// company-profile
Acorn Energy, Inc.
ACFNExchangeNasdaqSectorServices-Engineering ServicesInc.DEFilings32Insiders6
// api This Acorn Energy, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for ACFN in the last 90 days.
Institutional Ownership
Top 13F-HR holders of Acorn Energy, Inc. as of 2026-03-31
Total reported AUM
$1.2M
QoQ change
+13.6%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$639,897
38K shares
#2
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
$247,057
15K shares
#3
Mink Brook Asset Management LLC
CIK 2052205
$170,000
10K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Feb 5, 2026 | Osterer Michael | ACFN | Option Exercise | 625 | $0.00 | $0K |
| Feb 5, 2026 | Osterer Michael | ACFN | Option Exercise | 625 | $4.96 | $3K |
| Feb 5, 2026 | Mohr Gary | ACFN | Option Exercise | 625 | $0.00 | $0K |
| Feb 5, 2026 | Mohr Gary | ACFN | Option Exercise | 625 | $4.96 | $3K |
| Feb 5, 2026 | ZENTMAN SAMUEL M | ACFN | Option Exercise | 625 | $4.96 | $3K |
40 more transactions hidden
Free account · No credit card required
Building something? Get API access →
Popular companies on Form4API
Browse insider trading activity for other actively-filed companies.