Every Form 4 that Vicor Corp (VICR) 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 VICR 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 VICR filings page.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of a total of 23,179 shares of Vicor common stock on March 24, 2026, at weighted average prices of $179.0000, $180.0986, and $181.0021. These transactions were executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025. Following the sales, he directly holds 9,034,984 shares of common stock and indirectly holds 171,125 shares as trustee of an irrevocable trust established for the benefit of his child, indicating he remains a large shareholder.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of company stock. On March 23, 2026, he sold a total of 5,924 shares of Vicor common stock in two transactions at prices of $175.00 and $176.00 per share, as disclosed through weighted-average pricing.
These transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025, indicating they were pre-scheduled. After the sales, he directly owned 9,058,163 shares of common stock and also had 171,125 shares held indirectly through an irrevocable trust established for the benefit of his child.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of 44,076 shares of common stock on March 20, 2026. The shares were sold in multiple transactions at weighted average prices reported between $174.6395 and $188.8900 per share under a Rule 10b5-1 trading plan adopted on November 3, 2025.
Following these sales, he holds 9,064,087 shares directly and 171,125 shares indirectly as trustee of an irrevocable trust established for the benefit of his child. The transactions represent a small portion of his overall reported ownership.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of common stock on March 19, 2026. The trades were executed in multiple blocks at weighted-average prices ranging from about $172.00 to $191.97, as detailed in the price-range footnotes.
After these sales, Vinciarelli directly owns 9,108,163 Vicor shares and has indirect beneficial ownership of 171,125 additional shares held in an irrevocable trust established for his child. The filing states the transactions were made under a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025, indicating a scheduled, rather than discretionary, selling program.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of common stock on March 18, 2026. The transactions were executed in multiple tranches at weighted average prices ranging from $191.67 to $201.05, as detailed in the price range footnotes.
These sales were made pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025, indicating they were pre-arranged. After the sales, Vinciarelli directly owns 9,158,163 Vicor shares and indirectly reports 171,125 shares held in an irrevocable trust established for his child.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of a total of 50,000 shares of Common Stock on March 17, 2026. The shares were sold in multiple transactions at weighted average prices ranging from $185.75 to $196.41 per share.
After these sales, Vinciarelli directly owns 9,208,163 Vicor shares and also has 171,125 shares held indirectly as trustee of an irrevocable trust for the benefit of his child. The filing notes that the sales were made under a Rule 10b5-1 trading plan adopted on November 3, 2025, indicating they were pre-scheduled rather than discretionary trades.
Vicor Corp executive Michael McNamara exercised stock options and immediately sold the resulting shares. He exercised options to acquire a total of 7,174 shares of common stock at exercise prices of $60.61 and $41.61 per share, then sold 7,174 shares in open-market transactions at $190.0699 per share. After these transactions, he directly owned 18,138 shares of Vicor common stock.
Vicor Corp Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of Common Stock on March 16, 2026. The sales were executed at weighted average prices ranging from $178.0600 to $189.9100 per share under a Rule 10b5-1 trading plan adopted on November 3, 2025.
Following these transactions, Vinciarelli directly holds 9,258,163 shares of Vicor common stock, and an additional 171,125 shares are held indirectly in an irrevocable trust for the benefit of his child, where he serves as trustee.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli sold 50,000 shares of common stock in open-market transactions. The trades occurred on March 13, 2026 at weighted average prices that, across the reported blocks, ranged from $165.03 to $176.15 per share.
Following these sales, Vinciarelli directly owns 9,308,163 Vicor shares. The filing also reports 171,125 shares held indirectly through an irrevocable trust established for the benefit of his child. The sales were executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025.
Vicor Corporation director Estia J. Eichten reported an open-market sale of 2,000 shares of common stock at $174.00 per share on March 13, 2026. After the sale, Eichten directly holds 188,838 shares. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 11, 2025, indicating it was scheduled in advance rather than timed discretionarily.
Vicor Corporation director Estia J. Eichten sold 38,587 shares of common stock in open-market trades on March 12, 2026, at weighted-average prices ranging from about $162.69 to $173.22. The transactions were executed under a pre-arranged Rule 10b5-1 trading plan, and Eichten now holds 190,838 shares directly.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of common stock on March 12, 2026 under a pre-arranged Rule 10b5-1 trading plan. The shares were sold in multiple transactions at weighted average prices between $163.11 and $173.22 per share.
