13 institutions reported holding $1.9M of ACORN ENERGY INC (ACFN) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($790,345), GEODE CAPITAL MANAGEMENT, LLC ($309,742), CITADEL ADVISORS LLC ($277,947), BRIDGEWAY CAPITAL MANAGEMENT, LLC ($212,875), Mink Brook Asset Management LLC ($170,300). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $790,345 | 46,409 | Added |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $309,742 | 18,168 | Added |
| 3 | CITADEL ADVISORS LLC | $277,947 | 16,321 | New |
| 4 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $212,875 | 12,500 | New |
| 5 | Mink Brook Asset Management LLC | $170,300 | 10,000 | Hold |
| 6 | BlackRock, Inc. | $92,013 | 5,403 | New |
| 7 | Access Investment Management LLC | $20,436 | 1,200 | Hold |
| 8 | OSAIC HOLDINGS, INC. | $5,973 | 351 | Trimmed |
| 9 | Tower Research Capital LLC (TRC) | $5,569 | 327 | Added |
| 10 | NATIONAL BANK OF CANADA /FI/ | $4,116 | 245 | Hold |
| 11 | Federation des caisses Desjardins du Quebec | $426 | 25 | Hold |
| 12 | UBS Group AG | $0 | 0 | Exited |
| 13 | HUNTINGTON NATIONAL BANK | $0 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30