Vicor Corporation
DE ˙ DB ˙ US9258151029
284,20 € ↑14,30 (5,30%)
2026-06-05
DEL PRIS
SecurityDE:VCV / Vicor Corporation
InstitutionNorthern Trust Corp
Latest Disclosed Ownership272,711 shares
Latest Disclosed Value $ 43,906,471
Northern Trust Corp reports 21.75% increase in ownership of VCV / Vicor Corporation

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 272,711 shares of Vicor Corporation (DE:VCV) valued at $33,925,248 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 224,000 shares of Vicor Corporation. This represents a change in shares of 21.75% during the quarter. The current value of the position is $77,504,466 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F VICOR COM 925815102 272,711 48,711 21.75 43,906 78.84 0.0012
2026-02-17 2025-12-31 13F VICOR COM 925815102 224,000 -13,640 -5.74 24,550 107.79 0.0006
2025-11-14 2025-09-30 13F VICOR COM 925815102 237,640 -3,292 -1.37 11,815 8.12 0.0015
2025-08-13 2025-06-30 13F VICOR COM 925815102 240,932 -3,231 -1.32 10,929 -4.32 0.0015
2025-05-13 2025-03-31 13F VICOR COM 925815102 244,163 -5,554 -2.22 11,422 -5.35 0.0017
2025-02-14 2024-12-31 13F VICOR COM 925815102 249,717 20,321 8.86 12,066 24.95 0.0017
2024-11-13 2024-09-30 13F VICOR COM 925815102 229,396 5,284 2.36 9,658 29.96 0.0016
2024-08-14 2024-06-30 13F VICOR COM 925815102 224,112 -9,534 -4.08 7,432 -16.82 0.0013
2024-05-14 2024-03-31 13F VICOR COM 925815102 233,646 -6,676 -2.78 8,935 -17.28 0.0015
2024-02-13 2023-12-31 13F VICOR COM 925815102 240,322 -36,328 -13.13 10,800 -33.71 0.0020
2023-11-13 2023-09-30 13F VICOR COM 925815102 276,650 -4,253 -1.51 16,292 7.40 0.0032
2023-08-11 2023-06-30 13F VICOR COM 925815102 280,903 -2,058 -0.73 15,169 14.20 0.0029
2023-05-15 2023-03-31 13F VICOR COM 925815102 282,961 224 0.08 13,282 -12.60 0.0026
2023-02-13 2022-12-31 13F VICOR COM 925815102 282,737 509 0.18 15,197 -8.95 0.0032
2022-11-14 2022-09-30 13F VICOR COM 925815102 282,228 -1,824 -0.64 16,691 7.37 0.0038
2022-08-12 2022-06-30 13F VICOR COM 925815102 284,052 -2,714 -0.95 15,546 -23.16 0.0033
2022-05-13 2022-03-31 13F VICOR COM 925815102 286,766 -123,383 -30.08 20,231 -61.15 0.0036
2022-02-08 2021-12-31 13F VICOR COM 925815102 410,149 66,094 19.21 52,081 12.83 0.0085
2021-11-15 2021-09-30 13F VICOR COM 925815102 344,055 -13,234 -3.70 46,159 22.18 0.0082
2021-08-13 2021-06-30 13F VICOR COM 925815102 357,289 12,006 3.48 37,780 28.68 0.0067
2021-05-12 2021-03-31 13F VICOR COM 925815102 345,283 -3,499 -1.00 29,359 -8.72 0.0055
2021-02-11 2020-12-31 13F VICOR COM 925815102 348,782 -413 -0.12 32,163 18.49 0.0063
2020-11-16 2020-09-30 13F VICOR COM 925815102 349,195 14,317 4.28 27,144 12.66 0.0060