After these sales, he directly holds 9,358,163 Vicor shares, reflecting a small reduction in his position, and also indirectly holds 171,125 shares as trustee of an irrevocable trust for his child. The filing classifies him as a director, Chairman, CEO, and more than ten percent owner, so these trades provide visibility into insider activity while still leaving him with a very large stake in the company.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of Common Stock on March 11, 2026. The trades were executed under a Rule 10b5-1 trading plan adopted on November 3, 2025, at weighted-average prices ranging from $167.75 to $180.54 per share.
After these sales, he held 9,408,163 shares directly and 171,125 shares indirectly as trustee of an irrevocable trust for his child.
Vicor Corporation director and CFO James F. Schmidt exercised stock options for 15,500 shares of common stock at exercise prices of $93.33 and $48.38 per share. He then sold 15,500 shares in open-market transactions between $169.43 and $180.56 per share under a Rule 10b5-1 trading plan, leaving no shares of common stock directly held.
Vicor Corp director and CFO James F. Schmidt sold 875 shares of Common Stock in an open-market transaction. The sale took place at a price of $91.9238 per share and was reported as a direct ownership transaction. Following this sale, Schmidt held 0 shares of Vicor common stock directly.
Vicor Corporation’s Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of common stock on March 10, 2026. The shares were sold in multiple transactions at weighted average prices ranging from $169.7000 to $182.4700, pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025. After these sales, he holds 9,458,163 shares directly and an additional 171,125 shares indirectly as trustee of an irrevocable trust established for his child.
Vicor Corp Chairman and CEO Patrizio Vinciarelli reported open-market sales of 50,000 shares of common stock on March 9, 2026. The sales were executed in multiple trades at weighted-average prices ranging from $158.61 to $170.20, under a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025.
Following these transactions, he directly holds 9,508,163 Vicor shares and indirectly holds 171,125 shares as trustee of an irrevocable trust for the benefit of his child. The filing shows planned, programmatic selling by a long-term, large shareholder who continues to retain a substantial position.
Vicor Corporation’s Chairman and CEO Patrizio Vinciarelli reported open‑market sales of 50,000 shares of common stock on March 6, 2026. The transactions were executed in multiple trades at prices reported between $159.56 and $177.62 per share.
The filing states these sales were made under a Rule 10b5‑1 trading plan adopted on November 3, 2025, indicating they were pre‑scheduled. After the sales, Vinciarelli holds 9,558,163 shares directly and an additional 171,125 shares indirectly as trustee of an irrevocable trust for his child.
Vicor Corp VP Philip D. Davies reported option exercises and share sales. On March 5, 2026, he exercised several non-qualified stock options, acquiring common shares at exercise prices including $41.6100, $60.6100, and $75.4300 per share.
That same day, he sold 5,419 shares of Vicor common stock in multiple open-market transactions under a Rule 10b5-1 trading plan adopted on November 21, 2025, at weighted average prices ranging from $177.1800 to $202.2600. Following these transactions, he directly owned 1,920 shares of common stock and held option positions including 15,358, 7,752, and 1,827 option shares in separate grants.
Vicor Corporation Chairman and CEO Patrizio Vinciarelli, a more than ten percent owner, reported open-market sales of 50,000 shares of Vicor common stock on March 5, 2026. The sales were executed in multiple transactions at weighted average prices ranging from about $176.26 to $203.24, as detailed in the price ranges provided.
After these transactions, he directly owned 9,617,851 shares of Vicor common stock and also had 171,125 shares held indirectly as trustee of the Patrizio Vinciarelli Irrevocable Trust established for the benefit of his child. The filing notes that these sales were carried out under a Rule 10b5-1 trading plan adopted on November 3, 2025, which is a pre-arranged program for selling shares over time.
Vicor Corp corporate vice president of engineering Sean Crilly reported multiple stock option exercises and share sales in company stock. On March 5, 2026, he exercised options into 1,640 shares of common stock at exercise prices of $75.43, $41.61, and $60.61 per share. He then sold 1,640 shares of common stock in open-market transactions at an average price of $180.3243 per share, leaving him with 9,729 shares of Vicor common stock held directly after the reported transactions.
