HORIZON QUANTUM HOLDINGS LTD.

PublicCIK: 2088256

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FITZSIMONS CATHERINE MICHELE

→HORIZON QUANTUM HOLDINGS LTD.

Oct 21, 2026·Oct 21, 2026

1 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Oct 20, 2026·Oct 20, 2026

1 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Sep 17, 2026·Sep 17, 2026

1 txn

CHEW QIAN YI AMANDA

→HORIZON QUANTUM HOLDINGS LTD.

Sep 16, 2026·Sep 16, 2026

1 txn

FITZSIMONS CATHERINE MICHELE

→HORIZON QUANTUM HOLDINGS LTD.

Sep 16, 2026·Sep 16, 2026

4 txn

GOULD GREG

→HORIZON QUANTUM HOLDINGS LTD.

Sep 16, 2026·Sep 16, 2026

4 txn

TAN SI-HUI

→HORIZON QUANTUM HOLDINGS LTD.

Sep 16, 2026·Sep 16, 2026

6 txn

FITZSIMONS JOSEPH FRANCIS

→HORIZON QUANTUM HOLDINGS LTD.

Sep 16, 2026·Sep 16, 2026

4 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Aug 19, 2026·Aug 19, 2026

1 txn

CHEW QIAN YI AMANDA

→HORIZON QUANTUM HOLDINGS LTD.

Aug 10, 2026·Aug 10, 2026

2 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Jul 17, 2026·Jul 17, 2026

1 txn

OEY PETER HENRY

144

→GRAB HOLDINGS LTD

Jul 15, 2026·Jul 15, 2026

-3

OEY PETER HENRY

→GRAB HOLDINGS LTD

Jul 3, 2026·Jul 3, 2026

1 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Jun 18, 2026·Jun 18, 2026

1 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

May 20, 2026·May 20, 2026

1 txn

OEY PETER HENRY

→GRAB HOLDINGS LTD

Apr 18, 2026·Apr 18, 2026

8 txn

LAMBERT DANIELLE

→HORIZON QUANTUM HOLDINGS LTD.

Mar 25, 2026·Mar 25, 2026

1 txn

TAN SI-HUI

→HORIZON QUANTUM HOLDINGS LTD.

Mar 25, 2026·Mar 25, 2026

1 txn

GOULD GREG

→HORIZON QUANTUM HOLDINGS LTD.

Mar 25, 2026·Mar 25, 2026

1 txn

FITZSIMONS JOSEPH FRANCIS

→HORIZON QUANTUM HOLDINGS LTD.

Mar 24, 2026·Mar 24, 2026

1 txn

YOU HARRY L.

→HORIZON QUANTUM HOLDINGS LTD.

Mar 20, 2026·Mar 20, 2026

3 txn

DMY SQUARED SPONSOR, LLC

→DMY SQUARED TECHNOLOGY GROUP, INC.

Mar 20, 2026·Mar 20, 2026

2 txn

YOU HARRY L.

→HORIZON QUANTUM HOLDINGS LTD.

Mar 20, 2026·Mar 20, 2026

1 txn

FITZSIMONS JOSEPH FRANCIS

→HORIZON QUANTUM HOLDINGS LTD.

Mar 19, 2026·Mar 19, 2026

1 txn

OEY PETER HENRY

144

→GRAB HOLDINGS LTD

Mar 16, 2026·Mar 16, 2026

-3

Page 1 of 2 · 35 total

Filer	Form	Target	Filed	Activity
FITZSIMONS CATHERINE MICHELECIK · 2123065	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Oct 21, 2026 Oct 21, 2026	1txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Oct 20, 2026 Oct 20, 2026	1txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Sep 17, 2026 Sep 17, 2026	1txn
CHEW QIAN YI AMANDACIK · 2148016	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Sep 16, 2026 Sep 16, 2026	1txn
FITZSIMONS CATHERINE MICHELECIK · 2123065	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Sep 16, 2026 Sep 16, 2026	4txn
GOULD GREGCIK · 2120154	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Sep 16, 2026 Sep 16, 2026	4txn
TAN SI-HUICIK · 2120880	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Sep 16, 2026 Sep 16, 2026	6txn
FITZSIMONS JOSEPH FRANCISCIK · 2122720	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Sep 16, 2026 Sep 16, 2026	4txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Aug 19, 2026 Aug 19, 2026	1txn
CHEW QIAN YI AMANDACIK · 2148016	3 Initial	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Aug 10, 2026 Aug 10, 2026	2txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Jul 17, 2026 Jul 17, 2026	1txn
OEY PETER HENRYCIK · 1976718	144 Sale	GRAB HOLDINGS LTDCIK · 1855612	Jul 15, 2026 Jul 15, 2026	—
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Jul 3, 2026 Jul 3, 2026	1txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Jun 18, 2026 Jun 18, 2026	1txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	May 20, 2026 May 20, 2026	1txn
OEY PETER HENRYCIK · 1976718	4 Trade	GRAB HOLDINGS LTDCIK · 1855612	Apr 18, 2026 Apr 18, 2026	8txn
LAMBERT DANIELLECIK · 2120146	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 25, 2026 Mar 25, 2026	1txn
TAN SI-HUICIK · 2120880	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 25, 2026 Mar 25, 2026	1txn
GOULD GREGCIK · 2120154	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 25, 2026 Mar 25, 2026	1txn
FITZSIMONS JOSEPH FRANCISCIK · 2122720	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 24, 2026 Mar 24, 2026	1txn
YOU HARRY L.CIK · 1432602	4 Trade	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 20, 2026 Mar 20, 2026	3txn
DMY SQUARED SPONSOR, LLCCIK · 1915397	4 Trade	DMY SQUARED TECHNOLOGY GROUP, INC.CIK · 1915380	Mar 20, 2026 Mar 20, 2026	2txn
YOU HARRY L.CIK · 1432602	3 Initial	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 20, 2026 Mar 20, 2026	1txn
FITZSIMONS JOSEPH FRANCISCIK · 2122720	3 Initial	HORIZON QUANTUM HOLDINGS LTD.CIK · 2088256	Mar 19, 2026 Mar 19, 2026	1txn
OEY PETER HENRYCIK · 1976718	144 Sale	GRAB HOLDINGS LTDCIK · 1855612	Mar 16, 2026 Mar 16, 2026	—

Page 1 of 2 · 35 total