BlackRock MuniVest Fund, Inc.
US ˙ NYSE ˙ US09253R1059
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityMVF / BlackRock MuniVest Fund, Inc.
InstitutionClaybrook Capital, LLC
Latest Disclosed Ownership312,220 shares
Latest Disclosed Value $ 1,892,053
Claybrook Capital, LLC ownership in MVF / BlackRock MuniVest Fund, Inc.

On October 24, 2023 - Claybrook Capital, LLC filed a 13F-HR form disclosing ownership of 312,220 shares of BlackRock MuniVest Fund, Inc. (US:MVF) valued at $1,892,053 USD as of September 30, 2023. The entity filed a previous 13F-HR on July 17, 2023 disclosing 312,220 shares of BlackRock MuniVest Fund, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,207,395 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)
2023-10-24 2023-09-30 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 0 0.00 1,892 -9.95 1.0827
2023-07-17 2023-06-30 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 0 0.00 2,101 -2.73 1.1211
2023-04-18 2023-03-31 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 0 0.00 2,161 -1.28 1.1985
2023-01-24 2022-12-31 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 0 0.00 2,189 5.55 0.0013
2022-10-20 2022-09-30 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 0 0.00 2,073 -10.88 1.3153
2022-07-18 2022-06-30 13F BLACKROCK MUNIVEST FD COM 09253R105 312,220 20,670 7.09 2,326 -2.23 1.3739
2022-05-06 2022-03-31 13F BLACKROCK MUNIVEST FD COM 09253R105 291,550 0 0.00 2,379 -14.73 1.1786
2022-01-20 2021-12-31 13F BLACKROCK MUNIVEST FD COM 09253R105 291,550 0 0.00 2,790 1.05 1.3100
2021-11-15 2021-09-30 13F BLACKROCK MUNIVEST FD COM 09253R105 291,550 291,550 2,761 1.3960
2021-07-26 2021-06-30 13F BLACKROCK MUNIVEST FD COM 09253R105 0 -291,550 -100.00 0 -100.00
2021-04-30 2021-03-31 13F BLACKROCK MUNIVEST FD COM 09253R105 291,550 32,750 12.65 2,711 14.00 1.5749
2021-02-02 2020-12-31 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,378 5.88 1.5670
2020-10-28 2020-09-30 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,246 3.31 1.6867
2020-07-29 2020-06-30 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,174 3.72 1.8614
2020-05-05 2020-03-31 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,096 -13.85 1.9039
2020-02-11 2019-12-31 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,433 2.18 1.1317
2019-11-13 2019-09-30 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,381 0.34 1.2247
2019-08-13 2019-06-30 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 0 0.00 2,373 1.76 1.2466
2019-05-15 2019-03-31 13F BLACKROCK MUNIVEST FD COM 09253R105 258,800 258,800 2,332 1.2223
2019-02-14 2018-12-31 13F BLACKROCK MUNIVEST FD Equities 09253R105 0 -256,000 -100.00 0 -100.00
2018-11-23 2018-09-30 13F BLACKROCK MUNIVEST FD Equities 09253R105 256,000 61,000 31.28 2,240 31.15 1.3047
2018-08-13 2018-06-30 13F BLACKROCK MUNIVEST FD Equities 09253R105 195,000 0 0.00 1,708 -1.16 1.0709
2018-05-11 2018-03-31 13F BLACKROCK MUNIVEST FD Equities 09253R105 195,000 0 0.00 1,728 -7.79 1.1281
2018-05-08 2017-12-31 13F BLACKROCK MUNIVEST FD COM 09253R105 195,000 195,000 1,874 1.3308
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.