Quentin A. Fendelet - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Quentin A. Fendelet has filed 3 SEC Form 4 filings across 1 company in the last 90 days - selling. Lifetime open-market sales: $5.19M.
Profile
Quentin A. Fendelet is Corp. VP - CAO at VICOR CORP (VICR). Fendelet has reported 6 insider filings with the SEC since 2025. The most recent filing was in May 2026.
| Role | Corp. VP - CAO |
|---|---|
| Notability | 28/100 |
Board memberships
- VICOR CORP
Reported roles
- Corp. VP - CAO
Trading Pattern
InsiderAlpha's records for Quentin A. Fendelet go back to 2025: 6 primary Form 4 filings, an average of 3.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Quentin A. Fendelet has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Corp. VP - CAO at VICOR CORP (VICR) - 6 filings, 2025 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 599 | $301.34 | $181K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 1.9K | $300.13 | $579K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 200 | $299.44 | $60K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 533 | $297.54 | $159K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 100 | $295.00 | $30K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 497 | $293.63 | $146K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 238 | $292.66 | $70K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 262 | $291.44 | $76K |
| 2026-05-12 | VICR | VICOR CORP | S - Open-market sale | 700 | $290.01 | $203K |
| 2026-05-12 | VICR | VICOR CORP | M - Option exercise | 96 | $41.61 | $4K |
| 2026-05-12 | VICR | VICOR CORP | M - Option exercise | 5.0K | $33.96 | $169K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 2.5K | $280.39 | $709K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 500 | $276.26 | $138K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 847 | $275.26 | $233K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 283 | $274.02 | $78K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 200 | $272.22 | $54K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 200 | $271.11 | $54K |
| 2026-05-08 | VICR | VICOR CORP | S - Open-market sale | 500 | $270.18 | $135K |
| 2026-05-08 | VICR | VICOR CORP | M - Option exercise | 457 | $60.61 | $28K |
| 2026-05-08 | VICR | VICOR CORP | M - Option exercise | 2.2K | $41.61 | $90K |
Companies - Last 90 Days
- VICOR CORP (VICR) - 3 filings, last 2026-05-12
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Quentin A. Fendelet has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Patrizio Vinciarelli - $271.99M of VICR open-market activity in the last 12 months
- Claudio Tuozzolo - $13.72M of VICR open-market activity in the last 12 months
- James F. Schmidt - $8.43M of VICR open-market activity in the last 12 months
- Estia J. Eichten - $7.35M of VICR open-market activity in the last 12 months
- Michael McNamara - $7.12M of VICR open-market activity in the last 12 months
- Philip D. Davies - $5.89M of VICR open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- R01 Fund LP
- RA CAPITAL MANAGEMENT, L.P.
- Bradley Louis Radoff
- RBC Global Asset Management (U.S.) Inc.
- Redmile Group, LLC
- Andrew Phillips Reed
- Daniel Reis-Faria
- Saul B. Rosenthal
Frequently Asked Questions
Who is Quentin A. Fendelet?
Quentin A. Fendelet is Corp. VP - CAO at VICOR CORP (VICR). Fendelet has reported 6 insider filings with the SEC since 2025. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Quentin A. Fendelet submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has Quentin A. Fendelet been buying or selling stock?
Recorded transactions: 0 open-market purchases and 24 open-market sales ($5.19M) across all tracked filings.
Where can I see all of Quentin A. Fendelet's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Quentin A. Fendelet profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.