ATLQ: JAB Acquisition Corp I insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-08-14Fell below 5%Sculptor Capital LP0.00%SEC
2026-08-14New 13G stakeHighbridge Capital Management, LLC8.80%SEC
2026-08-14New 13G stakeAristeia Capital, L.L.C.5.22%SEC
2026-08-13New 13G stakeDecagon Asset Management LLP5.26%SEC
2026-08-13New 13G stakeMizuho Financial Group, Inc.6.60%SEC
2026-08-13New 13G stakeMAGNETAR FINANCIAL LLC5.22%SEC
2026-08-10Fell below 5%Feis Equities LLC3.02%SEC

Institutional ownership (Q2 2026)

38 institutions reported holding $155.50M of JAB Acquisition Corp I on Form 13F (0 the quarter before). 38 opened a new position and 0 sold out. Shares held by institutions: new.

Largest holdersSharesValue
HIGHBRIDGE CAPITAL MANAGEMENT LLC1,638,750$16.44M
MIZUHO SECURITIES USA LLC1,011,661$10.09M
Decagon Asset Management LLP908,000$9.11M
ARISTEIA CAPITAL, L.L.C.900,000$9.03M
Magnetar Financial LLC900,000$9.03M
Harraden Circle Investments, LLC900,000$9.03M
Shaolin Capital Management LLC735,318$7.38M
Crossingbridge Advisors, LLC725,000$7.27M
HEIGHTS CAPITAL MANAGEMENT, INC700,000$7.02M
WOLVERINE ASSET MANAGEMENT LLC615,000$6.17M

Get new insider and activist filings the morning after: daily alerts. Not investment advice.