Reinsurance Ltd. | 0.8% | 148,217 | 148,217 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman and Chief Executive Officer | 0002035328 |
| Biglari Insurance Group Inc. | 0.8% | 148,217 | 148,217 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman of the Board | 0002034968 |
| Western Sizzlin Corporation | 0.3% | 52,400 | 52,400 | 0 | /s/ Sardar Biglari | Sardar Biglari, President | |
| BIGLARI CAPITAL CORP. | 8.9% | 1,683,652 | 1,683,652 | 0 | /s/ Sardar Biglari | Sardar Biglari, Chairman and Chief Executive Officer | 0001334429 |
| BIGLARI, SARDAR | 10% | 1,884,269 | 1,884,269 | 0 | /s/ Sardar Biglari | Sardar Biglari | 0001334430 |
CIK / CUSIP context first