Vicor Corp Chairman and CEO Patrizio Vinciarelli reported selling 50,000 shares of Vicor common stock in open-market transactions on March 4, 2026. The sales were executed in multiple blocks at weighted average prices ranging from $195.26 to $208.18 per share.
After these trades, he directly holds 9,658,163 Vicor shares. An additional 171,125 shares are held indirectly, where he is Trustee of the Patrizio Vinciarelli Irrevocable Trust established for the benefit of his child. The filing notes the sales were made under a Rule 10b5-1 trading plan adopted on November 3, 2025.
Vicor director Zheng John Shen reported option and share transactions. He exercised 1,217 non-qualified stock options on March 4, 2026, acquiring 1,217 shares of common stock at $32.89 per share. He then sold 1,217 common shares at $205.75 per share, leaving 4,864 options and no directly held common shares.
VICOR CORP corporate vice president and chief accounting officer Quentin A. Fendelet reported option exercises and share sales. On March 2, 2026, he exercised 2,000 Non Qualified Stock Options at $71.74 per share, receiving 2,000 shares of common stock. That same day, he sold a total of 2,299 shares of common stock in open-market transactions at $204.7209 per share, reducing his directly held common stock to 0 shares while retaining 2,000 options following the transactions.
Vicor Corp corporate vice president of engineering for power systems Sean Crilly reported an open-market sale of 6,000 shares of Vicor common stock. The sale took place on February 27, 2026 at a price of $197.7319 per share. After this transaction, Crilly directly owned 9,729 shares of Vicor common stock. A footnote explains that this balance includes 197 shares acquired under the Vicor Corporation 2017 Employee Stock Purchase Plan on February 27, 2026.
Vicor Corp corporate vice president of engineering Alex Gusinov reported an open-market sale of common stock. On February 26, 2026, he sold 3,344 shares at $200 per share. After this transaction, he directly owned 6,996 shares of Vicor common stock.
Vicor Corp corporate vice president and director Claudio Tuozzolo exercised non-qualified stock options for 2,535 shares on February 25, 2026, receiving common stock at an exercise price of $69.04 per share. He then sold a total of 4,643 common shares in open-market transactions at prices up to $199.088 per share, and directly held 23,544 shares after these trades.
Vicor Corp corporate vice president and director Claudio Tuozzolo reported a mix of option exercises and share sales. On February 24, 2026, he exercised two non-qualified stock options for 800 and 995 shares of common stock at exercise prices of $100.0000 and $60.3700 per share.
On the same date, he sold blocks of common stock totaling 3,501, 800, and 995 shares in open-market transactions at prices of $179.4404 and $179.4169 per share. After these transactions, Tuozzolo directly owned 25,652 shares of Vicor common stock.
Vicor Corp executive Kemble D. Morrison, VP-Corporate Controller, reported option-related transactions and share sales. On 2026-02-24, he exercised non-qualified stock options to acquire 2,572 shares of common stock at exercise prices of 75.4300, 60.6100, and 69.0400 per share, then sold 2,572 shares of common stock in open-market transactions at 180.0828 per share. Following these sales, his reported directly owned common stock position in these transactions was reduced to zero.
Vicor Corp VP of Human Resources Nancy L. Grava exercised options and immediately sold the resulting shares. She converted 1,816 and 800 options into common stock at exercise prices of $69.04 and $38.95 per share, then sold all 2,616 shares on the same date at $187.00 per share, leaving no reported directly held common shares.
Vicor Corp VP and CIO Alvaro Doyle reported a series of stock option exercises and related share sales on February 23, 2026. He exercised non-qualified stock options for a total of 7,913 shares of common stock at strike prices ranging from $24.15 to $75.43 per share.
On the same day, he sold 7,913 common shares in open-market transactions at an average price of about $172.8335 per share, and his directly held common stock position ended at 42 shares following these trades.
VICOR CORP director Samuel J. Anderson sold shares in an open-market trade. On this transaction, he sold 3,791 shares of common stock at a price of $171.44 per share and held 6,107 shares of common stock directly after the sale.
