Acorn Energy ACFN Institutional Ownership

NASDAQ ACFN

$19.64 -0.36 (-1.80%)

As of: Oct 1, 2026 · 2:29 PM EDT

Institutions by Trading Activity

13 Institutions

Increased 7 53.8%

Unchanged 5 38.5%

Reduced 1 7.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

4.42%

▲+1.31 pp QoQ

Shares Held by Institutions

110.95K

of 2.51Mn outstanding

▲+43.25% QoQ

Shares Outstanding

2.51Mn

2.40Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+33.50K

accumulated since last quarter

Value of Holdings

$2.22Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Acorn Energy, Inc. (NASDAQ:ACFN) has 13 institutional investors that have filed 13F reports for the period ending June 2026.

These investors collectively held 4.4% of Acorn Energy's outstanding shares in June 2026, up from 3.1% in March 2026.
They increased total shares held in Acorn Energy by 43.25% from the prior quarter, while the number of investors in ACFN stayed flat year over year.
During the quarter, 7 of these 13 funds increased positions in ACFN, 1 reduced exposure, and 5 held steady.
Institutional investors collectively held 110.95K shares in Acorn Energy as of June 2026, up by 33.49K shares quarter on quarter, and with no net change year over year.
VANGUARD CAPITAL MANAGEMENT LLC holds the largest position in ACFN at 37.98K shares as of June 30, 2026, or 1.51% of shares outstanding.
The largest buyers of Acorn Energy for the quarter ending June 2026 were CITADEL ADVISORS LLC (16.32K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (12.5K), BlackRock, Inc. (5.4K), VANGUARD CAPITAL MANAGEMENT LLC (340), GEODE CAPITAL MANAGEMENT, LLC (259).
Leading sellers of Acorn Energy shares for the quarter ending June 2026 were OSAIC HOLDINGS, INC. (1.54K).
Per Business Quant data, the top 10 holders of Acorn Energy for the quarter ending June 2026 are VANGUARD CAPITAL MANAGEMENT LLC (37.98K), GEODE CAPITAL MANAGEMENT, LLC (18.17K), CITADEL ADVISORS LLC (16.32K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (12.5K), Mink Brook Asset Management LLC (10.0K), VANGUARD FIDUCIARY TRUST CO (8.43K), BlackRock, Inc. (5.4K), Access Investment Management LLC (1.2K), OSAIC HOLDINGS, INC. (351), Tower Research Capital LLC (TRC) (327).

Form 13F Holdings

13 Institutional Holders

Report period 30 Jun, 2026

Total shares held 110.95K

Of outstanding 4.42%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	37,981	1.51%	▲340	+0.90%	$646.82K
2	GEODE CAPITAL MANAGEMENT, LLC	0001214717	18,168	0.72%	▲259	+1.45%	$309.74K
3	CITADEL ADVISORS LLC	0001423053	16,321	0.65%	▲16,321	0.00%	$277.95K
4	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	12,500	0.50%	▲12,500	0.00%	$212.88K
5	Mink Brook Asset Management LLC	0002052205	10,000	0.40%	0	0.00%	$170.30K
6	VANGUARD FIDUCIARY TRUST CO	0000933478	8,428	0.34%	▲60	+0.72%	$143.53K
7	BlackRock, Inc.	0002012383	5,403	0.22%	▲5,403	0.00%	$92.01K
8	Access Investment Management LLC	0002010477	1,200	0.05%	0	0.00%	$20.44K
9	OSAIC HOLDINGS, INC.	0001677044	351	0.01%	▼1,545	-81.49%	$5.97K
10	Tower Research Capital LLC (TRC)	0001533421	327	0.01%	▲157	+92.35%	$5.57K
11	NATIONAL BANK OF CANADA /FI/	0000926171	245	0.01%	0	0.00%	$4.12K
12	Federation des caisses Desjardins du Quebec	0002022297	25	0.00%	0	0.00%	$426
13	Wells Fargo & Company/Mn	0000072971	0	0.00%	0	0.00%	$3