VICR SEC Filing News — Vicor Corporation

Latest SEC filings for Vicor Corporation (VICR) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-05.

Vicor Corporation, together with its subsidiaries, designs, develops, manufactures, and markets modular power components and power systems for converting electrical power for use in electrically powered devices in the United States, Europe, the Asia Pacific, and internationally. The company offers a range of brick-format DC-DC converters; complementary components that provide AC line rectification, input filtering, power factor correction, and transient protection; and input and output voltage, …
Sector: Technology Industry: Electronic Components Market Cap: $9.0B CIK: 751978
20
Total Filings
0
Bullish Classifications
10
Bearish Classifications
10
Insider Transactions
3
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for VICR currently lean bearish. Of the 20 filing records displayed, 10 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
VICR Filing Activity Snapshot 2026-07-21 — 2026-10-05
Insider Transactions (Form 4)
0 buys vs 8 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$6.32M
VINCIARELLI PATRIZIO (Director, Chairman & CEO, 10% Owner) · 2026-10-05
20,000 shares · Form 4
Form 144 Notices
6
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 10 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 10 filings in this group are Form 4s for Vicor Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 10 insider filings shown, the breakdown is 8 open-market sale and 2 option exercise. 8 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×8
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Option exercise ×2
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Form 4 Open-market sale Insider Selling 2026-10-05

VICR insider Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) sold 3,072 shares (~$971.9K)

Davies Philip D, listed as Director, Corp. VP-Global Sales & Mktg. at VICOR CORP, reported an open-market sale of 3,072 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 856 $41.61 $35.6K
M Option exercise 2,216 $33.96 $75.3K
S Open-market sale 200 $307.08 $61.4K
S Open-market sale 272 $308.49 $83.9K
S Open-market sale 100 $311.83 $31.2K
S Open-market sale 100 $313.20 $31.3K
S Open-market sale 300 $314.84 $94.5K
S Open-market sale 300 $316.26 $94.9K
S Open-market sale 500 $317.32 $158.7K
S Open-market sale 400 $318.30 $127.3K
S Open-market sale 299 $319.67 $95.6K
S Open-market sale 201 $320.18 $64.4K
S Open-market sale 400 $322.02 $128.8K
M Option exercise derivative · Non Qualified Stock Option 856 — —
M Option exercise derivative · Non Qualified Stock Option 2,216 — —
Filing: Form 4 (Insider Transaction) Insider: Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) Shares: 3,072 Est. Value: $971.9K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-10-05

VICR insider VINCIARELLI PATRIZIO (Director, Chairman & CEO, 10% Owner) sold 20,000 shares (~$6.20M)

VINCIARELLI PATRIZIO, listed as Director, Chairman & CEO, 10% Owner at VICOR CORP, reported an open-market sale of 20,000 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,075 $306.93 $329.9K
S Open-market sale 4,961 $308.01 $1.53M
S Open-market sale 877 $309.10 $271.1K
S Open-market sale 6,448 $310.32 $2.00M
S Open-market sale 2,679 $311.42 $834.3K
S Open-market sale 2,648 $312.29 $826.9K
S Open-market sale 1,312 $313.32 $411.1K
Filing: Form 4 (Insider Transaction) Insider: VINCIARELLI PATRIZIO (Director, Chairman & CEO, 10% Owner) Shares: 20,000 Est. Value: $6.20M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-10-05

VICR insider VINCIARELLI PATRIZIO (Director, Chairman & CEO, 10% Owner) sold 20,000 shares (~$6.32M)

VINCIARELLI PATRIZIO, listed as Director, Chairman & CEO, 10% Owner at VICOR CORP, reported an open-market sale of 20,000 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,300 $307.02 $399.1K
S Open-market sale 2,300 $308.24 $708.9K
S Open-market sale 1,600 $308.79 $494.1K
S Open-market sale 300 $311.23 $93.4K
S Open-market sale 400 $311.81 $124.7K
S Open-market sale 500 $313.75 $156.9K
S Open-market sale 700 $314.71 $220.3K
S Open-market sale 1,300 $315.78 $410.5K
S Open-market sale 2,100 $316.86 $665.4K
S Open-market sale 2,400 $318.05 $763.3K
S Open-market sale 1,700 $319.01 $542.3K
S Open-market sale 1,800 $320.10 $576.2K
S Open-market sale 1,100 $321.57 $353.7K
S Open-market sale 900 $322.40 $290.2K
S Open-market sale 600 $323.37 $194.0K
S Open-market sale 100 $324.98 $32.5K
S Open-market sale 900 $330.00 $297.0K
Filing: Form 4 (Insider Transaction) Insider: VINCIARELLI PATRIZIO (Director, Chairman & CEO, 10% Owner) Shares: 20,000 Est. Value: $6.32M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-03

VICR insider Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) sold 3,073 shares (~$546.1K)

Davies Philip D, listed as Director, Corp. VP-Global Sales & Mktg. at VICOR CORP, reported an open-market sale of 3,073 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 3,073 $41.61 $127.9K
S Open-market sale 1,173 $176.59 $207.1K
S Open-market sale 1,100 $177.63 $195.4K
S Open-market sale 700 $178.66 $125.1K
S Open-market sale 100 $184.85 $18.5K
M Option exercise derivative · Non Qualified Stock Option 3,073 — —
Filing: Form 4 (Insider Transaction) Insider: Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) Shares: 3,073 Est. Value: $546.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-08-24

