JPMorgan Chase & Co
· Reduced
−$316M
Change
−1.9M
Date
Q1 2026
VI
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
JPMorgan Chase & Co
· Reduced
−$316M
Change
−1.9M
Date
Q1 2026
|
JPMorgan Chase & Co | Reduced· Q1 2026 | −$316M | −1.9M | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$114M
Change
−688K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$114M | −688K | – | Q1 2026 | |||||
|
CIBC Bancorp USA Inc.
· Reduced
−$42M
Change
−252K
Date
Q1 2026
|
CIBC Bancorp USA Inc. | Reduced· Q1 2026 | −$42M | −252K | – | Q1 2026 | |||||
|
Ashford Capital Management Inc
· Reduced
−$40M
Change
−240K
Date
Q1 2026
|
Ashford Capital Management Inc | Reduced· Q1 2026 | −$40M | −240K | – | Q1 2026 | |||||
|
Vanguard
· Reduced
−$24M
Change
−144K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | −$24M | −144K | – | Q1 2026 | |||||
|
Nuveen, LLC
· Reduced
−$20M
Change
−123K
Date
Q1 2026
|
Nuveen, LLC | Reduced· Q1 2026 | −$20M | −123K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Reduced
−$17M
Change
−102K
Date
Q1 2026
|
Marshall Wace, LLP | Reduced· Q1 2026 | −$17M | −102K | – | Q1 2026 | |||||
|
Pinnacle Associates Ltd
· Reduced
−$16M
Change
−94K
Date
Q1 2026
|
Pinnacle Associates Ltd | Reduced· Q1 2026 | −$16M | −94K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
−$10M
Change
−63K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | −$10M | −63K | – | Q1 2026 | |||||
|
Public Sector Pension Investment Board
· Reduced
−$9.9M
Change
−60K
Date
Q1 2026
|
Public Sector Pension Investment Board | Reduced· Q1 2026 | −$9.9M | −60K | – | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Reduced
−$9.9M
Change
−60K
Date
Q1 2026
|
Janus Henderson Group PLC | Reduced· Q1 2026 | −$9.9M | −60K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
−$8.5M
Change
−51K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | −$8.5M | −51K | – | Q1 2026 | |||||
|
Alight Capital Management LP
· Reduced
−$8.3M
Change
−50K
Date
Q1 2026
|
Alight Capital Management LP | Reduced· Q1 2026 | −$8.3M | −50K | – | Q1 2026 | |||||
|
Needham Investment Management LLC
· Reduced
−$7.9M
Change
−48K
Date
Q1 2026
|
Needham Investment Management LLC | Reduced· Q1 2026 | −$7.9M | −48K | – | Q1 2026 | |||||
|
FMR LLC
· Reduced
−$7.6M
Change
−46K
Δ Own
−21.8%
Date
Q1 2026
|
FMR LLC | Reduced· Q1 2026 | −$7.6M | −46K | −21.8% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Eichten Estia J.
· Director
8 operations
0
|
Eichten Estia J. | Director | 8 operations | $19.35–$68.48 | 0 | – | 0 | – | Jul 24, 2026 | Jul 28, 2026 | |||||||||
|
Lavie Zmira
· Director
Sell
−$273K
|
Lavie Zmira | Director | Sell | $224.72 | −1K | −$273K | 0 | −100.0% | Jul 23, 2026 | Jul 27, 2026 | |||||||||
|
Lavie Zmira
· Director
2 operations
0
|
Lavie Zmira | Director | 2 operations | $32.89 | 0 | – | 4K | – | Jul 23, 2026 | Jul 27, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
2 operations
−$212K
|
Vinciarelli Patrizio | Director | 2 operations | $302.04–$303.31 | −700 | −$212K | 8.3M | 0.0% | Jul 6, 2026 | Jul 7, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
24 operations
−$6.4M
|
Vinciarelli Patrizio | Director | 24 operations | $309.15–$350.54 | −20K | −$6.4M | 8.3M | −0.2% | Jul 2, 2026 | Jul 6, 2026 | |||||||||
|
Davies Philip D.
· Director
11 operations
−$1.1M
|
Davies Philip D. | Director | 11 operations | $348.84–$366.68 | −3K | −$1.1M | 2K | −61.5% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Davies Philip D.
· Director
4 operations
0
|
Davies Philip D. | Director | 4 operations | $30.98–$41.61 | 0 | – | 0 | – | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
19 operations
−$7.1M
|
Vinciarelli Patrizio | Director | 19 operations | $345.02–$366.69 | −20K | −$7.1M | 8.4M | −0.2% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
17 operations
−$7.5M
|
Vinciarelli Patrizio | Director | 17 operations | $354.45–$382.27 | −20K | −$7.5M | 8.4M | −0.2% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
33 operations
−$7.1M
Price
$322.10–$369.33
Qty
−20K
Owned
8.4M
ΔOwn
−0.2%
Trade date
Jun 29, 2026
Filed date
Jun 30, 2026
|
Vinciarelli Patrizio | Director | 33 operations | $322.10–$369.33 | −20K | −$7.1M | 8.4M | −0.2% | Jun 29, 2026 | Jun 30, 2026 | |||||||||
|
D'Amico Andrew
· Director
Sell
−$106K
|
D'Amico Andrew | Director | Sell | $319.53 | −331 | −$106K | 0 | −100.0% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
D'Amico Andrew
· Director
2 operations
0
|
D'Amico Andrew | Director | 2 operations | $60.37 | 0 | – | 331 | – | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Vinciarelli Patrizio
· Director
17 operations
−$6.5M
Price
$303.70–$326.93
Qty
−20K
Owned
8.4M
ΔOwn
−0.2%
Trade date
Jun 26, 2026
Filed date
Jun 29, 2026
|
Vinciarelli Patrizio | Director | 17 operations | $303.70–$326.93 | −20K | −$6.5M | 8.4M | −0.2% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Schmidt James F.
· Director
9 operations
−$332K
|
Schmidt James F. | Director | 9 operations | $327.19–$342.51 | −1K | −$332K | 0 | −100.0% | Jun 25, 2026 | Jun 29, 2026 | |||||||||
|
Schmidt James F.
· Director
2 operations
0
|
Schmidt James F. | Director | 2 operations | $100.00 | 0 | – | 0 | – | Jun 25, 2026 | Jun 29, 2026 | |||||||||
N
M
A
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G
A
353 reporting institutions disclosed VICR position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.