Vicor Corp director Zheng John Shen reported option exercises and related share sales. He exercised non-qualified stock options to acquire 1,508 shares of common stock at $53.0700 per share and 995 shares at $60.3700 per share.
On the same day, he sold 1,508 shares and 995 shares of Vicor common stock in open-market transactions at a reported price of $175.9564 per share, resulting in net sales of 2,503 shares. These transactions reflect a combination of derivative exercises and immediate stock sales by a company director.
Vicor Corp corporate vice president and director Claudio Tuozzolo reported an open-market sale of company stock. He sold 4,469 shares of Vicor common stock at a price of $174.6037 per share. After this transaction, he directly holds 29,153 shares of Vicor common stock.
VICOR CORP corporate vice president and chief accounting officer Quentin A. Fendelet reported option and share transactions in a Form 4. On February 23, 2026, he exercised a non-qualified stock option for 2,000 shares, resulting in the acquisition of 2,000 shares of common stock at a price of $48.38 per share. On the same date, he then completed an open-market sale of 2,000 shares of common stock at a price of $177.72 per share. After these transactions, his directly held common stock position reported in this filing was 0 shares.
Vicor Corporation director Andrew D'Amico reported an option exercise and share sale involving a small number of shares. On January 20, 2026, he exercised a non-qualified stock option for 200 shares of Vicor common stock at an exercise price of $100 per share, acquiring 200 shares. The same day, he sold 200 shares of common stock at $155 per share, leaving him with 0 shares of common stock held directly after the reported transactions.
The filing shows that 200 non-qualified stock options remained beneficially owned directly following the derivative transaction. The sale was effected under a Rule 10b5-1 trading plan that the reporting person adopted on September 12, 2024, indicating the trades were made according to a pre-arranged plan rather than discretionary timing.
Vicor director Samuel J. Anderson exercised stock options and increased his direct shareholdings. On 01/15/2026, he exercised a non‑qualified stock option with a $100 exercise price for 800 shares of Vicor common stock, acquiring 800 shares at $100 per share.
These options were originally granted on 06/25/2021 under the company’s Amended and Restated 2000 Stock Option and Incentive Plan and vest over five years, with an expiration date of 06/25/2031. Following this transaction, Anderson directly holds 9,898 shares of Vicor common stock and 200 non‑qualified stock options.
Vicor Corp director Andrew D'Amico reported an option exercise and related share sale. On 01/15/2026 he exercised a non-qualified stock option for 200 shares of common stock at $100 per share, increasing his directly held common shares to 200 and his option holdings to 400. On the same day, he sold 200 common shares at $150 per share, leaving him with 0 shares of common stock directly owned and 400 non-qualified stock options outstanding. The sale was carried out under a Rule 10b5-1 trading plan adopted on September 12, 2024.
Vicor Corporation insider Philip D. Davies, VP Global Sales & Marketing and a director, reported an option exercise and share acquisition. On January 7, 2026, he exercised 1,920 non-qualified stock options at an exercise price of $41.61 per share, receiving 1,920 shares of common stock, all held directly.
The options were originally granted on May 2, 2023 under Vicor’s Amended and Restated 2000 Stock Option and Incentive Plan, vesting over five years, and expiring two years from each vesting date. After this transaction, Davies directly holds 1,920 common shares and 17,278 stock options.
Vicor Corp director Andrew D'Amico exercised stock options for 400 shares at $100 and sold 400 common shares in two trades at $140 and $145 on January 5, 2026.
The Form 4 shows 600 stock options remaining after these transactions. The sales were carried out under a Rule 10b5-1 trading plan adopted on September 12, 2024, indicating they were pre-scheduled rather than discretionary market-timing trades.
Vicor Corp officer Alex Gusinov reported a sale of company stock. On 12/15/2025, he sold 3,844 shares of Vicor Corp common stock at a price of $97.3114 per share, coded as a sale transaction on Form 4.
Following this transaction, he directly beneficially owns 10,340 shares of Vicor Corp common stock, according to the filing.
Vicor Corp insider Michael McNamara, a director and officer serving as General Manager Mfg. Ops, reported option-related transactions in the company’s common stock dated 12/11/2025.
He exercised non-qualified stock options to acquire 2,626 shares at $69.04 and 1,611 shares at $31.05, and on the same date sold 2,626 shares at $101.1988 and 1,611 shares at $101.2805.
