BlackRock, Inc. ownership in VCV / Vicor Corporation

Vicor Corporation

DE ˙ DB ˙ US9258151029

284,20 € ↑14,30 (5,30%)

2026-06-05
DEL PRIS

Security	DE:VCV / Vicor Corporation
Institution	BlackRock, Inc.
Latest Disclosed Ownership	2,658,780 shares
Ownership	7.90%

2026-04-24 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,658,780 shares of Vicor Corporation (DE:VCV). This represents 7.9 percent ownership of the company. In their previous filing dated 2024-01-24 , BlackRock, Inc. had reported owning 3,493,260 shares, indicating a decrease of -23.89 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-04-24	2026-04-24	13G/A	3,493,260	2,658,780	-23.89	7.90	-26.17
2024-01-24	2024-01-24	13G/A	3,373,789	3,493,260	3.54	10.70	3.88
2023-11-07	2023-11-07	13G/A	2,465,368	3,373,789	36.85	10.30	35.53
2023-01-31	2023-01-31	13G/A	2,257,308	2,465,368	9.22	7.60	7.04
2022-02-01	2022-02-01	13G/A	3,051,951	2,257,308	-26.04	7.10	-26.80
2021-02-01	2021-02-01	13G/A	2,703,712	3,051,951	12.88	9.70	3.19
2020-02-06	2020-02-06	13G/A	2,349,792	2,703,712	15.06	9.40	13.25
2019-02-06	2019-02-06	13G/A	2,221,405	2,349,792	5.78	8.30	2.47
2018-01-23	2018-01-23	13G/A	1,941,933	2,221,405	14.39	8.10	12.50
2017-01-27	2017-01-27	13G/A	1,941,933	1,941,933	0.00	7.20	0.00
2017-01-26	2017-01-26	13G/A	1,679,115	1,941,933	15.65	7.20	16.13
2016-01-27	2016-01-27	13G/A		1,679,115		6.20
2015-01-30	2015-01-30	13G/A		1,637,786		6.10
2014-01-31	2014-01-31	13G/A		1,768,685		6.60
2013-01-30	2013-01-30	13G		1,565,509		5.21

