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 | |||||
|
T. Rowe Price Associates
· Added
+$239M
Change
+1.4M
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | +$239M | +1.4M | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$114M
Change
−688K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$114M | −688K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· New
+$54M
Change
+328K
Date
Q1 2026
|
Jane Street Group, LLC | New· Q1 2026 | +$54M | +328K | – | Q1 2026 | |||||
|
CIBC Bancorp USA Inc.
· Reduced
−$42M
Change
−252K
Date
Q1 2026
|
CIBC Bancorp USA Inc. | Reduced· Q1 2026 | −$42M | −252K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
+$40M
Change
+243K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | +$40M | +243K | – | Q1 2026 | |||||
|
Ashford Capital Management Inc
· Reduced
−$40M
Change
−240K
Date
Q1 2026
|
Ashford Capital Management Inc | Reduced· Q1 2026 | −$40M | −240K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
+$36M
Change
+219K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | +$36M | +219K | – | Q1 2026 | |||||
|
Driehaus Capital Management LLC
· New
+$31M
Change
+189K
Date
Q1 2026
|
Driehaus Capital Management LLC | New· Q1 2026 | +$31M | +189K | – | Q1 2026 | |||||
|
Manufacturers Life Insurance Company, the
· Added
+$28M
Change
+171K
Date
Q1 2026
|
Manufacturers Life Insurance Company, the | Added· Q1 2026 | +$28M | +171K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Added
+$27M
Change
+162K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Added· Q1 2026 | +$27M | +162K | – | 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 | |||||
|
Silvercrest Asset Management Group LLC
· New
+$19M
Change
+115K
Date
Q1 2026
|
Silvercrest Asset Management Group LLC | New· Q1 2026 | +$19M | +115K | – | Q1 2026 | |||||
|
Gf Fund Management Co. Ltd.
· New
+$19M
Change
+115K
Date
Q1 2026
|
Gf Fund Management Co. Ltd. | New· Q1 2026 | +$19M | +115K | – | 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
M
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.