Every Form 4 that Acorn Energy, Inc. (ACFN) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ACFN and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ACFN filings page.
ACORN ENERGY, INC. Chief Financial Officer Clifford Tracy Simmons exercised stock options and settled the cost in shares rather than cash. He exercised options for 1,875 shares of common stock at $4.48 per share and, through net share settlement, 515 shares valued at $16.33 per share were disposed of to cover the aggregate exercise price. Following these transactions, he directly holds 4,360 shares of common stock.
Acorn Energy director exercises stock options and adds shares
Acorn Energy director Samuel M. Zentman exercised 625 stock options at an exercise price of $4.96 per share on February 5, 2026, receiving the same number of common shares. These options were originally granted on February 5, 2019 under the company’s Amended and Restated 2006 Stock Incentive Plan for his Board service.
Following this transaction, Zentman directly owns 7,242 shares of Acorn Energy common stock. The option position reported in this filing was fully exercised, leaving 0 derivative securities of this grant outstanding.
Acorn Energy director Michael Osterer reported an option exercise and related share holdings. On February 5, 2026, he exercised 625 stock options with a conversion price of $4.96 per share, acquiring 625 shares of common stock at $4.96 each.
Following this transaction, he held 126,211 shares of Acorn Energy common stock directly. The filing also reports 52,083 shares of common stock held indirectly by UE Systems Inc., over which Mr. Osterer shares voting and dispositive power.
Acorn Energy director Gary Mohr exercised stock options for 625 shares of common stock on 02/05/2026. The options had a $4.96 exercise price and were granted under the company’s Amended and Restated 2006 Stock Incentive Plan for Board service.
Following the transaction, Mohr directly owns 17,661 shares of Acorn Energy common stock. He also has indirect beneficial ownership of additional shares, including 52,083 held by UE Systems Inc., 664 held by an IRA, and 17 held by his son, over which he shares voting and dispositive power.
Acorn Energy director Michael Osterer was granted 3,125 stock options on January 19, 2026 under the company’s compensation policy for non-employee directors. The options have an exercise price of $19.02 per share and were reported as directly owned following the grant.
One-fourth of the options are immediately exercisable, with additional one-fourth portions becoming exercisable on April 1, 2026, July 1, 2026 and October 1, 2026. The options expire on the earlier of January 1, 2033 or 18 months after Osterer ceases serving as a director, officer, employee or consultant.
Acorn Energy director Peter Rabover was granted 3,125 stock options on 01/19/2026 as part of the company’s compensation policy for non-employee directors. The options have an exercise price of $19.02 per share and are held directly by Rabover.
One-fourth of the options are immediately exercisable, with additional one-fourth portions becoming exercisable on 04/01/2026, 07/01/2026 and 10/01/2026. The options expire on the earlier of 01/01/2033 or 18 months after Rabover ceases to be a director, officer, employee or consultant of the company. Following this grant, he beneficially owns 3,125 derivative securities linked to Acorn Energy common stock.
Acorn Energy, Inc. director stock option grant: On 01/19/2026, director Samuel M. Zentman received a grant of stock options for 3,125 shares of Acorn Energy common stock at a conversion/exercise price of $19.02 per share. The grant was made under the company’s compensation policy for non-employee directors.
One-fourth of these options are exercisable immediately, with additional one-fourth portions becoming exercisable on 04/01/2026, 07/01/2026, and 10/01/2026. The options expire on the earlier of 01/01/2033 or 18 months after Zentman ceases to serve as a director, officer, employee, or consultant. Following this grant, he beneficially owns 3,125 derivative securities directly.
Acorn Energy CFO Clifford Tracy Simmons reported a grant of 25,000 stock options on common stock, dated 01/19/2026. The options have an exercise price of $19.02 per share and were granted for no cash consideration. They were issued pursuant to a consulting agreement between Acorn Energy and Tracy Clifford Consulting, LLC.
According to the vesting terms, one-twelfth of the options vested and became exercisable immediately, with the remaining options vesting in eleven equal quarterly installments beginning 04/01/2026. The options expire on the earlier of 01/01/2033 or 18 months after Simmons ceases to serve as a director, officer, employee, or consultant of the company.
Acorn Energy, Inc. insider Jan H. Loeb, who serves as President, CEO, director, and a 10% owner, reported receiving a grant of stock options on 01/19/2026. The filing shows an award of 25,000 stock options for Acorn common stock at an exercise price of $19.02 per share, granted for no cash payment under a consulting agreement with the company.
One-twelfth of these options vested and became exercisable immediately, with the remaining portion vesting in eleven equal quarterly installments beginning 4/1/26. The options expire on the earlier of 1/1/33 or 18 months after Loeb is no longer a director, officer, employee, or consultant. Following this grant, Loeb beneficially owns 25,000 derivative securities in the form of these options, held directly.
Acorn Energy, Inc. granted a new stock option award to director Gary Mohr. On 01/19/2026, he received options to purchase 3,125 shares of Acorn Energy common stock at an exercise price of $19.02 per share, granted under the company’s compensation policy for non-employee directors. One-fourth of the options are exercisable immediately, with additional one-fourths becoming exercisable on 04/01/2026, 07/01/2026, and 10/01/2026. The options expire on the earlier of 01/01/2033 or 18 months after Mohr ceases serving as a director, officer, employee, or consultant.