VICR insider Form 4 filed for equity award, exercise, or tax withholding

ANDERSON SAMUEL J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 331 $60.37 $20.0K
M Option exercise 754 $53.07 $40.0K
M Option exercise 908 $44.07 $40.0K
M Option exercise 200 $100.00 $20.0K
M Option exercise 1,216 $32.89 $40.0K
M Option exercise derivative · Non Qualified Stock Option 331 — —
M Option exercise derivative · Non Qualified Stock Option 754 — —
M Option exercise derivative · Non Qualified Stock Option 908 — —
M Option exercise derivative · Non Qualified Stock Option 200 — —
M Option exercise derivative · Non Qualified Stock Option 1,216 — —
Filing: Form 4 (Insider Transaction) Insider: ANDERSON SAMUEL J (Director) Shares: 3,409
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-19

VICR insider Lavie Zmira (Director) sold 908 shares (~$227.0K)

Lavie Zmira, listed as Director at VICOR CORP, reported an open-market sale of 908 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 908 $44.07 $40.0K
S Open-market sale 908 $250.00 $227.0K
M Option exercise derivative · Non Qualified Stock Option 908 — —
Filing: Form 4 (Insider Transaction) Insider: Lavie Zmira (Director) Shares: 908 Est. Value: $227.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-18

VICR insider ANDERSON SAMUEL J (Director) sold 2,073 shares (~$523.6K)

ANDERSON SAMUEL J, listed as Director at VICOR CORP, reported an open-market sale of 2,073 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 2,073 $252.60 $523.6K
Filing: Form 4 (Insider Transaction) Insider: ANDERSON SAMUEL J (Director) Shares: 2,073 Est. Value: $523.6K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-05

VICR insider Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) sold 3,072 shares (~$650.3K)

Davies Philip D, listed as Director, Corp. VP-Global Sales & Mktg. at VICOR CORP, reported an open-market sale of 3,072 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 3,072 $41.61 $127.8K
S Open-market sale 200 $200.06 $40.0K
S Open-market sale 100 $201.62 $20.2K
S Open-market sale 100 $203.91 $20.4K
S Open-market sale 200 $206.42 $41.3K
S Open-market sale 100 $209.42 $20.9K
S Open-market sale 500 $212.54 $106.3K
S Open-market sale 1,372 $214.02 $293.6K
S Open-market sale 400 $215.03 $86.0K
S Open-market sale 100 $216.04 $21.6K
M Option exercise derivative · Non Qualified Stock Option 3,072 — —
Filing: Form 4 (Insider Transaction) Insider: Davies Philip D (Director, Corp. VP-Global Sales & Mktg.) Shares: 3,072 Est. Value: $650.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-07-28

VICR insider Form 4 filed for equity award, exercise, or tax withholding

EICHTEN ESTIA J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 2,584 $19.35 $50.0K
M Option exercise 731 $68.48 $50.1K
M Option exercise 1,611 $31.05 $50.0K
M Option exercise 1,061 $47.15 $50.0K
M Option exercise derivative · Non Qualified Stock Option 2,584 — —
M Option exercise derivative · Non Qualified Stock Option 731 — —
M Option exercise derivative · Non Qualified Stock Option 1,611 — —
M Option exercise derivative · Non Qualified Stock Option 1,061 — —
Filing: Form 4 (Insider Transaction) Insider: EICHTEN ESTIA J (Director) Shares: 5,987
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-27

VICR insider Lavie Zmira (Director) sold 1,216 shares (~$273.3K)

Lavie Zmira, listed as Director at VICOR CORP, reported an open-market sale of 1,216 VICR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 1,216 $32.89 $40.0K
S Open-market sale 1,216 $224.72 $273.3K
M Option exercise derivative · Non Qualified Stock Option 1,216 — —
Filing: Form 4 (Insider Transaction) Insider: Lavie Zmira (Director) Shares: 1,216 Est. Value: $273.3K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 6 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Vicor Corporation has 6 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Large Proposed Insider Sale 2026-10-02

VICR Form 144 filed for proposed insider sale by PATRIZIO VINCIARELLI (20,000 shares) ~$6.17M

PATRIZIO VINCIARELLI filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: PATRIZIO VINCIARELLI Shares: 20,000 Est. Value: $6.17M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-10-01

VICR Form 144 filed for proposed insider sale by PHILIP D DAVIES (9,217 shares) ~$2.66M

PHILIP D DAVIES filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: PHILIP D DAVIES Shares: 9,217 Est. Value: $2.66M
View on SEC EDGAR → Open Filing Document →
Form 144 Large Proposed Insider Sale 2026-10-01

VICR Form 144 filed for proposed insider sale by PATRIZIO VINCIARELLI (20,000 shares) ~$5.78M

PATRIZIO VINCIARELLI filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: PATRIZIO VINCIARELLI Shares: 20,000 Est. Value: $5.78M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-17

VICR Form 144 filed for proposed insider sale by ZMIRA LAVIE (908 shares) ~$227.0K

ZMIRA LAVIE filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: ZMIRA LAVIE Shares: 908 Est. Value: $227.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-03

VICR Form 144 filed for proposed insider sale by Samuel Anderson (2,073 shares) ~$440.4K

Samuel Anderson filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Samuel Anderson Shares: 2,073 Est. Value: $440.4K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-07-23

VICR Form 144 filed for proposed insider sale by ZMIRA LAVIE (1,216 shares) ~$273.3K

ZMIRA LAVIE filed a Form 144 with the SEC indicating intent to sell VICR (VICOR CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: ZMIRA LAVIE Shares: 1,216 Est. Value: $273.3K
View on SEC EDGAR → Open Filing Document →
Material Events 3 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 3 in this period for Vicor Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-09-10

VICR filed 8-K — material company event

VICOR CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-08-27

VICR filed 8-K — material company event

VICOR CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-07-21

VICR filed 8-K — material company event

VICOR CORP filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Vicor Corporation.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-07-29

VICR filed Quarterly Report (10-Q)

VICOR CORP filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify Vicor Corporation's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on VICR. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — VICR SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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