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VICR · Vicor Corp
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VICR Vicor (VICR) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Electronic components, nec · CIK 0000751978
Quote by TradingView
Form 144 · 5
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
350
13F, latest reported quarter
Conversions, 180 days
70
Codes C/M, not in net · $5.6M priced

What the filings say about VICR

Insiders, 180 days
-$208.4M net sold
16 sellers · 6% of sales under a 10b5-1 plan
Congress, 1 year
No trades
Last one: sale, 2025-03-31
Planned sales (Form 144), 90 days
$15.3M
5 notices

Vicor insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, VICOR CORP insiders sold a net $208.4M of stock across 1,218 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-27.

Insider
Filed
Shares
Value
Since filing
VINCIARELLI PATRIZIO
Chairman & CEO
SELL
2026-10-05 SECtraded 2026-10-02
1,075
$329.9K
-34.9%
Context
  • 739 earlier Form 4 trades (code P or S) here by this insider (739 sales), the last on Oct 1, 2026.
  • The trade is 0.0% of the 8,326,315 shares held after it.
  • 1 other insider sold within 30 days.
  • 350 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman & CEO VINCIARELLI PATRIZIO sold about $329.9K of VICR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 350 funds added in the latest 13F quarter.
VINCIARELLI PATRIZIO
Chairman & CEO
SELL
2026-10-05 SECtraded 2026-10-02
4,961
$1.5M
-34.9%
Context
  • 739 earlier Form 4 trades (code P or S) here by this insider (739 sales), the last on Oct 1, 2026.
  • The trade is 0.1% of the 8,321,354 shares held after it.
  • 1 other insider sold within 30 days.
  • 350 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman & CEO VINCIARELLI PATRIZIO sold about $1.5M of VICR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 350 funds added in the latest 13F quarter.
VINCIARELLI PATRIZIO
Chairman & CEO
SELL
2026-10-05 SECtraded 2026-10-02
877
$271.1K
-34.9%
Context
  • 739 earlier Form 4 trades (code P or S) here by this insider (739 sales), the last on Oct 1, 2026.
  • The trade is 0.0% of the 8,320,477 shares held after it.
  • 1 other insider sold within 30 days.
  • 350 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman & CEO VINCIARELLI PATRIZIO sold about $271.1K of VICR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 350 funds added in the latest 13F quarter.
VINCIARELLI PATRIZIO
Chairman & CEO
SELL
2026-10-05 SECtraded 2026-10-02
6,448
$2.0M
-34.9%
Context
  • 739 earlier Form 4 trades (code P or S) here by this insider (739 sales), the last on Oct 1, 2026.
  • The trade is 0.1% of the 8,314,029 shares held after it.
  • 1 other insider sold within 30 days.
  • 350 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman & CEO VINCIARELLI PATRIZIO sold about $2.0M of VICR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 350 funds added in the latest 13F quarter.
VINCIARELLI PATRIZIO
Chairman & CEO
SELL
2026-10-05 SECtraded 2026-10-02
2,679
$834.3K
-34.9%
Context
  • 739 earlier Form 4 trades (code P or S) here by this insider (739 sales), the last on Oct 1, 2026.
  • The trade is 0.0% of the 8,311,350 shares held after it.
  • 1 other insider sold within 30 days.
  • 350 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman & CEO VINCIARELLI PATRIZIO sold about $834.3K of VICR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 350 funds added in the latest 13F quarter.
1,218 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 1,213 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$208.4M over 180 days
-$15.4M over 90 days · -$173.8M of it by a 10%+ holder
below 93% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
350 funds bought in last quarter
more than 79% of Semiconductors & Electronics
Revenue
+13.5% year over year
more than 55% of Semiconductors & Electronics
Margin
29.1% net margin
more than 94% of Semiconductors & Electronics
Buybacks
$35.2M repurchased, FY to 2025-12-31
more than 51% of Semiconductors & Electronics
Short interest
9.4% of the float short (float per yahoo 2026-10-26) · 2.2 days to cover · settled 2026-09-30
What changed in the last 30 days
Oct 5Chairman & CEO VINCIARELLI PATRIZIO sold $12.5M under a 10b5-1 plan (24 trades, Oct 1 to Oct 2)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 5Corp. VP-Global Sales & Mktg. Davies Philip D sold $971.9K under a 10b5-1 plan (Oct 1)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 2Director PATRIZIO VINCIARELLI filed to sell $6.2M by Oct 2 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Oct 1Director PATRIZIO VINCIARELLI filed to sell $5.8M by Oct 1 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Oct 1Director PHILIP D DAVIES filed to sell $2.7M by Oct 1 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch VICR

