| 05/11/2026 3:45 PM | Fitzsimons Catherine Michele (2123065) Reporting Horizon Quantum Computing Pte. (2088256) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 05/05/2026 3:05 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 04/24/2026 8:05 AM | Horizon Quantum Computing Pte. (2088256) Filer | Form 424B3 | |
| 04/23/2026 11:15 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form EFFECT | |
| 04/21/2026 3:30 PM | Horizon Quantum Computing Pte. Ltd. (2088257) Filer Horizon Quantum Computing Pte. (2088256) Filer | Form AW | |
| 04/16/2026 4:16 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form F-1 Registration statement for securities of certain foreign private issuers | |
| 04/14/2026 4:22 PM | Horizon Quantum Computing Pte. Ltd. (2088257) Filer Horizon Quantum Computing Pte. (2088256) Filer | Form POS AM | |
| 04/14/2026 3:50 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form 20-F Registration statement / Annual report / Transition report | |
| 04/09/2026 6:05 AM | Horizon Quantum Computing Pte. (2088256) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 04/02/2026 7:15 AM | Horizon Quantum Computing Pte. (2088256) Issuer Turner Jill Ann (2124589) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 04/01/2026 8:34 PM | Horizon Quantum Computing Pte. (2088256) Subject IonQ, Inc. (1824920) Filed by IonQ, Inc. (1824920) Filed by | Form SCHEDULE 13D | |
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| 03/31/2026 7:22 AM | Fitzsimons Joseph Francis (2122720) Filed by Horizon Quantum Computing Pte. (2088256) Subject | Form SCHEDULE 13D | |
| 03/25/2026 6:01 PM | Horizon Quantum Computing Pte. (2088256) Issuer Lambert Danielle (2120146) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/25/2026 3:21 PM | Horizon Quantum Computing Pte. (2088256) Issuer Tan Si-Hui (2120880) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/25/2026 3:07 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form 20-F Registration statement / Annual report / Transition report | |
| 03/25/2026 3:10 PM | Gould Greg (2120154) Reporting Horizon Quantum Computing Pte. (2088256) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/25/2026 5:19 AM | Horizon Quantum Computing Pte. (2088256) Subject Tencent Holdings Ltd (1293451) Filed by | Form SCHEDULE 13G | |
| 03/24/2026 5:30 PM | Fitzsimons Joseph Francis (2122720) Reporting Horizon Quantum Computing Pte. (2088256) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/20/2026 3:35 PM | Horizon Quantum Computing Pte. (2088256) Issuer You Harry L. (1432602) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 03/20/2026 3:40 PM | Horizon Quantum Computing Pte. (2088256) Subject You Harry L. (1432602) Filed by | Form SCHEDULE 13D | |
| 03/20/2026 3:30 PM | Horizon Quantum Computing Pte. (2088256) Issuer You Harry L. (1432602) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:25 PM | Horizon Quantum Computing Pte. (2088256) Issuer Tan Si-Hui (2120880) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:25 PM | Fitzsimons Joseph Francis (2122720) Reporting Horizon Quantum Computing Pte. (2088256) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:25 PM | Horizon Quantum Computing Pte. (2088256) Issuer Oey Peter Henry (1976718) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:25 PM | Gould Greg (2120154) Reporting Horizon Quantum Computing Pte. (2088256) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:25 PM | Horizon Quantum Computing Pte. (2088256) Issuer Lambert Danielle (2120146) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/19/2026 4:00 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 03/19/2026 3:04 PM | Horizon Quantum Computing Pte. (2088256) Filer | Form CERT | |
| 03/19/2026 9:25 AM | Horizon Quantum Computing Pte. (2088256) Filer | Form 8-A12B | |
| 03/11/2026 4:22 PM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/10/2026 10:08 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/10/2026 7:44 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/09/2026 10:02 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/09/2026 8:19 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/09/2026 8:23 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/09/2026 8:24 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 03/09/2026 8:26 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 02/17/2026 11:15 PM | Horizon Quantum Computing Pte. Ltd. (2088257) Filer Horizon Quantum Computing Pte. (2088256) Filer | Form EFFECT | |
| 01/29/2026 8:24 PM | Horizon Quantum Computing Pte. Ltd. (2088257) Filer Horizon Quantum Computing Pte. (2088256) Filer | Form F-4/A | |
| 01/26/2026 7:45 PM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 01/20/2026 8:29 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
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| 01/14/2026 4:17 PM | Horizon Quantum Computing Pte. Ltd. (2088257) Filer Horizon Quantum Computing Pte. (2088256) Filer | Form F-4 Registration statement for securities of certain foreign private issuers issued in certain business combination transactions | |
| 01/12/2026 12:28 PM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 12/09/2025 5:20 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 12/05/2025 6:58 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 12/03/2025 8:44 AM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |
| 10/22/2025 3:05 PM | dMY Squared Technology Group, Inc. (1915380) Subject Horizon Quantum Computing Pte. (2088256) Filed by | Form 425 | |