Acorn Energy, Inc.
ACFN- Exchange
- Nasdaq
- Industry
- Services-Engineering Services
- SEC CIK
- 0000880984
No open-market purchases or sales by Acorn Energy, Inc. insiders were filed in the last 90 days; 14 institutions reported holding it in 13F filings for Q2 2026, worth $1.89M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Acorn Energy, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 14
- +2 vs. Q1 2026
- Shares held
- 111.0K
- +32.8K (+42.0%) vs. Q1 2026
- Total value
- $1.89M
- +$561.0K (+42.2%) vs. Q1 2026
- New holders
- 3
- 4 more added
- Sold out
- 1
- 1 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACFN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 14 | $1.89M |
| Q1 2026 | 12 | $1.33M |
| Q4 2025 | 12 | $1.04M |
| Q3 2025 | 16 | $2.39M |
| Q2 2025 | 1 | $0 |
| Q1 2025 | 1 | $0 |
| Q4 2024 | 1 | $0 |
| Q3 2024 | 1 | $0 |
| Q2 2024 | 1 | $0 |
| Q1 2024 | 1 | $0 |
| Q4 2023 | 1 | $0 |
| Q3 2023 | 1 | $0 |
| Q2 2023 | 1 | $0 |
| Q1 2023 | 1 | $0 |
| Q4 2022 | 1 | $0 |
| Q3 2022 | 1 | $0 |
| Q2 2022 | 2 | $9.00K |
| Q1 2022 | 2 | $5.00K |
| Q4 2021 | 2 | $11.0K |
| Q3 2021 | 3 | $13.0K |
| Q2 2021 | 2 | $11.0K |
| Q1 2021 | 2 | $12.0K |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Acorn Energy, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 37,981 | $646.8K | 0.00% | +340+0.9% | Added |
| Geode Capital Management, LLC | 18,168 | $309.7K | 0.00% | +259+1.4% | Added |
| Citadel Advisors LLC | 16,321 | $277.9K | 0.00% | +16,321 | New |
| Bridgeway Capital Management, LLC | 12,500 | $212.9K | 0.00% | +12,500 | New |
| Mink Brook Asset Management LLC | 10,000 | $170.3K | 0.08% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 8,428 | $143.5K | 0.00% | +60+0.7% | Added |
| BlackRock, Inc. | 5,403 | $92.0K | 0.00% | +5,403 | New |
| Access Investment Management LLC | 1,200 | $20.4K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 351 | $5.97K | 0.00% | −1,545−81.5% | Reduced |
| Tower Research Capital LLC (TRC) | 327 | $5.57K | 0.00% | +157+92.4% | Added |
| National Bank of Canada | 245 | $4.12K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 25 | $426 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 0 | $3 | 0.00% | 0 | Unchanged |
| Huntington National Bank | 1 | $0 | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 0 | $0 | 0.00% | −693−100.0% | Sold out |