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

Name: Who Owns ARCIW? 45 Institutions Hold $3.64M (Q2 2026)
Creator: ko.io

Who owns Archimedes Tech Spac Ptnrs I (ARCIW)? 45 institutions reported holding $3.64M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Boothbay Fund Management, LLC ($250,250), Centiva Capital, LP ($243,329), Magnetar Financial LLC ($225,000).

Rank	Institution	Value	Shares	Change
1	BOOTHBAY FUND MANAGEMENT, LLC	$250,250	25,000	New
2	Centiva Capital, LP	$243,329	324,439	New
3	Magnetar Financial LLC	$225,000	300,000	Hold
4	Linden Advisors LP	$187,649	299,999	Hold
5	TENOR CAPITAL MANAGEMENT Co., L.P.	$187,500	250,000	Hold
6	Alberta Investment Management Corp	$187,500	250,000	New
7	MILLENNIUM MANAGEMENT LLC	$178,125	237,500	Added
8	Governors Lane LP	$156,375	250,000	Hold
9	K2 PRINCIPAL FUND, L.P.	$154,418	308,837	Added
10	ADAGE CAPITAL PARTNERS GP, L.L.C.	$150,000	200,000	Trimmed
11	SONA ASSET MANAGEMENT (US) LLC	$150,000	200,000	Hold
12	AQR Arbitrage LLC	$142,052	189,403	New
13	Verition Fund Management LLC	$140,400	187,200	Trimmed
14	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	$103,125	137,500	Hold
15	Polar Asset Management Partners Inc.	$96,975	129,300	Added
16	MOORE CAPITAL MANAGEMENT, LP	$93,750	125,000	Hold
17	Shaolin Capital Management LLC	$86,040	114,720	Added
18	RIVERNORTH CAPITAL MANAGEMENT, LLC	$81,250	125,000	New
19	D. E. Shaw & Co., Inc.	$79,688	106,250	Hold
20	BNP PARIBAS FINANCIAL MARKETS	$76,995	123,093	New
21	Periscope Capital Inc.	$63,238	101,100	Hold
22	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	$62,550	100,000	New
23	MMCAP International Inc. SPC	$56,250	75,000	New
24	Radcliffe Capital Management, L.P.	$50,906	81,385	Added
25	HBK INVESTMENTS L P	$46,876	62,501	Hold

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