VICR: Davies Philip D discloses securities transactions

By AlphaYouPublished Oct 5, 2026Form 4

Stocks in this disclosure

Reported activity

Davies Philip D

Reporting filer

Davies Philip D reported Exercise or conversion in VICOR CORP: 856 units of Common Stock, dated 2026-10-01. The full Form 4 contains 15 transaction entries.

Disclosed: Oct 5, 2026

Reported details

15 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	Davies Philip D	2026-10-01	M	Exercise or conversion	856	41.6100	2,776	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: M equity Swap Involved: false transaction Shares: 856 transaction Price Per Share: 41.6100 transaction Acquired Disposed Code: A shares Owned Following Transaction: 2776 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	M	Exercise or conversion	2216	33.9600	4,992	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: M equity Swap Involved: false transaction Shares: 2216 transaction Price Per Share: 33.9600 transaction Acquired Disposed Code: A shares Owned Following Transaction: 4992 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	200	307.0850	4,792	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 200 transaction Price Per Share: 307.0850 id: F2 transaction Acquired Disposed Code: D shares Owned Following Transaction: 4792 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	272	308.4879	4,520	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 272 transaction Price Per Share: 308.4879 id: F3 transaction Acquired Disposed Code: D shares Owned Following Transaction: 4520 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	100	311.8300	4,420	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 100 transaction Price Per Share: 311.8300 id: F4 transaction Acquired Disposed Code: D shares Owned Following Transaction: 4420 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	100	313.2000	4,320	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 100 transaction Price Per Share: 313.2000 id: F5 transaction Acquired Disposed Code: D shares Owned Following Transaction: 4320 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	300	314.8367	4,020	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 300 transaction Price Per Share: 314.8367 id: F6 transaction Acquired Disposed Code: D shares Owned Following Transaction: 4020 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	300	316.2567	3,720	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 300 transaction Price Per Share: 316.2567 id: F7 transaction Acquired Disposed Code: D shares Owned Following Transaction: 3720 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	500	317.3240	3,220	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 500 transaction Price Per Share: 317.3240 id: F8 transaction Acquired Disposed Code: D shares Owned Following Transaction: 3220 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	400	318.2950	2,820	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 400 transaction Price Per Share: 318.2950 id: F9 transaction Acquired Disposed Code: D shares Owned Following Transaction: 2820 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	299	319.6653	2,521	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 299 transaction Price Per Share: 319.6653 id: F10 transaction Acquired Disposed Code: D shares Owned Following Transaction: 2521 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	201	320.1776	2,320	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 201 transaction Price Per Share: 320.1776 id: F11 transaction Acquired Disposed Code: D shares Owned Following Transaction: 2320 direct Or Indirect Ownership: D
Common Stock	Davies Philip D	2026-10-01	S	Sale	400	322.0250	1,920	4 days	Filed terms security Title: Common Stock transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: S equity Swap Involved: false id: F1 transaction Shares: 400 transaction Price Per Share: 322.0250 id: F12 transaction Acquired Disposed Code: D shares Owned Following Transaction: 1920 direct Or Indirect Ownership: D
Non Qualified Stock Option (derivative)	Davies Philip D	2026-10-01	M	Exercise or conversion	856	0	7,678	4 days	Filed terms security Title: Non Qualified Stock Option conversion Or Exercise Price: 41.6100 transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: M equity Swap Involved: false transaction Shares: 856 transaction Price Per Share: 0 transaction Acquired Disposed Code: D exercise Date: 2026-05-02 expiration Date: 2028-05-02 underlying Security Title: Common Stock underlying Security Shares: 856 shares Owned Following Transaction: 7678 direct Or Indirect Ownership: D
Non Qualified Stock Option (derivative)	Davies Philip D	2026-10-01	M	Exercise or conversion	2216	0	35,646	4 days	Filed terms security Title: Non Qualified Stock Option conversion Or Exercise Price: 33.9600 transaction Date: 2026-10-01 transaction Form Type: 4 transaction Code: M equity Swap Involved: false transaction Shares: 2216 transaction Price Per Share: 0 transaction Acquired Disposed Code: D exercise Date: 2025-05-03 expiration Date: 2027-05-03 underlying Security Title: Common Stock underlying Security Shares: 2216 shares Owned Following Transaction: 35646 direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: M
Action: Exercise or conversion
Quantity: 856
Price: 41.6100
Following holdings: 2,776
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 856
transaction Price Per Share: 41.6100
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 2776
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: M
Action: Exercise or conversion
Quantity: 2216
Price: 33.9600
Following holdings: 4,992
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 2216
transaction Price Per Share: 33.9600
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 4992
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 200
Price: 307.0850
Following holdings: 4,792
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 200
transaction Price Per Share: 307.0850
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4792
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 272
Price: 308.4879
Following holdings: 4,520
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 272
transaction Price Per Share: 308.4879
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4520
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 100
Price: 311.8300
Following holdings: 4,420
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 100
transaction Price Per Share: 311.8300
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4420
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 100
Price: 313.2000
Following holdings: 4,320
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 100
transaction Price Per Share: 313.2000
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4320
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 300
Price: 314.8367
Following holdings: 4,020
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 300
transaction Price Per Share: 314.8367
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4020
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 300
Price: 316.2567
Following holdings: 3,720
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 300
transaction Price Per Share: 316.2567
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3720
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 500
Price: 317.3240
Following holdings: 3,220
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 500
transaction Price Per Share: 317.3240
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3220
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 400
Price: 318.2950
Following holdings: 2,820
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 400
transaction Price Per Share: 318.2950
id: F9
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2820
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 299
Price: 319.6653
Following holdings: 2,521
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 299
transaction Price Per Share: 319.6653
id: F10
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2521
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 201
Price: 320.1776
Following holdings: 2,320
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 201
transaction Price Per Share: 320.1776
id: F11
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2320
direct Or Indirect Ownership: D

