ARCIU — Archimedes Tech Spac Ptnrs I Institutional Holders · Q2 2026

Name: Who Owns ARCIU? 30 Institutions Hold $47.3M (Q2 2026)
Creator: ko.io

Who owns Archimedes Tech Spac Ptnrs I (ARCIU)? 30 institutions reported holding $47.26M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: LMR Partners LLP ($12.7M), Tudor Investment Corp Et Al ($6.6M), Toronto Dominion Bank ($6.6M).

Rank	Institution	Value	Shares	Change
1	LMR Partners LLP	$12.7M	1.2M	Hold
2	TUDOR INVESTMENT CORP ET AL	$6.6M	650,000	Hold
3	TORONTO DOMINION BANK	$6.6M	646,217	Added
4	OMERS ADMINISTRATION Corp	$4.9M	480,000	Hold
5	ARISTEIA CAPITAL, L.L.C.	$4.1M	400,779	Added
6	Lineage Point Capital LP	$3.0M	288,776	Added
7	BlueCrest Capital Management Ltd	$2.8M	275,000	Hold
8	MILLENNIUM MANAGEMENT LLC	$1.8M	179,743	Trimmed
9	Qube Research & Technologies Ltd	$1.5M	150,000	Hold
10	Calamos Advisors LLC	$1.3M	124,000	Hold
11	Westchester Capital Management, LLC	$1.0M	100,000	Hold
12	Clear Street Group Inc.	$349,069	34,256	Added
13	HRT FINANCIAL LP	$256,000	25,000	Added
14	GLAZER CAPITAL, LLC	$110,000	10,523	New
15	Tuttle Capital Management, LLC	$109,413	10,769	Added
16	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	$0	0	Exited
17	BNP PARIBAS FINANCIAL MARKETS	$0	0	Exited
18	AQR Arbitrage LLC	$0	0	Exited
19	MMCAP International Inc. SPC	$0	0	Exited
20	PRELUDE CAPITAL MANAGEMENT, LLC	$0	0	Exited
21	RIVERNORTH CAPITAL MANAGEMENT, LLC	$0	0	Exited
22	Alberta Investment Management Corp	$0	0	Exited
23	Bulldog Investors, LLP	$0	0	Exited
24	PICTON MAHONEY ASSET MANAGEMENT	$0	0	Exited
25	BOOTHBAY FUND MANAGEMENT, LLC	$0	0	Exited

Source: SEC Form 13F filings · as of 2026-06-30