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Vicor (VICR) VP Philip Davies exercises options, sells 3,072 shares under 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Vicor Corp director and Corp. VP of Sales Philip D. Davies exercised stock options and sold shares in a planned series of trades. He exercised options for 1,461 shares at $30.98 and 1,611 shares at $31.05 to acquire 3,072 shares of common stock. On the same date, he sold 3,072 shares of common stock in multiple open-market transactions at weighted average prices ranging from about $158.00 to $167.75, under a pre-arranged Rule 10b5-1 trading plan adopted on November 21, 2025. After these transactions, Davies directly owns 1,920 shares of Vicor common stock.

Positive

  • None.

Negative

  • None.

Insights

Routine option exercise-and-sell under a pre-set 10b5-1 plan.

Philip D. Davies, a director and Corp. VP of Sales at Vicor Corp, exercised options for 3,072 shares at strike prices of $30.98 and $31.05, then sold 3,072 shares in open-market trades the same day.

The sales occurred at weighted average prices between roughly $158.00 and $167.75, pursuant to a Rule 10b5-1 trading plan adopted on November 21, 2025. Such plans pre-schedule trades, so the timing carries limited informational value about management’s short-term view.

Following the transactions, Davies holds 1,920 shares of common stock directly. From an investment-thesis perspective this looks like a liquidity and portfolio management event rather than a fundamental change in insider alignment, so it is best viewed as neutral.

Insider Davies Philip D
Role Corp. VP - Sales
Sold 3,072 shs ($502K)
Type Security Shares Price Value
Exercise Non Qualified Stock Option 1,461 $0.00 --
Exercise Non Qualified Stock Option 1,611 $0.00 --
Exercise Common Stock 1,461 $30.98 $45K
Exercise Common Stock 1,611 $31.05 $50K
Sale Common Stock 472 $158.2874 $75K
Sale Common Stock 300 $159.35 $48K
Sale Common Stock 100 $160.34 $16K
Sale Common Stock 100 $162.61 $16K
Sale Common Stock 1,073 $164.4556 $176K
Sale Common Stock 627 $165.6851 $104K
Sale Common Stock 300 $166.49 $50K
Sale Common Stock 100 $167.75 $17K
Holdings After Transaction: Non Qualified Stock Option — 8,539 shares (Direct); Common Stock — 3,381 shares (Direct)
Footnotes (1)
  1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.0000 to $158.7900. 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 (2) through (9) 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 $159.2900 to $159.4300. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.3400 to $160.3400 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.6100 to $162.6100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.8500 to $164.8100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.2800 to $166.0100. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.3100 to $166.6000. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.7500 to $167.7500.
Options exercised at $30.98 1,461 shares Non-qualified stock option exercise at $30.98 per share
Options exercised at $31.05 1,611 shares Non-qualified stock option exercise at $31.05 per share
Total shares exercised 3,072 shares Aggregate derivative exercises on 2026-04-01
Total shares sold 3,072 shares Open-market sales on 2026-04-01
Sale price range $158.00–$167.75 Weighted average price ranges across multiple transactions
Shares held after 1,920 shares Direct common stock ownership after all reported trades
Non Qualified Stock Option financial
"security_title: "Non Qualified Stock Option" for derivative transactions"
Rule 10b5-1 trading plan regulatory
"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted..."
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.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Davies Philip D
(Last)(First)(Middle)
25 FRONTAGE RD.
(Street)
ANDOVER MASSACHUSETTS 01810
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
VICOR CORP [ vicr ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Corp. VP - Sales
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock04/01/2026M1,461A$30.983,381D
Common Stock04/01/2026M1,611A$31.054,992D
Common Stock04/01/2026S(1)472D$158.2874(2)4,520D
Common Stock04/01/2026S(1)300D$159.35(3)4,220D
Common Stock04/01/2026S(1)100D$160.34(4)4,120D
Common Stock04/01/2026S(1)100D$162.61(5)4,020D
Common Stock04/01/2026S(1)1,073D$164.4556(6)2,947D
Common Stock04/01/2026S(1)627D$165.6851(7)2,320D
Common Stock04/01/2026S(1)300D$166.49(8)2,020D
Common Stock04/01/2026S(1)100D$167.75(9)1,920D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non Qualified Stock Option$30.9804/01/2026M1,46109/06/202409/06/2029Common Stock1,461$08,539D
Non Qualified Stock Option$31.0504/01/2026M1,61106/28/202406/28/2029Common Stock1,611$00D
Explanation of Responses:
1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.0000 to $158.7900. 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 (2) through (9) to this Form 4.
3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.2900 to $159.4300.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.3400 to $160.3400
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.6100 to $162.6100.
6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.8500 to $164.8100.
7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.2800 to $166.0100.
8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.3100 to $166.6000.
9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.7500 to $167.7500.
/s/Kemble D. Morrison Attorney in fact for Philip Davies04/02/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Vicor (VICR) insider Philip D. Davies do in this Form 4?

Philip D. Davies exercised stock options for 3,072 Vicor shares, then sold 3,072 shares in multiple open-market trades the same day. These transactions were made under a pre-arranged Rule 10b5-1 trading plan, indicating a scheduled liquidity event rather than a spontaneous decision.

How many Vicor (VICR) shares did Philip D. Davies sell and at what prices?

Davies sold 3,072 shares of Vicor common stock in several open-market transactions. The weighted average sale prices ranged from about $158.00 to $167.75 per share, according to the Form 4 footnotes describing the various price intervals for the individual trades.

What stock options did Philip D. Davies exercise in the Vicor (VICR) Form 4?

He exercised non-qualified stock options covering 1,461 shares at a $30.98 exercise price and 1,611 shares at a $31.05 exercise price. These option exercises converted derivative positions into common shares, which were then sold in the same-day transactions reported in the filing.

How many Vicor (VICR) shares does Philip D. Davies own after these transactions?

After the reported option exercises and sales, Philip D. Davies directly owns 1,920 shares of Vicor common stock. This post-transaction holding figure comes from the final line of the non-derivative transaction table included in the Form 4 insider trading report.

Was the Vicor (VICR) insider sale by Philip D. Davies under a Rule 10b5-1 plan?

Yes. A footnote states the sale was effected under a Rule 10b5-1 trading plan adopted on November 21, 2025. Such plans pre-set trading parameters, making the timing of these sales more indicative of planning and diversification than of new information-driven decisions.

Does the Vicor (VICR) Form 4 show any remaining stock options for Philip D. Davies?

The filing’s derivative transactions show options exercised for 3,072 shares, and the derivative summary is empty afterward. That indicates these particular non-qualified stock options were fully exercised in the reported transactions, leaving no remaining position from these specific option grants.