Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

CSP INC /MA/

CIK 0000356037CSPI· quarter ending 2026-06-30

Shares outstanding

10,080,645

as of 2026-08-12 · 10-Q cover page, filed 2026-08-14

Held by 13F filers

2,527,598

25.1% of shares outstanding

Holders

-4 vs 2026-03-31 · 12 new, 16 exited

Value

$20.1M

shares -14.1% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-14, as of 2026-08-12)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	CSPI · NASDAQ	10,080,645	2,527,598	25.1%	44	126389105

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	126389105	COM	44	2,527,598	10,080,645	25.1%	$20.1M	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (44 of 44 · 126389105)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	Visionary Wealth Advisors	801,088	7.95%	$6.4M	+16,277 (+2.1%)
2	VANGUARD CAPITAL MANAGEMENT LLC	354,154	3.51%	$2.8M	-276 (-0.1%)
3	DIMENSIONAL FUND ADVISORS LP	351,674	3.49%	$2.8M	-8,379 (-2.3%)
4	RENAISSANCE TECHNOLOGIES LLC	267,714	2.66%	$2.1M	-9,712 (-3.5%)
5	Savvy Advisors, Inc.	94,985	0.94%	$754K	NEW
6	GEODE CAPITAL MANAGEMENT, LLC	81,477	0.81%	$647K	-94,555 (-53.7%)
7	MILLENNIUM MANAGEMENT LLC	69,612	0.69%	$553K	NEW
8	BlackRock, Inc.	64,470	0.64%	$512K	-304,707 (-82.5%)
9	VANGUARD FIDUCIARY TRUST CO	46,500	0.46%	$369K	+91 (+0.2%)
10	BRIDGEWAY CAPITAL MANAGEMENT, LLC	46,145	0.46%	$366K	—
11	Bank of New York Mellon Corp	45,859	0.45%	$364K	-12,135 (-20.9%)
12	SEGALL BRYANT & HAMILL, LLC	38,448	0.38%	$305K	—
13	JANE STREET GROUP, LLC	36,139	0.36%	$287K	NEW
14	SUSQUEHANNA INTERNATIONAL GROUP, LLP	29,304	0.29%	$233K	NEW
15	STATE STREET CORP	25,559	0.25%	$203K	-48,730 (-65.6%)
16	Squarepoint Ops LLC	24,692	0.24%	$196K	NEW
17	Integrated Wealth Concepts LLC	23,623	0.23%	$188K	+62 (+0.3%)
18	JPMORGAN CHASE & CO	22,844	0.23%	$180K	-2,827 (-11.0%)
19	GOLDMAN SACHS GROUP INC	21,015	0.21%	$167K	NEW
20	Point72 Asset Management, L.P.	18,945	0.19%	$150K	NEW
21	NORTHERN TRUST CORP	17,721	0.18%	$141K	-49,731 (-73.7%)
22	CITADEL ADVISORS LLC	14,548	0.14%	$116K	-892 (-5.8%)
23	Qube Research & Technologies Ltd	13,162	0.13%	$105K	NEW
24	MORGAN STANLEY	7,282	0.07%	$58K	+1,048 (+16.8%)
25	Vanguard Global Advisers, LLC	3,246	0.03%	$26K	—
26	BNP PARIBAS FINANCIAL MARKETS	2,118	0.02%	$17K	+92 (+4.5%)
27	ROYAL BANK OF CANADA	1,592	0.02%	$13K	-1,300 (-45.0%)
28	UBS Group AG	1,575	0.02%	$13K	-180 (-10.3%)
29	FMR LLC	513	0.01%	$4K	-2,822 (-84.6%)
30	Tower Research Capital LLC (TRC)	423	0.00%	$3K	-2,351 (-84.8%)
31	BARCLAYS PLC	411	0.00%	$3K	-1,025 (-71.4%)
32	Arax Advisory Partners	387	0.00%	$3K	NEW
33	Russell Investments Group, Ltd.	121	0.00%	$961	-454 (-79.0%)
34	GAMMA Investing LLC	102	0.00%	$810	-524 (-83.7%)
35	SBI Securities Co., Ltd.	65	0.00%	$516	+51 (+364.3%)
36	EverSource Wealth Advisors, LLC	31	0.00%	$247	+11 (+55.0%)
37	Essential Partners LLC	19	0.00%	$151	+11 (+137.5%)
38	Allworth Financial LP	18	0.00%	$143	+7 (+63.6%)
39	IFP Advisors, Inc	5	0.00%	$40	+4 (+400.0%)
40	Covestor Ltd	4	0.00%	$0	NEW
41	ROTHSCHILD INVESTMENT LLC	3	0.00%	$24	+2 (+200.0%)
42	Caitong International Asset Management Co., Ltd	2	0.00%	$16	NEW
43	Fortitude Family Office, LLC	2	0.00%	$16	NEW
44	Farther Finance Advisors, LLC	1	0.00%	$8	-101,276 (-100.0%)

Exited since 2026-03-31 (16 filers; largest 16 shown)

VANGUARD PORTFOLIO MANAGEMENT LLC	−41,481
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	−19,242
NAVELLIER & ASSOCIATES INC	−10,000
NEW YORK STATE COMMON RETIREMENT FUND	−6,700
DEUTSCHE BANK AG\	−6,220
RHUMBLINE ADVISERS	−4,462
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	−3,434
WELLS FARGO & COMPANY/MN	−2,534
Police & Firemen's Retirement System of New Jersey	−2,533
Ameritas Investment Partners, Inc.	−708
Legal & General Group Plc	−628
CWM, LLC	−466
CITIGROUP INC	−358
NewEdge Advisors, LLC	−276
Sterling Capital Management LLC	−72
MAI Capital Management	−2

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Visionary Wealth Advisors	SCHEDULE 13G	2026-02-13	2025-12-31	764,888	7.7%
Dimensional Fund Advisors LP	SCHEDULE 13G/A	2025-04-15	2025-03-31	420,326	4.3%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.