15 institutions reported holding $1.3M of ACORN ENERGY INC (ACFN) in SEC 13F filings for 2026-03-31. Largest institutional holders: VANGUARD CAPITAL MANAGEMENT LLC ($639,897), GEODE CAPITAL MANAGEMENT, LLC ($304,772), Mink Brook Asset Management LLC ($170,000), VANGUARD FIDUCIARY TRUST CO ($142,256), OSAIC HOLDINGS, INC. ($32,232). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | $639,897 | 37,641 | New |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $304,772 | 17,909 | Added |
| 3 | Mink Brook Asset Management LLC | $170,000 | 10,000 | New |
| 4 | VANGUARD FIDUCIARY TRUST CO | $142,256 | 8,368 | New |
| 5 | OSAIC HOLDINGS, INC. | $32,232 | 1,896 | Added |
| 6 | Access Investment Management LLC | $20,400 | 1,200 | Added |
| 7 | UBS Group AG | $11,781 | 693 | New |
| 8 | NATIONAL BANK OF CANADA /FI/ | $4,116 | 245 | Hold |
| 9 | Tower Research Capital LLC (TRC) | $2,890 | 170 | Trimmed |
| 10 | Federation des caisses Desjardins du Quebec | $425 | 25 | Hold |
| 11 | Western Wealth Management, LLC | $32 | 2 | New |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 13 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
| 14 | HUNTINGTON NATIONAL BANK | $0 | 1 | Hold |
| 15 | MORGAN STANLEY | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31