NASDAQ · ACFN

Acorn Energy, Inc.

Closing price · Nov 13, 2026 $14.93

Latest quarter · ended Sep 30, 2026

Sales grew and cash improved

descriptionFiled Nov 5, 2026
Revenue growthFaster
+4.6%
Quarter ended Dec 31, 2024: +56.8% sales vs. a year beforeQuarter ended Mar 31, 2025: +45.3% sales vs. a year beforeQuarter ended Jun 30, 2025: +54.9% sales vs. a year beforeQuarter ended Sep 30, 2025: −18.8% sales vs. a year beforeQuarter ended Dec 31, 2025: −32.6% sales vs. a year beforeQuarter ended Mar 31, 2026: −28.1% sales vs. a year beforeQuarter ended Jun 30, 2026: −29.4% sales vs. a year beforeQuarter ended Sep 30, 2026: +4.6% sales vs. a year before
Dec '24Sep '26
$2.59M vs. $2.48M a year ago
Gross marginBetter
80.5%
Quarter ended Dec 31, 2024: 72.4% gross marginQuarter ended Mar 31, 2025: 75.1% gross marginQuarter ended Jun 30, 2025: 74.9% gross marginQuarter ended Sep 30, 2025: 78.5% gross marginQuarter ended Dec 31, 2025: 80.1% gross marginQuarter ended Mar 31, 2026: 80.2% gross marginQuarter ended Jun 30, 2026: 82.4% gross marginQuarter ended Sep 30, 2026: 80.5% gross margin
Dec '24Sep '26
vs. 78.5% a year ago
Cash from operationsBetter
$999K
Quarter ended Dec 31, 2024: $166K cash from operationsQuarter ended Mar 31, 2025: $271K cash from operationsQuarter ended Jun 30, 2025: $629K cash from operationsQuarter ended Sep 30, 2025: $895K cash from operationsQuarter ended Dec 31, 2025: $295K cash from operationsQuarter ended Mar 31, 2026: $53K cash from operationsQuarter ended Jun 30, 2026: $224K cash from operationsQuarter ended Sep 30, 2026: $999K cash from operations
Dec '24Sep '26
+12% from $895K a year ago
Share countSteady
+1.2%
Quarter ended Dec 31, 2024: 2.49M sharesQuarter ended Mar 31, 2025: 2.49M sharesQuarter ended Jun 30, 2025: 2.5M sharesQuarter ended Sep 30, 2025: 2.5M sharesQuarter ended Dec 31, 2025: 2.51M sharesQuarter ended Mar 31, 2026: 2.51M sharesQuarter ended Jun 30, 2026: 2.51M sharesQuarter ended Sep 30, 2026: 2.53M shares
Dec '24Sep '26
2.53M shares vs. 2.5M a year ago

Numbers come from the company's own 10-Q and 10-K reports filed with the SEC. Each bar is one quarter, oldest on the left. The colored bar is the latest. Hover over or tap a bar to see its number.

Smart money pulse

What insiders and funds are doing

Mixed Insiders: as of Nov 13 Funds: as of Jun 30, 2026
−1000+100 0
  • info
    No real insider sales in 12 months. Planned 10b5-1 sales and tax withholding are left out.

−100 means everyone selling, +100 everyone buying. This is data, not advice.

How the Pulse works

Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.

Who owns it

13 funds report owning ACFN, up from 12

Holdings as of Jun 30, 2026
New4
Added1
Held7
Trimmed1
Sold out2

Insider trades · last 12 months

Real buys and sales

No open-market buys or sales by officers or directors in the last 12 months. Hidden: 1 tax withholding, 4 option exercises. Press All filings to see them.

● Open-market buy● Open-market sale
CEOCFOOther officersDirectorsDecJanFebMarAprMayJunJulAugSepOctNovOption exercise · Feb 5 · $9.3K · 3 peopleOption exercise · Jun 23 · $8.4KShares withheld for tax · Jun 23 · $8.41K
CEOCFOOther officersDirectorsJunJulAugSepOctNovOption exercise · Jun 23 · $8.4KShares withheld for tax · Jun 23 · $8.41K

Last 6 months. A wider screen shows 12.

Showing 0 real trades. Hidden: 1 tax withholding, 4 option exercises. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.

Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.

Top holders

Biggest funds in ACFN

As of Jun 30, 2026
FundOwnsValueChange
Vanguard Capital Management LLC1.5%$647K+1%
Geode Capital Management, LLC0.7%$310K+1%
Citadel Advisors LLC0.6%$278KNew
Bridgeway Capital Management, LLC0.5%$213KNew
Mink Brook Asset Management LLC0.4%$170KSame

"Owns" is shares reported divided by shares outstanding.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast