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.

ACORN ENERGY, INC.

CIK 0000880984ACFN· quarter ending 2026-06-30

Shares outstanding

2,509,618

as of 2026-08-04 · 10-Q cover page, filed 2026-08-06

Held by 13F filers

110,949

4.4% of shares outstanding

Holders

+2 vs 2026-03-31 · 3 new, 1 exited

Value

$1.9M

shares +42.0% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-08-04)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ACFN · NASDAQ	2,509,618	110,949	4.4%	13	004848206

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
	004848206	COM NEW	13	110,949	2,509,618	4.4%	$1.9M	—	NPORT	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 (13 of 13 · 004848206)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	VANGUARD CAPITAL MANAGEMENT LLC	37,981	1.51%	$647K	+340 (+0.9%)
2	GEODE CAPITAL MANAGEMENT, LLC	18,168	0.72%	$310K	+259 (+1.4%)
3	CITADEL ADVISORS LLC	16,321	0.65%	$278K	NEW
4	BRIDGEWAY CAPITAL MANAGEMENT, LLC	12,500	0.50%	$213K	NEW
5	Mink Brook Asset Management LLC	10,000	0.40%	$170K	—
6	VANGUARD FIDUCIARY TRUST CO	8,428	0.34%	$144K	+60 (+0.7%)
7	BlackRock, Inc.	5,403	0.22%	$92K	NEW
8	Access Investment Management LLC	1,200	0.05%	$20K	—
9	OSAIC HOLDINGS, INC.	351	0.01%	$6K	-1,545 (-81.5%)
10	Tower Research Capital LLC (TRC)	327	0.01%	$6K	+157 (+92.4%)
11	NATIONAL BANK OF CANADA /FI/	245	0.01%	$4K	—
12	Federation des caisses Desjardins du Quebec	25	0.00%	$426	—
13	WELLS FARGO & COMPANY/MN	0	0.00%	$3	—

Exited since 2026-03-31 (1 filers; largest 1 shown)

UBS Group AG

−693

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.

No structured 13D/13G filings (XML filings began Dec 2024).

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.