Following these trades, he beneficially owned 18,138 shares of Vicor common stock directly and held 10,000 non-qualified stock options exercisable at $69.04, which expire on 06/24/2030.
Vicor Corporation insider Patrizio Vinciarelli, the company’s chairman, CEO and 10% owner, reported open-market sales of common stock executed under a Rule 10b5-1 trading plan adopted on December 10, 2024. On 11/12/2025, he sold 10,000 shares at $100.1818 per share, followed by 5,724 shares at $101.1026 on 12/10/2025, and two sales on 12/11/2025 of 4,276 and 1,900 shares at $101.6477 and $102.0802 per share, respectively.
After these transactions, he beneficially owned 9,828,363 shares of Vicor common stock directly, and 171,125 shares indirectly as trustee of an irrevocable trust established for the benefit of his child.
Vicor Corporation director Jason Carlson reported a series of stock option exercises and same-day stock sales dated 12/10/2025. He exercised several non-qualified stock option grants with exercise prices ranging from $19.35 to $68.48 per share, receiving equivalent amounts of Vicor common stock.
On the same date, he sold the acquired shares in multiple transactions at a reported price of $100.2389 per share. After each reported sale, the number of directly held Vicor common shares was listed as zero, indicating no directly owned common stock at the end of these transactions.
VICOR CORP (VICR) reported an insider stock sale by a corporate officer. Corp. Vice President of Engineering Alex Gusinov sold 1,571 shares of common stock on 11/21/2025 at a price of $86.05 per share, in a transaction coded "S" for sale. After this trade, Gusinov beneficially owns 14,184 shares of Vicor common stock in direct ownership form. The filing was made on a Form 4 by a single reporting person, with the signature provided by an attorney-in-fact acting for the officer.
Vicor Corp director reports option exercise and share sale
A Vicor Corp director reported exercising a non-qualified stock option for 2,000 shares of common stock at an exercise price of $39.25 per share on 11/17/2025, acquiring 2,000 shares. On the same date, the director reported selling 2,000 shares of common stock at a price of $87.69 per share, leaving 0 shares of common stock directly owned after the transactions.
Following these transactions, the director reported beneficial ownership of 6,000 non-qualified stock options. The filing states that the sale was effected under a Rule 10b5-1 trading plan adopted on September 12, 2024, and notes that the options expire one year from each vesting date.
Vicor Corp (VICR) reported insider activity by a corporate vice president/director on 11/12/2025. The insider exercised non-qualified stock options for 6,404 shares at strike prices of $31.05, $32.89, $53.07, $60.61, and $75.43, and sold 6,404 shares at $94.5799.
Following the transactions, the insider directly owns 33,622 shares of common stock. The activity reflects same-day option exercises (code M) paired with open market sales (code S) at the stated prices.
Vicor Corporation (VICR) director Andrew D'Amico reported option exercises and same-day open-market sales on November 12, 2025.
He exercised non-qualified stock options for 577 shares at $69.04 and sold 577 shares at $98.44; exercised another 577 shares at $69.04 and sold 577 shares at $100; and exercised 754 shares at $53.07 and sold 754 shares at $99. The filing notes these sales were effected under a Rule 10b5-1 trading plan adopted on September 12, 2024.
After these transactions, the option grant with a $69.04 exercise price shows 0 derivative securities remaining, while the grant with a $53.07 exercise price shows 3,015 derivative securities remaining.
Vicor (VICR) reported an insider transaction by Corp. VP - Marketing, Robert Gendron. On 11/05/2025, he sold 5,374 shares of common stock at a price of $94 per share (Transaction Code S).
Following this sale, the filing lists 0 shares beneficially owned, reported as direct ownership. The filing indicates it was submitted by one reporting person.
Vicor Corp (VICR): Form 4 activity — Corporate Vice President Eng. Alex Gusinov exercised stock options on 11/04/2025 (code M), acquiring 616, 2,015, and 444 shares at exercise prices of $60.61, $41.61, and $75.43, respectively.
After these transactions, he beneficially owned 15,755 shares, held directly. Related options remained outstanding as derivative securities, and the filing notes that options expire two years from each vesting date.