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The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+127.1%12M
-3%+112%+228%+343%2025-102025-122026-022026-042026-062026-082026-10 2026-06-26 · VINCIARELLI PATRIZIO sold $4.7M2026-03-25 · VINCIARELLI PATRIZIO sold $3.5M2026-03-11 · VINCIARELLI PATRIZIO sold $3.3M2026-05-11 · McNamara Michael sold $3.1M2026-03-12 · VINCIARELLI PATRIZIO sold $2.8M2026-04-24 · Tuozzolo Claudio sold $2.8M2026-03-16 · VINCIARELLI PATRIZIO sold $2.8M2026-04-16 · VINCIARELLI PATRIZIO sold $2.6M2026-03-16 · VINCIARELLI PATRIZIO sold $2.4M2026-03-20 · VINCIARELLI PATRIZIO sold $2.3M2026-05-11 · McNamara Michael sold $2.2M2026-04-15 · VINCIARELLI PATRIZIO sold $2.2M2026-04-15 · VINCIARELLI PATRIZIO sold $2.2M2026-03-19 · VINCIARELLI PATRIZIO sold $2.1M2026-03-04 · VINCIARELLI PATRIZIO sold $2.1M2026-03-11 · VINCIARELLI PATRIZIO sold $2.0M2026-10-02 · VINCIARELLI PATRIZIO sold $2.0M2026-04-15 · VINCIARELLI PATRIZIO sold $2.0M2026-04-16 · VINCIARELLI PATRIZIO sold $2.0M2026-04-16 · VINCIARELLI PATRIZIO sold $2.0M2026-04-15 · VINCIARELLI PATRIZIO sold $1.9M2026-03-04 · VINCIARELLI PATRIZIO sold $1.9M2026-04-14 · VINCIARELLI PATRIZIO sold $1.9M2026-04-09 · VINCIARELLI PATRIZIO sold $1.9M2026-03-17 · VINCIARELLI PATRIZIO sold $1.9M2026-04-09 · VINCIARELLI PATRIZIO sold $1.9M2026-03-25 · VINCIARELLI PATRIZIO sold $1.9M2026-04-14 · VINCIARELLI PATRIZIO sold $1.8M2026-03-17 · VINCIARELLI PATRIZIO sold $1.8M2026-03-05 · VINCIARELLI PATRIZIO sold $1.8M2026-03-24 · VINCIARELLI PATRIZIO sold $1.8M2026-03-11 · VINCIARELLI PATRIZIO sold $1.8M2025-12-26 · VINCIARELLI PATRIZIO sold $1.7M2026-03-12 · VINCIARELLI PATRIZIO sold $1.7M2026-03-10 · VINCIARELLI PATRIZIO sold $1.7M2026-03-16 · VINCIARELLI PATRIZIO sold $1.6M2026-04-23 · Doyle Alvaro sold $1.6M2026-03-06 · VINCIARELLI PATRIZIO sold $1.5M2026-03-25 · VINCIARELLI PATRIZIO sold $1.5M2026-10-02 · VINCIARELLI PATRIZIO sold $1.5M2025-12-30 · VINCIARELLI PATRIZIO sold $1.5M2026-03-10 · VINCIARELLI PATRIZIO sold $1.5M2026-10-02 · PATRIZIO VINCIARELLI filed to sell $6.2M2026-10-01 · PHILIP D DAVIES filed to sell $2.7M2026-10-01 · PATRIZIO VINCIARELLI filed to sell $5.8M2026-08-17 · ZMIRA LAVIE filed to sell $227.0K2026-08-03 · Samuel Anderson filed to sell $440.4K2026-07-23 · ZMIRA LAVIE filed to sell $273.3K2026-07-06 · PATRIZIO VINCIARELLI filed to sell $198.1K2026-07-02 · PATRIZIO VINCIARELLI filed to sell $7.0M2026-07-01 · PHILIP D DAVIES filed to sell $3.5M2026-07-01 · PATRIZIO VINCIARELLI filed to sell $7.6M2026-06-30 · PATRIZIO VINCIARELLI filed to sell $7.3M2026-06-29 · PATRIZIO VINCIARELLI filed to sell $6.5M2026-06-26 · PATRIZIO VINCIARELLI filed to sell $6.6M2026-06-25 · PATRIZIO VINCIARELLI filed to sell $6.4M2026-06-24 · PATRIZIO VINCIARELLI filed to sell $6.7M2026-06-23 · PATRIZIO VINCIARELLI filed to sell $7.3M2026-06-22 · JAMES SCHMIDT filed to sell $1.4M2026-06-22 · PATRIZIO VINCIARELLI filed to sell $6.6M2026-06-18 · PATRIZIO VINCIARELLI filed to sell $6.5M
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns VICR: institutional holders (13F)

