ACORN ENERGY, INC. (ACFN) — Institutional Holders, Q2 2026
14 institutional investment managers reported a ACFN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.9M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ACFN in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- CITADEL ADVISORSNew · +16,321 sh+$277.9K
- BRIDGEWAY CAPITAL MANAGEMENTNew · +12,500 sh+$212.9K
- BlackRockNew · +5,403 sh+$92.0K
- VANGUARD CAPITAL MANAGEMENTAdded · +340 sh+$5.8K
- GEODE CAPITAL MANAGEMENTAdded · +259 sh+$4.4K
Biggest sellers
- OSAICTrimmed · -1,545 sh-$26.3K
- UBS Group AGSold out · -693 sh-$11.8K
- Western Wealth ManagementSold out · -2 sh-$34.00
ACFN 13F holders ranked 1–14 of 14
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT#1 · 37,981 sh | 37,981 | $646.8K | 0.00% | +0.9% |
| 2 | GEODE CAPITAL MANAGEMENT#2 · 18,168 sh | 18,168 | $309.7K | 0.00% | +1.4% |
| 3 | CITADEL ADVISORS#3 · 16,321 sh | 16,321 | $277.9K | 0.00% | New |
| 4 | BRIDGEWAY CAPITAL MANAGEMENT#4 · 12,500 sh | 12,500 | $212.9K | <0.01% | New |
| 5 | Mink Brook Asset Management#5 · 10,000 sh | 10,000 | $170.3K | 0.08% | 0.0% |
| 6 | VANGUARD FIDUCIARY#6 · 8,428 sh | 8,428 | $143.5K | 0.00% | +0.7% |
| 7 | BlackRock#7 · 5,403 sh | 5,403 | $92.0K | 0.00% | New |
| 8 | Access Investment Management#8 · 1,200 sh | 1,200 | $20.4K | — | 0.0% |
| 9 | OSAIC#9 · 351 sh | 351 | $6.0K | 0.00% | -81.5% |
| 10 | Tower Research Capital (TRC)#10 · 327 sh | 327 | $5.6K | <0.01% | +92.4% |
| 11 | NATIONAL BANK OF CANADA#11 · 245 sh | 245 | $4.1K | 0.00% | 0.0% |
| 12 | Federation des caisses Desjardins du Quebec#12 · 25 sh | 25 | $426.00 | 0.00% | 0.0% |
| 13 | WELLS FARGO & COMPANY#13 · 0 sh | 0 | $3.00 | 0.00% | New |
| 14 | HUNTINGTON NATIONAL BANK#14 · 1 sh | 1 | $0.00 | 0.00% | 0.0% |
Funds that sold out of ACFN in Q2 2026 (2)
Held ACFN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| UBS Group AG693 sh | 693 | $11.8K |
| Western Wealth Management2 sh | 2 | $32.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.