Ticker · CUSIP 925815102

VICR

VICOR CORP

Technology·Electronic Components

···Share

Holders (tracked)

Combined shares

747,288

Combined value

$81.90M

Last close

$218.05

Quarter

2025Q4

Price is +98.9% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$218.05+171.29 (+366.32%)H $218.05 · L $39.41 · Avg Vol 485K

Tracked holders · last 8 quarters

+3 vs previous quarter over the last 8.

SEC event timeline

18 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+54,024 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) trimmed2026-02-17
−160,432 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+748 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−58 shares · 2025Q4
Position
D.E. Shaw & Co. exited2026-02-17
−18,128 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−39,603 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+4,726 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+413,038 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+12,840 shares · 2025Q4
Position
Renaissance Technologies opened position2026-02-12
+10,200 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−177,086 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−5,542 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−10,282 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+2,682 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+1,056 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) opened position2025-11-13
+6,254 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−22,084 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+147,939 shares · 2024Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for VICR →

Follow-the-investor returns

If you'd copied each holder of VICR…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
D.E. Shaw & Co.	2018Q3	$46.27	+371.2%	$2.7M
Izzy Englander (Millennium Mgmt)	2016Q1	$46.97	+364.2%	$695K
AQR Capital Management	2018Q2	$47.23	+361.6%	$17.8M
Two Sigma Investments	2016Q1	$50.04	+335.7%	$927K
Renaissance Technologies	2016Q1	$55.47	+293.1%	$2.2M
Paul Tudor Jones (Tudor Investment)	2018Q4	$72.33	+201.5%	$11.8M
Ray Dalio (Bridgewater Associates)	2025Q3	$89.99	+142.3%	$4.2M
Ken Griffin (Citadel Advisors)	2019Q1	$104.07	+109.5%	$12.0M
Ken Griffin (Citadel Advisors)	2019Q1	$104.07	+109.5%	$12.0M
Ken Griffin (Citadel Advisors)	2019Q1	$104.07	+109.5%	$12.0M
Steve Cohen (Point72)	2022Q2	$105.33	+107.0%	$1.0M
T. Rowe Price	2016Q1	$105.53	+106.6%	$95.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Paul Tudor Jones (Tudor Investment)
+54,024
$5.9M
Renaissance Technologies
+10,200
$1.1M
Steve Cohen (Point72)
+4,726
$518K

Added to3

Ray Dalio (Bridgewater Associates)
+12,840
$1.4M
AQR Capital Management
+748
$82K
T. Rowe Price
+413,038
$45K

Trimmed3

Ken Griffin (Citadel Advisors)
−160,432
$17.6M
Izzy Englander (Millennium Mgmt)
−39,603
$4.3M
Two Sigma Investments
−58
$6K

Exited1

D.E. Shaw & Co.
−18,128
$901K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	14	3,071,229	$11.65B	—
2022Q2	12	3,323,632	$10.03B	-2
2022Q3	9	3,454,737	$204.3M	-3
2022Q4	15	3,605,358	$193.7M	+6
2023Q1	14	5,072,888	$238.1M	-1
2023Q2	14	5,025,317	$271.4M	—
2023Q3	14	3,930,135	$231.4M	—
2023Q4	12	4,692,424	$210.9M	-2
2024Q1	11	4,306,926	$164.7M	-1
2024Q2	11	4,412,663	$146.3M	—
2024Q3	10	790,667	$33.3M	-1
2024Q4	10	406,680	$19.7M	—
2025Q1	9	549,287	$25.7M	-1
2025Q2	9	627,525	$28.5M	—
2025Q3	9	421,333	$20.9M	—
2025Q4	12	747,288	$81.9M	+3

Who owns VICR

12 super-investors · 2025Q4

Tracked stake

747.3K

Combined value

$82M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added3Trim5Sold1

#	Manager	Shares	Value	% of book	Last action
1	T. Rowe Price	439.8K	$48M	0.0%	Added+413.0K
2	AQR Capital Management	81.6K	$9M	0.0%	Added+748
3	Ken Griffin Citadel Advisors	54.9K	$6M	0.0%	Trim−160.4K
4	Paul Tudor Jones Tudor Investment	54.0K	$6M	0.0%	New+54.0K
5	Ken Griffin Citadel Advisors	38.5K	$4M	0.0%	Trim−160.4K
6	Ken Griffin Citadel Advisors	24.6K	$3M	0.0%	Trim−160.4K
7	Ray Dalio Bridgewater Associates	19.1K	$2M	0.0%	Added+12.8K
8	D.E. Shaw & Co.	12.4K	$1M	0.0%	Sold−18.1K
9	Renaissance Technologies	10.2K	$1M	0.0%	New+10.2K
10	Steve Cohen Point72	4.7K	$518K	0.0%	New+4.7K
11	Two Sigma Investments	4.3K	$466K	0.0%	Trim−58
12	Izzy Englander Millennium Mgmt	3.2K	$350K	0.0%	Trim−39.6K

Recent moves

20 transactions

ADDAQR Capital Management
+748 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−160,432 · 2025Q4
NEWSteve Cohen (Point72)
+4,726 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+54,024 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−39,603 · 2025Q4
SOLDD.E. Shaw & Co.
−18,128 · 2025Q4
ADDT. Rowe Price
+413,038 · 2025Q4
TRIMTwo Sigma Investments
−58 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+12,840 · 2025Q4
NEWRenaissance Technologies
+10,200 · 2025Q4
ADDAQR Capital Management
+2,682 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−177,086 · 2025Q3
TRIMD.E. Shaw & Co.
−10,282 · 2025Q3
TRIMTwo Sigma Investments
−5,542 · 2025Q3
ADDT. Rowe Price
+1,056 · 2025Q3
NEWRay Dalio (Bridgewater Associates)
+6,254 · 2025Q3
SOLDNorges Bank (Norway SWF)
−22,084 · 2025Q3
ADDNorges Bank (Norway SWF)
+147,939 · 2024Q3
ADDD.E. Shaw & Co.
+11,473 · 2025Q2
ADDTwo Sigma Investments
+1,289 · 2025Q2

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