Jack In THE Box Inc (JACK) — 13F Filings Explorer (Q2 2026)

JACK ranks #3871 out of 37501 tracked stocks by institutional interest, inside the more closely watched half of our coverage.

JACK is a top-conviction position for Biglari, Sardar — at 5.1% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.

The largest dollar stake in JACK belongs to Nantahala Capital Management, LLC, but the position matters far more to Biglari, Sardar, who has 5.1% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.

Quantinno Capital Management LP has added to its JACK position for two straight quarters, increasing it by $1.5M to reach $2.2M today.

Morgan Stanley has trimmed its JACK position for two straight quarters, cutting it by $5.5M while still holding $1.8M.

JACK is down 5.3% today, but institutions show net buying of $55.0M this quarter — a divergence between today's price move and the underlying institutional flow.

JACK posted net income of $33.7M over the trailing twelve months.

• Profitable — net income of $33.7M over the trailing twelve months
• Revenue declined 12.4% year over year
• Net income improved year over year, from -$208.9M to $33.7M
• Generated $162.4M in positive operating cash flow
• Current ratio of 0.51x — below the conventional 1.5x liquidity buffer
• Liabilities run 1.00x equity — within a conventional range