2020-08-14 2020-06-30 13F VICOR COM 925815102 334,878 45,136 15.58 24,093 86.70 0.0057
2020-05-14 2020-03-31 13F VICOR COM 925815102 289,742 43,074 17.46 12,905 11.98 0.0037
2020-02-14 2019-12-31 13F VICOR COM 925815102 246,668 -4,097 -1.63 11,524 55.67 0.0026
2019-11-13 2019-09-30 13F VICOR COM 925815102 250,765 11,403 4.76 7,403 -0.40 0.0018
2019-08-13 2019-06-30 13F VICOR COM 925815102 239,362 3,168 1.34 7,433 1.46 0.0018
2019-05-13 2019-03-31 13F VICOR COM 925815102 236,194 -473 -0.20 7,326 -18.10 0.0018
2019-02-12 2018-12-31 13F VICOR COM 925815102 236,667 -2,210 -0.93 8,945 -18.59 0.0025
2018-11-14 2018-09-30 13F VICOR COM 925815102 238,877 8,623 3.74 10,988 9.58 0.0027
2018-09-18 2018-06-30 13F/A-1 VICOR COM 925815102 230,254 22,785 10.98 10,027 69.26 0.0025
2018-08-14 2018-06-30 13F VICOR COM 925815102 232,752 25,283 10,135
2018-05-09 2018-03-31 13F VICOR COM 925815102 207,469 -949 -0.46 5,924 36.03 0.0015
2018-02-14 2017-12-31 13F VICOR COM 925815102 208,418 540 0.26 4,355 -11.23 0.0011
2017-11-13 2017-09-30 13F VICOR COM 925815102 207,878 347 0.17 4,906 32.06 0.0013
2017-08-11 2017-06-30 13F VICOR COM 925815102 207,531 3,889 1.91 3,715 13.30 0.0010
2017-05-12 2017-03-31 13F VICOR COM 925815102 203,642 -397 -0.19 3,279 6.39 0.0009
2017-02-13 2016-12-31 13F VICOR COM 925815102 204,039 -5,456 -2.60 3,082 26.83 0.0009
2016-11-09 2016-09-30 13F VICOR COM 925815102 209,495 2,661 1.29 2,430 16.66 0.0008
2016-08-12 2016-06-30 13F VICOR COM 925815102 206,834 6,393 3.19 2,083 -0.81 0.0007
2016-08-19 2016-03-31 13F/A-1 VICOR COM 925815102 200,441 953 0.48 2,100 15.45 0.0007
2016-05-13 2016-03-31 13F VICOR COM 925815102 200,441 2,100
2016-02-12 2015-12-31 13F VICOR COM 925815102 199,488 10,307 5.45 1,819 -5.75 0.0006
2015-11-12 2015-09-30 13F VICOR COM 925815102 189,181 189,181 0.00 1,930 0.0006
2015-08-13 2015-06-30 13F VICOR COM 925815102 0 -186,821 -100.00 0 -100.00
2015-05-14 2015-03-31 13F VICOR COM 925815102 186,821 -2,604 -1.37 2,840 23.91 0.0009
2015-02-12 2014-12-31 13F VICOR COM 925815102 189,425 -9,251 -4.66 2,292 22.70 0.0007
2014-11-13 2014-09-30 13F VICOR COM 925815102 198,676 -20,373 -9.30 1,868 1.74 0.0006
2014-08-14 2014-06-30 13F VICOR COM 925815102 219,049 -25,767 -10.53 1,836 -26.50 0.0006
2014-05-14 2014-03-31 13F VICOR COM 925815102 244,816 -14,084 -5.44 2,498 -28.12 0.0008
2014-02-21 2013-12-31 13F/A-1 VICOR COM 925815102 258,900 -3,995 -1.52 3,475 61.63 0.0011
2014-02-12 2013-12-31 13F VICOR COM 925815102 258,900 3,475
2013-11-13 2013-09-30 13F VICOR COM 925815102 262,895 -14,885 -5.36 2,150 12.98 0.0008
2013-08-09 2013-06-30 13F VICOR COM 925815102 277,780 277,780 1,903 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.