| 05/14/2026 3:31 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 05/13/2026 8:29 AM | Blue Water Acquisition Corp. IV (2082847) Subject Magnetar Financial LLC (1352851) Filed by | Form SCHEDULE 13G | |
| 05/13/2026 8:09 AM | Adage Capital Management, L.P. (1535978) Filed by Blue Water Acquisition Corp. IV (2082847) Subject | Form SCHEDULE 13G | |
| 05/06/2026 7:30 AM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 04/28/2026 4:20 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 04/28/2026 4:21 PM | Blue Water Acquisition Corp. IV (2082847) Subject | Form 425 | |
| 04/15/2026 7:17 PM | Blue Water Acquisition Corp. IV (2082847) Subject Blue Water Acquisition IV LLC (2083181) Filed by | Form SCHEDULE 13G | |
| 04/09/2026 3:43 PM | Blue Water Acquisition Corp. IV (2082847) Subject Wealthspring Capital LLC (1844495) Filed by | Form SCHEDULE 13G | |
| 03/27/2026 3:30 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 03/25/2026 3:30 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 03/24/2026 3:30 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Hernandez Joseph (1598384) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/24/2026 3:30 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Blue Water Acquisition IV LLC (2083181) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/23/2026 7:26 AM | Blue Water Acquisition Corp. IV (2082847) Issuer Hermouet Laurent Didier (2069721) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 11:15 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form EFFECT | |
| 03/19/2026 4:11 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Blue Water Acquisition IV LLC (2083181) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:11 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Coulson Timothy Neal (2071694) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:11 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Ross Martha F. (1897235) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:11 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Hawkins Trevor Leonard (2070377) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:11 PM | Blue Water Acquisition Corp. IV (2082847) Issuer Hernandez Joseph (1598384) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 12:29 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form CERT | |
| 03/19/2026 11:42 AM | Blue Water Acquisition Corp. IV (2082847) Filer | Form 8-A12B | |
| 02/24/2026 1:36 PM | Blue Water Acquisition Corp. IV (2082847) Filer | Form S-1/A | |