13F holdings, latest reported quarter
BlackRock, Inc.
2,460,929 sh
$934.6M
JPMORGAN CHASE & CO
2,370,220 sh
$869.8M
VANGUARD PORTFOLIO MANAGEMENT LLC
1,280,146 sh
$486.2M
VANGUARD CAPITAL MANAGEMENT LLC
1,120,538 sh
$425.6M
STATE STREET CORP
726,021 sh
$275.7M

Congress trades in VICR

STOCK Act disclosures, US House only, filed up to 45 days after the trade
Jefferson Shreve
Sold 2025-03-31 · disclosed 11 days later
$15,001 - $50,000
Jefferson Shreve
Bought 2025-03-05 · disclosed 37 days later
$15,001 - $50,000
All stocks members of Congress are buying · Every member's trades

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

VICR planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
PATRIZIO VINCIARELLI
Filed 2026-10-02
$6.2M
PHILIP D DAVIES
Filed 2026-10-01
$2.7M
PATRIZIO VINCIARELLI
Filed 2026-10-01
$5.8M
ZMIRA LAVIE
Filed 2026-08-17
$227.0K
Samuel Anderson
Filed 2026-08-03
$440.4K

VICR mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Needham Aggressive Growth Fund
$181.2M position · as of 2026-06-30
6.9%
VistaShares Electrification Supercycle ETF
$3.9M position · as of 2026-05-31
5.7%
BRUCE FUND
$18.2M position · as of 2026-06-30
4.9%
TrueShares Technology, AI & Deep Learning ETF
$2.0M position · as of 2026-06-30
4.7%
First Trust NASDAQ Clean Edge Green Energy Index Fund
$31.9M position · as of 2026-06-30
3.8%
VistaShares Artificial Intelligence Supercycle ETF
$24.9M position · as of 2026-05-31
3.6%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Executive pay vs shareholder return
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$702.2K
$2.4M
$1.0M
+19%
+42%
2024
$719.1K
$785.2K
$975.2K
-48%
+34%
2023
$821.2K
$818.5K
$873.1K
-51%
+23%
2022
$657.1K
-$10.0M
$803.5K
-42%
+6%
2021
$464.2K
$7.5M
$918.7K
+38%
+27%
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $208.4M sold by insiders over 180 days, 350 funds added last quarter, $15.3M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
NVDACRDOMPWRALABPIMTSIMUCRCTAIPAVGOAMDADI

