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Insider Cluster (4 insiders) ·Filed May 28, 2026

VICR

VICOR CORP
NEUTRAL
Impact 2/10
Horizondays Processed5mo ago
Insider cluster: 4 insiders, $1.3M total
Actionable Insight • Neutral

This is a routine vesting-and-sell cluster at a negligible fraction of market cap. No directional read-through for Vicor shares. Monitor the next 8-K or earnings release for any fundamental business updates, but this insider activity alone warrants no action.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
VICR ▼ -43.26% at T+60d
NEUTRAL call -43.26% · α vs SPY -44.44% · entry $334.84 → $189.99
Entry = T+0 close
May 28, 2026
via day close
T+1d
-1.79%
call -1.79% · α -2.06%
$328.85
settled 5mo ago
T+5d
-1.30%
call -1.30% · α -1.01%
$330.48
settled 5mo ago
T+20d
+9.54%
call +9.54% · α +11.34%
$366.79
settled 4mo ago
T+60d
-43.26%
call -43.26% · α -44.44%
$189.99
settled 2mo ago

Price Chart

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Executive Summary

Four Vicor insiders (a Corp. VP, two VP-level executives, and a director) sold shares in a cluster totaling $1.31M in open-market sales. All sales were coupled with derivative exercises at nominal or zero cost, indicating a routine vesting-and-sell pattern for tax/compensation purposes rather than a coordinated negative signal. At ~0.008% of the $15.8B market cap, the dollar value is trivial and carries no material pricing information.

Key Financial Metrics

Direction
selling
Total Value
$1.3M
Insiders
4

Key Facts

  • Total open-market insider selling: $1.31M over 4 insiders in a 7-day window
  • All sales were paired with same-day derivative exercises (options vesting), consistent with cashless exercise or tax-withholding patterns
  • Largest seller: Corp. VP Claudio Tuozzolo ($985K); next: VP Marketing Robert Gendron ($190K), VP HR Nancy Grava ($115K), Director Andrew D'Amico ($24K)
  • Total sales equal ~0.008% of Vicor's $15.8B market cap — well below the 0.1% triviality threshold
  • No open-market purchases occurred in the cluster

Financial Impact

Total insider sales of $1.31M represent ~0.008% of market cap; negligible economic signal

insider holdingsdilution

Risk Factors

  • None from this filing — insignificant relative to market cap and tied to plan/vesting mechanics

Market Snapshot

Exchange
Nasdaq
Sector
Electronic Components, NEC

Investment Themes

Software & IT

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-vicr-1780001875588
96 reports for VICR
Performance horizon
71% Hit rate @ T+1 17 of 24 directional calls Went positive at some point 21 of 24 best @ T+60▲ +24.47%Jul 21, 2026
Filters
Rows
Reports for VICR — sortable, filterable
TypeNow
Oct 23, 2026
4d ago
Institutional Cluster
BULLISH ★ 4/10
$176.04 $194.77▲ +10.64%▲ +9.93%$212.00 (+20.43%)
Oct 20, 2026
7d ago
8-K
BULLISH ★ 7/10
$204.14 $213.42▲ +4.55%▲ +4.02%$212.00 (+3.85%)
Oct 5, 2026
22d ago
Insider Cluster
BEARISH ★ 7/10
$305.61 $299.29▲ +2.07%▲ +2.62%$212.00 (+30.63%)
Sep 21, 2026
5w ago
Press Release
BULLISH ★ 6/10
$268.34 $283.16▲ +5.52%▲ +6.24%$212.00 (−21.00%)
Sep 11, 2026
6w ago
Press Release
NEUTRAL ★ 4/10
$197.91 $184.73▼ −6.66%▼ −6.21%$212.00 (+7.12%)
Aug 27, 2026
8w ago
8-K
NEUTRAL ★ 3/10
$203.64 $187.75▼ −7.80%▼ −7.58%$212.00 (+4.11%)
Aug 19, 2026
9w ago
Insider Cluster
NEUTRAL ★ 2/10
$217.35 $207.64▼ −4.47%▼ −3.63%$212.00 (−2.46%)
Aug 19, 2026
9w ago
Insider Cluster
NEUTRAL ★ 2/10
$217.35 $207.64▼ −4.47%▼ −3.63%$212.00 (−2.46%)
Jul 21, 2026
14w ago
8-K
BULLISH ★ 6/10
$214.70 $217.35▲ +1.23%▲ +1.35%$212.00 (−1.26%)
Jul 21, 2026
14w ago
Press Release
BULLISH ★ 7/10
$214.70 $217.35▲ +1.23%▲ +1.35%$212.00 (−1.26%)
Showing 10 of 96

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published May 28, 2026