Vicor (VICR) CEO sells 20,000 shares in pre-set Rule 10b5-1 plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
VICOR CORP Chairman and CEO Patrizio Vinciarelli reported open‑market sales of 20,000 shares of common stock on May 29, 2026. The sales were executed in 17 separate transactions at weighted average prices reported between $318.6600 and $341.9000, with individual trades occurring within narrow ranges.
The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2026, indicating they were pre‑scheduled. Following these sales, Vinciarelli directly holds 8,827,890 shares of Vicor common stock and indirectly holds 167,125 shares as trustee of an irrevocable trust established for the benefit of his child.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 20,000 shares ($6,557,429)
Net Sell
18 txns
Insider
VINCIARELLI PATRIZIO
Role
Chairman and CEO
Sold
20,000 shs ($6.56M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 200 | $318.665 | $64K |
| Sale | Common Stock | 397 | $321.461 | $128K |
| Sale | Common Stock | 1,724 | $322.7226 | $556K |
| Sale | Common Stock | 2,983 | $323.5067 | $965K |
| Sale | Common Stock | 1,261 | $324.9154 | $410K |
| Sale | Common Stock | 3,034 | $325.5904 | $988K |
| Sale | Common Stock | 1,200 | $326.6675 | $392K |
| Sale | Common Stock | 1,000 | $328.0256 | $328K |
| Sale | Common Stock | 1,000 | $329.6646 | $330K |
| Sale | Common Stock | 2,800 | $330.692 | $926K |
| Sale | Common Stock | 2,000 | $331.7875 | $664K |
| Sale | Common Stock | 516 | $333.6634 | $172K |
| Sale | Common Stock | 85 | $334.4462 | $28K |
| Sale | Common Stock | 1,000 | $336.166 | $336K |
| Sale | Common Stock | 400 | $337.045 | $135K |
| Sale | Common Stock | 237 | $340.2152 | $81K |
| Sale | Common Stock | 163 | $341.7466 | $56K |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 8,827,890 shares (Direct, null);
Common Stock — 167,125 shares (Indirect, See footnote)
Footnotes (1)
- These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the child of the reporting person. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $318.6600 to $318.6700. The reporting person undertakes to provide to Vicor Corporation, any security holder of Vicor Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (19) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $321.0700 to $322.0100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $322.1400 to $323.1100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $323.1700 to $324.0600. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $324.1900 to $325.1800. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $325.2100 to $326.0600. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $326.2200 to $327.1600. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $327.5600 to $328.5200. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $329.2200 to $330.1700. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $330.2200 to $331.2100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $331.2200 to $332.0100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $333.3100 to $333.8300. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $334.3900 to $334.5500. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $335.7000 to $336.3700. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $337.0000 to $337.1100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $340.0000 to $340.6300. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $341.0000 to $341.9000.
Key Figures
Shares sold: 20,000 shares
Sale price range: $318.6600–$341.9000
Direct holdings after sale: 8,827,890 shares
+3 more
6 metrics
Shares sold
20,000 shares
Total common stock sold on May 29, 2026
Sale price range
$318.6600–$341.9000
Weighted average prices across reported transactions
Direct holdings after sale
8,827,890 shares
Common stock directly owned following transactions
Indirect trust holdings
167,125 shares
Held as trustee of irrevocable trust
Number of sale transactions
17 transactions
Non-derivative open‑market sales on May 29, 2026
Net share change
-20,000 shares
Net buy/sell direction reported as net-sell
Key Terms
Rule 10b5-1 trading plan, weighted average price, irrevocable trust, open-market sale, +1 more
5 terms
Rule 10b5-1 trading plan financial
"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2026."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
irrevocable trust financial
"These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012."
An irrevocable trust is a legal arrangement where an owner transfers assets into a separate entity managed by a trustee and gives up the power to modify or reclaim those assets. For investors it matters because putting stock or other holdings into such a trust can change who controls and benefits from the assets, affect taxes and creditor protection, and influence how easy it is to sell or value those holdings—like placing valuables in a locked safe overseen by someone else.
open-market sale financial
"transaction_action: "open-market sale" for non-derivative transactions."
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
indirect ownership financial
"ownership_type: "indirect" and nature_of_ownership: "See footnote" for trust-held shares."
FAQ
What does the Form 4 reveal about Vinciarelli’s indirect holdings of VICR stock?
The Form 4 reports 167,125 shares held indirectly by Vinciarelli as trustee of the Patrizio Vinciarelli Irrevocable Trust U/A dated 12/21/2012. The trust was established for the benefit of his child, as described in the footnotes.
How many separate transactions make up Vinciarelli’s VICR stock sales on May 29, 2026?
The filing shows 17 separate open‑market sale transactions of Vicor common stock on May 29, 2026. Each row lists shares sold and a weighted average price, with footnotes detailing the specific price ranges for those grouped trades.