Explore more topics
SEC Form 4 research

VICOR CORP insider transactions

Inspect VICOR CORP's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0000751978
Reporting owners
33
Officers and directors
31
Jump to a section

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-052026-10-01Davies Philip DS500$317.32Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-01 and its public availability date is 2026-10-05. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001193125-26-414076 ↗SEC accession 0001193125-26-414076 ↗SEC accession 0001193125-26-414076 ↗

Recent insider disclosures

Inspect all 50 displayed rows: Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-052026-10-01Davies Philip DS500$317.32Not reported
2026-10-052026-10-01Davies Philip DS300$316.26Not reported
2026-10-052026-10-01Davies Philip DS300$314.84Not reported
2026-10-052026-10-01Davies Philip DS100$313.2Not reported
2026-10-052026-10-01Davies Philip DS100$311.83Not reported
2026-10-052026-10-01Davies Philip DS272$308.49Not reported
2026-10-052026-10-01Davies Philip DS200$307.09Not reported
2026-10-052026-10-01Davies Philip DS400$322.03Not reported
2026-10-052026-10-01Davies Philip DS201$320.18Not reported
2026-10-052026-10-01Davies Philip DS299$319.67Not reported
2026-10-052026-10-01Davies Philip DS400$318.3Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS1,312$313.32Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS2,648$312.29Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS2,679$311.42Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS6,448$310.32Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS877$309.1Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS4,961$308.01Not reported
2026-10-052026-10-02VINCIARELLI PATRIZIOS1,075$306.93Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS2,100$316.86Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,300$315.78Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS700$314.71Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS500$313.75Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS400$311.81Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS300$311.23Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,600$308.79Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS2,300$308.24Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS900$330Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS100$324.98Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS600$323.37Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS900$322.4Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,100$321.57Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,800$320.1Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,700$319.01Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS2,400$318.05Not reported
2026-10-052026-10-01VINCIARELLI PATRIZIOS1,300$307.02Not reported
2026-09-042026-09-01Davies Philip DS100$184.85Not reported
2026-09-042026-09-01Davies Philip DS700$178.66Not reported
2026-09-042026-09-01Davies Philip DS1,100$177.63Not reported
2026-09-042026-09-01Davies Philip DS1,173$176.59Not reported
2026-08-202026-08-17Lavie ZmiraS908$250Not reported
2026-08-192026-08-17ANDERSON SAMUEL JS2,073$252.6Not reported
2026-08-062026-08-03Davies Philip DS100$216.04Not reported
2026-08-062026-08-03Davies Philip DS400$215.03Not reported
2026-08-062026-08-03Davies Philip DS1,372$214.02Not reported
2026-08-062026-08-03Davies Philip DS500$212.54Not reported
2026-08-062026-08-03Davies Philip DS100$209.42Not reported
2026-08-062026-08-03Davies Philip DS200$206.42Not reported
2026-08-062026-08-03Davies Philip DS100$203.91Not reported
2026-08-062026-08-03Davies Philip DS100$201.62Not reported
2026-08-062026-08-03Davies Philip DS200$200.06Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 31 displayed rows: Officers and directors in the directory

Scroll sideways to compare all columns. Select a heading to sort.

McNamara Michael000154581431
GRIFFIN LIAM0001215432185
ANDERSON SAMUEL J000119596636
ANSOUR MICHAEL00011948591
CARLSON JASON000120486428
CRILLY SEAN000165518018
D'Amico Andrew000183019599
Davies Philip D000151286886
Doyle Alvaro000182673016
EICHTEN ESTIA J0001111769147
Fendelet Quentin A.000191219632
GENDRON ROBERT000165466933
GERMAIN THOMAS A ST00011948571
GLAZER MARK A00011117722
Grava Nancy L000165486222
Gusinov Alex000165492530
HENDERSON H ALLEN00011117789
JEFFERY JOSEPH A00016548585
KELLEHER BARRY000111177062
Lavie Zmira00019390165
Morrison Kemble D000141150027
Nagel Richard J Jr000136408216
PRAGER JAY M00011117661
RICHARDSON DOUGLAS00011948516
RIDDIFORD DAVID T00011117688
Schmidt James F000186628162
Shen Zheng John00019411323
SIMMS JAMES A000125440245
Tuozzolo Claudio0001403540103
VINCIARELLI PATRIZIO0000901484845
ZENGILOWSKI RICHARD E00011948545
McNamara Michael ↗GRIFFIN LIAM ↗ANDERSON SAMUEL J ↗ANSOUR MICHAEL ↗CARLSON JASON ↗CRILLY SEAN ↗D'Amico Andrew ↗Davies Philip D ↗Doyle Alvaro ↗EICHTEN ESTIA J ↗Fendelet Quentin A. ↗GENDRON ROBERT ↗GERMAIN THOMAS A ST ↗GLAZER MARK A ↗Grava Nancy L ↗Gusinov Alex ↗HENDERSON H ALLEN ↗JEFFERY JOSEPH A ↗KELLEHER BARRY ↗Lavie Zmira ↗Morrison Kemble D ↗Nagel Richard J Jr ↗PRAGER JAY M ↗RICHARDSON DOUGLAS ↗RIDDIFORD DAVID T ↗Schmidt James F ↗Shen Zheng John ↗SIMMS JAMES A ↗Tuozzolo Claudio ↗VINCIARELLI PATRIZIO ↗ZENGILOWSKI RICHARD E ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

This issuer meets the currently published company-strategy eligibility rules.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.