Common Stock

Owner: Davies Philip D
Date: 2026-10-01
Code: S
Action: Sale
Quantity: 400
Price: 322.0250
Following holdings: 1,920
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 400
transaction Price Per Share: 322.0250
id: F12
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 1920
direct Or Indirect Ownership: D

Non Qualified Stock Option (derivative)

Owner: Davies Philip D
Date: 2026-10-01
Code: M
Action: Exercise or conversion
Quantity: 856
Price: 0
Following holdings: 7,678
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Non Qualified Stock Option
conversion Or Exercise Price: 41.6100
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 856
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2026-05-02
expiration Date: 2028-05-02
underlying Security Title: Common Stock
underlying Security Shares: 856
shares Owned Following Transaction: 7678
direct Or Indirect Ownership: D

Non Qualified Stock Option (derivative)

Owner: Davies Philip D
Date: 2026-10-01
Code: M
Action: Exercise or conversion
Quantity: 2216
Price: 0
Following holdings: 35,646
Reporting delay: 4 days
Filed terms and references: Filed terms
security Title: Non Qualified Stock Option
conversion Or Exercise Price: 33.9600
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 2216
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2025-05-03
expiration Date: 2027-05-03
underlying Security Title: Common Stock
underlying Security Shares: 2216
shares Owned Following Transaction: 35646
direct Or Indirect Ownership: D

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
Davies Philip D: Corp. VP-Global Sales & Mktg., Director.
The filing reports a Rule 10b5-1 trading plan.
F1: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.
F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $306.9900 and $307.1800. 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 (12) to this Form 4.
F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $308.3000 to $308.6400.
F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $311.8300 to $311.8300.
F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $313.2000 to $313.2000.
F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $314.6200 to $315.0700.
F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $315.6600 to $316.6000.
F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $317.0200 to $317.9000.
F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $318.0200 to $318.9200.
F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $319.0700 to $320.0000.
F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $320.0700 to $320.7000.
F12: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $321.7100 to $322.3200.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

Davies Philip D

2026-10-01

Exercise or conversion

856

41.6100

2,776

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 856
transaction Price Per Share: 41.6100
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 2776
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Exercise or conversion

2216

33.9600

4,992

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 2216
transaction Price Per Share: 33.9600
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 4992
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

200

307.0850

4,792

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 200
transaction Price Per Share: 307.0850
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4792
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

272

308.4879

4,520

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 272
transaction Price Per Share: 308.4879
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4520
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

100

311.8300

4,420

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 100
transaction Price Per Share: 311.8300
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4420
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

100

313.2000

4,320

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 100
transaction Price Per Share: 313.2000
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4320
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

300

314.8367

4,020

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 300
transaction Price Per Share: 314.8367
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 4020
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

300

316.2567

3,720

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 300
transaction Price Per Share: 316.2567
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3720
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

500

317.3240

3,220

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 500
transaction Price Per Share: 317.3240
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3220
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

400

318.2950

2,820

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 400
transaction Price Per Share: 318.2950
id: F9
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2820
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

299

319.6653

2,521

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 299
transaction Price Per Share: 319.6653
id: F10
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2521
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

201

320.1776

2,320

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 201
transaction Price Per Share: 320.1776
id: F11
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 2320
direct Or Indirect Ownership: D

Common Stock

Davies Philip D

2026-10-01

Sale

400

322.0250

1,920

4 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: S
equity Swap Involved: false
id: F1
transaction Shares: 400
transaction Price Per Share: 322.0250
id: F12
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 1920
direct Or Indirect Ownership: D

Non Qualified Stock Option (derivative)

Davies Philip D

2026-10-01

Exercise or conversion

856

7,678

4 days

Filed terms

security Title: Non Qualified Stock Option
conversion Or Exercise Price: 41.6100
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 856
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2026-05-02
expiration Date: 2028-05-02
underlying Security Title: Common Stock
underlying Security Shares: 856
shares Owned Following Transaction: 7678
direct Or Indirect Ownership: D

Non Qualified Stock Option (derivative)

Davies Philip D

2026-10-01

Exercise or conversion

2216

35,646

4 days

Filed terms

security Title: Non Qualified Stock Option
conversion Or Exercise Price: 33.9600
transaction Date: 2026-10-01
transaction Form Type: 4
transaction Code: M
equity Swap Involved: false
transaction Shares: 2216
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2025-05-03
expiration Date: 2027-05-03
underlying Security Title: Common Stock
underlying Security Shares: 2216
shares Owned Following Transaction: 35646
direct Or Indirect Ownership: D

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

Davies Philip D: Corp. VP-Global Sales & Mktg., Director.

The filing reports a Rule 10b5-1 trading plan.

F1: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $306.9900 and $307.1800. 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 (12) to this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $308.3000 to $308.6400.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $311.8300 to $311.8300.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $313.2000 to $313.2000.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $314.6200 to $315.0700.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $315.6600 to $316.6000.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $317.0200 to $317.9000.

F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $318.0200 to $318.9200.

F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $319.0700 to $320.0000.

F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $320.0700 to $320.7000.

F12: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $321.7100 to $322.3200.