VICR financials

Revenue growth
+13.5%
XBRL, annual
Net margin
29.1%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
n/a
the filed year and its quarters do not reconcile, so the trailing figure is withheld
Net margin, TTM
n/a
the filed year and its quarters do not reconcile, so the trailing figure is withheld
Free cash flow, TTM
$87.3M
operating cash flow minus capex, 2025-04-01 to 2026-03-31
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
+20.5%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on assets
+18.6%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on invested capital
n/a
effective tax rate -22%, not meaningful
Return on capital employed
+14.6%
operating income (EBIT proxy) over average of 2025-03-31 and 2026-03-31 minus current liabilities
P/E, trailing
64.92x
close 2026-10-26 over four quarters of diluted EPS, 2025-04-01 to 2026-03-31
Enterprise value
n/a
no share count filed
FCF yield
n/a
no share count filed
PEG, trailing
0.14x
P/E over trailing EPS growth of 477%: four quarters to 2026-03-31 against the four to 2025-03-31
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$452.7M$359.1M$405.1M$399.1M
Gross profit$259.4M$184.0M$204.9M$180.6M
Operating income$81.8M-$1.3M$51.4M$27.2M
Net income$118.6M$6.1M$53.6M$25.4M
EPS (diluted)2.610.141.190.57
Operating cash flow$139.5M$50.8M$74.5M$22.9M
Cash$402.8M$277.3M$242.2M$190.6M
Buybacks$35.2M$497.0K$0$0
SEC XBRL, fiscal years, as known on 2026-10-27

VICR Stock Sonar score 5/7 axes

Find similar shapesCompare

VICR ranks highest on profitability (86th percentile) and institutional and government (79th), and lowest on insider conviction (3rd), among Semiconductors & Electronics peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
86
Inputs
  • Return on equity+20.5% · 82 pct, sector of 154
  • Return on assets+18.6% · 92 pct, sector of 171
  • Return on invested capitaleffective tax rate -22%, not meaningful
  • Return on capital employed+14.6% · 83 pct, sector of 155
Growth
55
Inputs
  • Revenue growth, YoY+13.5% · 55 pct, sector of 194
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
3
Inputs
  • Net Form 4 buying (codes P and S), 180d-$194.3M · 7 pct, sector of 147
  • Insider buyers, 180d0 · 0 pct, sector of 151
Institutional and government
79
Inputs
  • Funds adding, latest quarter350 · 79 pct, sector of 184
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
42
Inputs
  • Short interest, % of float+9.4% · 35 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5y2.45 per $1B · 1 pct, universe of 1,048
  • New text in Risk Factors, latest 10-K+3.7% · 91 pct, sector of 152
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

VICR filings, in plain words

Are Vicor insiders buying or selling VICR?

In the 180 days to 2026-10-27, Vicor insiders were net sellers, a net $208.4M across purchases and sales reported on Form 4, by 16 sellers.

Have members of Congress traded VICR?

Yes, but not in the year to 2026-10-27; the latest on record is a sale by Jefferson Shreve dated 2025-03-31.

Are there planned insider sales of VICR?

Yes. 5 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-27, covering $15.3M of stock; the latest, by PATRIZIO VINCIARELLI, was filed 2026-10-02.

Read the full summary

In the 180 days to 2026-10-27, Vicor insiders were net sellers of VICR, a net $208.4M across purchases and sales reported on Form 4 by 16 sellers. Most of that figure, $173.8M, came from a holder of 10% or more rather than an officer or director. 6% of the 657 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Members of Congress have disclosed trades in VICR, none in the last year; the latest on record is a sale by Jefferson Shreve dated 2025-03-31. Insiders filed 5 Form 144 notices of intent to sell in the 90 days to 2026-10-27, covering $15.3M of stock. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.

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