GSR III ACQUISITION CORP

Historical 13F Holders

Symbol: GSRT
CUSIP: G4R103107
All holders as of: Q4 2025
Type: Equity
Class: CL A

Reported Value, Excluding Options

Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for G4R103107 since 12/18/2024, newest first.

Filer	% of Class	Shares	Form	Filed
Merus Global Investments, LLC 13G/A Amendment 1	0%	0	13G/A Amendment 1	2/17/2026 Event 12/31/2025
Goldman Sachs Group Inc 13G/A Amendment 1	0%	86	13G/A Amendment 1	11/14/2025 Event 9/30/2025
The Goldman Sachs Group, Inc.	0%	86
Goldman Sachs & Co. LLC	0%	86
Magnetar Financial LLC 13G/A Amendment 2	2.5%	585,653	13G/A Amendment 2	11/12/2025 Event 9/30/2025
Magnetar Financial LLC	2.5%	585,653
Magnetar Capital Partners LP	2.5%	585,653
Supernova Management LLC	2.5%	585,653
David J. Snyderman	2.5%	585,653
Barclays PLC 13G	5.7%	1,339,895	13G	11/12/2025 Event 9/30/2025
Merus Global Investments, LLC 13G	5.8%	1,365,586	13G	9/26/2025 Event 9/19/2025
Harraden Circle Investments, LLC 13G	5.3%	1,231,259	13G	9/15/2025 Event 9/10/2025
Harraden Circle Investments, LLC	5.3%	1,231,259
Harraden Circle Investors GP, LP	5.3%	1,231,259
Harraden Circle Investors GP, LLC	5.3%	1,231,259
Harraden Circle Investors, LP	2.9%	676,832
Harraden Circle Special Opportunities, LP	1.4%	320,000
Harraden Circle Strategic Investments, LP	1.0%	234,427
Harraden Circle Concentrated, LP	0%	0
Frederick V. Fortmiller, Jr.	5.3%	1,231,259
Polar Asset Management Partners Inc. 13G/A Amendment 1	1.2%	280,569	13G/A Amendment 1	8/14/2025 Event 6/30/2025
Westchester Capital Management, LLC 13G/A Amendment 1	2.2%	516,137	13G/A Amendment 1	8/14/2025 Event 6/30/2025
Westchester Capital Management, LLC	2.2%	516,137
Virtus Investment Advisers, LLC	1.6%	380,080
The Merger Fund	1.5%	352,805
Merus Global Investments, LLC 13G/A Amendment 1	2.4%	568,298	13G/A Amendment 1	8/14/2025 Event 6/30/2025
AQR Capital Management, LLC 13G/A Amendment 2	1.1%	256,832	13G/A Amendment 2	8/13/2025 Event 6/30/2025
AQR Capital Management, LLC	1.1%	256,832
AQR Capital Management Holdings, LLC	1.1%	256,832
AQR Arbitrage, LLC	1.1%	256,832
Barclays PLC 13G/A Amendment 2	4.7%	1,100,170	13G/A Amendment 2	8/12/2025 Event 6/30/2025
Hudson Bay Capital Management LP 13G/A Amendment 2	0.6%	130,775	13G/A Amendment 2	8/8/2025 Event 6/30/2025
Hudson Bay Capital Management LP	0.6%	130,775
Sander Gerber	0.6%	130,775
Magnetar Financial LLC 13G/A Amendment 1	6.0%	1,410,000	13G/A Amendment 1	8/8/2025 Event 6/30/2025
Magnetar Financial LLC	6.0%	1,410,000
Magnetar Capital Partners LP	6.0%	1,410,000
Supernova Management LLC	6.0%	1,410,000
David J. Snyderman	6.0%	1,410,000
Merus Global Investments, LLC 13G	7.2%	1,682,958	13G	6/2/2025 Event 5/23/2025
Westchester Capital Management, LLC 13G	7.9%	1,855,000	13G	5/14/2025 Event 3/31/2025
Westchester Capital Management, LLC	7.9%	1,855,000
Virtus Investment Advisers, LLC	5.8%	1,366,019
The Merger Fund	5.4%	1,267,994
AQR Capital Management, LLC 13G/A Amendment 1	6.3%	1,465,928	13G/A Amendment 1	5/14/2025 Event 3/31/2025
AQR Capital Management, LLC	6.3%	1,465,928
AQR Capital Management Holdings, LLC	6.3%	1,465,928
AQR Arbitrage, LLC	6.3%	1,465,928
Goldman Sachs Group Inc 13G	6.9%	1,612,258	13G	5/9/2025 Event 3/31/2025
The Goldman Sachs Group, Inc.	6.9%	1,612,258
Goldman Sachs & Co. LLC	6.9%	1,612,258
Bank of Montreal /Can/ 13G/A Amendment 1	0.4%	102,900	13G/A Amendment 1	5/8/2025 Event 4/30/2025
Bank of Montreal	0.4%	102,900
Bank of Montreal Holding Inc.	0.4%	102,900
Bmo Nesbitt Burns Inc.	0.4%	102,900
Bank of Montreal /Can/ 13G	8.9%	2,082,900	13G	5/8/2025 Event 3/31/2025
Bank of Montreal	8.9%	2,082,900
Bank of Montreal Holding Inc.	8.9%	2,082,900
Bmo Nesbitt Burns Inc.	8.9%	2,082,900
Barclays PLC 13G/A Amendment 1	5.0%	1,180,833	13G/A Amendment 1	3/21/2025 Event 12/31/2024
Polar Asset Management Partners Inc. 13G	8.5%	1,980,000	13G	2/14/2025 Event 12/31/2024
Shaolin Capital Management LLC 13G	8.0%	1,872,900	13G	2/14/2025 Event 12/31/2024
Shaolin Capital Management LLC	8.0%	1,872,900
David Puritz	8.0%	1,872,900
AQR Capital Management, LLC 13G	8.9%	2,080,186	13G	2/14/2025 Event 12/31/2024
AQR Capital Management, LLC	8.9%	2,080,186
AQR Capital Management Holdings, LLC	8.9%	2,080,186
AQR Arbitrage, LLC	8.9%	2,080,186
GSR III Sponsor LLC 13G	21.1%	6,159,346	13G	2/12/2025 Event 12/31/2024
GSR III Sponsor LLC	21.1%	6,159,346
Gus Garcia	21.1%	6,159,346
Lewis Silberman	21.1%	6,159,346
Anantha Ramamurti	21.1%	6,159,346
Hudson Bay Capital Management LP 13G/A Amendment 1	6.4%	1,500,000	13G/A Amendment 1	2/10/2025 Event 12/31/2024
Hudson Bay Capital Management LP	6.4%	1,500,000
Sander Gerber	6.4%	1,500,000
Hudson Bay Capital Management LP 13G	6.4%	1,500,000	13G	2/10/2025 Event 12/31/2024
Barclays PLC 13G	5.0%	1,180,833	13G	2/7/2025 Event 12/31/2024

13F Holders by Quarter

Period	Filings	Shares, Excl. Options	Value, Excl. Options	Options Value
2025 Q4	2	32.1 k	$175 k	$0
2025 Q3	68	12.3 M	$126 M	$9.03 M
2025 Q2	68	14.5 M	$157 M	$201 k
2025 Q1	33	18.1 M	$182 M	$0
2024 Q4	18	11.2 M	$111 M	$0