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-13	2026-03-31	13F	VICOR	COM	925815102	2,884,375	-687,708	-19.25	464,384	18.62	0.0006
2026-02-12	2025-12-31	13F	VICOR	COM	925815102	3,572,083	-140,334	-3.78	391,500	112.10	0.0066
2025-11-12	2025-09-30	13F	VICOR	COM	925815102	3,712,417	288,657	8.43	184,581	18.85	0.0032
2025-08-12	2025-06-30	13F	VICOR	COM	925815102	3,423,760	-87,384	-2.49	155,302	-5.45	0.0030
2025-05-02	2025-03-31	13F	VICOR	COM	925815102	3,511,144	-50,189	-1.41	164,251	-4.55	0.0034
2025-02-07	2024-12-31	13F	VICOR	COM	925815102	3,561,333	108,077	3.13	172,084	18.37	0.0035
2024-11-13	2024-09-30	13F	VICOR	COM	925815102	3,453,256	57,362	1.69	145,382	29.11	0.0031
2024-08-13	2024-06-30	13F	VICOR	COM	925815102	3,395,894	-40,162	-1.17	112,608	-14.30	0.0025
2024-05-10	2024-03-31	13F	VICOR	COM	925815102	3,436,056	-57,204	-1.64	131,395	-16.30	0.0031
2024-02-13	2023-12-31	13F	VICOR	COM	925815102	3,493,260	984,993	39.27	156,987	6.28	0.0040
2023-11-13	2023-09-30	13F	VICOR	COM	925815102	2,508,267	36,149	1.46	147,712	10.65	0.0042
2023-08-11	2023-06-30	13F	VICOR	COM	925815102	2,472,118	-4,956	-0.20	133,494	14.81	0.0037
2023-05-12	2023-03-31	13F	VICOR	COM	925815102	2,477,074	11,706	0.47	116,274	-12.26	0.0034
2023-02-13	2022-12-31	13F	VICOR	COM	925815102	2,465,368	137,455	5.90	132,514	-3.75	0.0042
2022-11-14	2022-09-30	13F	VICOR	COM	925815102	2,327,913	33,395	1.46	137,674	9.63	0.0047
2022-08-12	2022-06-30	13F	VICOR	COM	925815102	2,294,518	45,333	2.02	125,579	-20.86	0.0040
2022-05-12	2022-03-31	13F	VICOR	COM	925815102	2,249,185	-8,123	-0.36	158,681	-44.64	0.0043
2022-02-10	2021-12-31	13F	VICOR	COM	925815102	2,257,308	-827,802	-26.83	286,633	-30.75	0.0073
2021-11-09	2021-09-30	13F	VICOR	COM	925815102	3,085,110	-45,955	-1.47	413,898	25.01	0.0116
2021-08-11	2021-06-30	13F	VICOR	COM	925815102	3,131,065	-11,723	-0.37	331,079	23.89	0.0092
2021-05-07	2021-03-31	13F	VICOR	COM	925815102	3,142,788	90,837	2.98	267,233	-5.05	0.0079
2021-02-05	2020-12-31	13F	VICOR	COM	925815102	3,051,951	124,668	4.26	281,451	23.69	0.0090
2020-11-06	2020-09-30	13F	VICOR	COM	925815102	2,927,283	238,147	8.86	227,538	17.60	0.0084
2020-08-14	2020-06-30	13F	VICOR	COM	925815102	2,689,136	81,653	3.13	193,484	66.60	0.0077
2020-05-01	2020-03-31	13F	VICOR	COM	925815102	2,607,483	-96,229	-3.56	116,138	-8.06	0.0057
2020-02-13	2019-12-31	13F	VICOR	COM	925815102	2,703,712	107,096	4.12	126,318	64.79	0.0048
2019-11-08	2019-09-30	13F	VICOR	COM	925815102	2,596,616	169,874	7.00	76,652	1.73	0.0032
2019-08-22	2019-06-30	13F/A-1	VICOR	COM	925815102	2,426,742	39,908	1.67	75,349	1.77	0.0032
2019-08-13	2019-06-30	13F	VICOR	COM	925815102	2,426,742	39,908		75,349
2019-05-09	2019-03-31	13F	VICOR	COM	925815102	2,386,834	37,042	1.58	74,040	-16.62	0.0033
2019-02-08	2018-12-31	13F	VICOR	COM	925815102	2,349,792	-11,871	-0.50	88,800	-18.26	0.0045
2018-11-09	2018-09-30	13F	VICOR	COM	925815102	2,361,663	59,495	2.58	108,636	8.36	0.0047
2018-08-09	2018-06-30	13F	VICOR	COM	925815102	2,302,168	103,418	4.70	100,259	59.72	0.0046
2018-05-09	2018-03-31	13F	VICOR	COM	925815102	2,198,750	-22,655	-1.02	62,773	35.21	0.0030
2018-02-09	2017-12-31	13F	VICOR	COM	925815102	2,221,405	70,575	3.28	46,428	-8.53	0.0022
2017-11-14	2017-09-30	13F	VICOR	COM	925815102	2,150,830	68,739	3.30	50,759	36.20	0.0026
2017-08-10	2017-06-30	13F	VICOR	COM	925815102	2,082,091	16,228	0.79	37,269	12.05	0.0020
2017-05-12	2017-03-31	13F	VICOR	COM	925815102	2,065,863	2,063,999	110,729.56	33,260	114,589.66	0.0018
2017-02-10	2016-12-31	13F	VICOR	COM	925815102	1,864	-446	-19.31	29	7.41	0.0000
2016-11-08	2016-09-30	13F	VICOR	COM	925815102	2,310	0	0.00	27	12.50	0.0000
2016-08-10	2016-06-30	13F	VICOR	COM	925815102	2,310	1,102	91.23	24	84.62	0.0000
2016-05-10	2016-03-31	13F	VICOR	COM	925815102	1,208	637	111.56	13	160.00	0.0000
2016-02-11	2015-12-31	13F	VICOR	COM	925815102	571	0	0.00	5	-16.67	0.0000
2015-11-13	2015-09-30	13F	VICOR	COM	925815102	571	0	0.00	6	-14.29	0.0000
2015-08-07	2015-06-30	13F	VICOR	COM	925815102	571	571		7		0.0000

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.