Vanguard Index Funds - Vanguard Mid-Cap ETF
US ˙ ARCA ˙ US9229086296

SecurityVO / Vanguard Index Funds - Vanguard Mid-Cap ETF
InstitutionSpinnaker Trust
Latest Disclosed Ownership14,274 shares
Latest Disclosed Value $ 4,099,190
Spinnaker Trust reports 30.01% decrease in ownership of VO / Vanguard Index Funds - Vanguard Mid-Cap ETF

On April 23, 2026 - Spinnaker Trust filed a 13F-HR form disclosing ownership of 14,274 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF (US:VO) valued at $4,099,207 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 20,393 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF. This represents a change in shares of -30.01% during the quarter. The current value of the position is $1,135,497 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)
2026-04-23 2026-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 14,274 -6,119 -30.01 4,099 -30.74 0.1995
2026-02-10 2025-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 20,393 173 0.86 5,918 -0.35 0.3168
2025-11-05 2025-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 20,220 226 1.13 5,940 6.17 0.3296
2025-08-04 2025-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 19,994 -17 -0.08 5,595 8.10 0.3365
2025-04-25 2025-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 20,011 -626 -3.03 5,175 -5.05 0.3378
2025-01-30 2024-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 20,637 176 0.86 5,451 0.96 0.3438
2024-10-31 2024-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 20,461 -20 -0.10 5,398 8.87 0.3327
2024-07-31 2024-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 20,481 109 0.54 4,958 -2.59 0.3175
2024-05-06 2024-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 20,372 1,439 7.60 5,090 15.58 0.3286
2024-02-02 2023-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 18,933 787 4.34 4,405 16.57 0.2996
2023-11-08 2023-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 18,146 221 1.23 3,779 -4.26 0.2844
2023-08-01 2023-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 17,925 -147 -0.81 3,946 3.54 0.2867
2023-04-13 2023-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 18,072 -37 -0.20 3,812 126,933.33 0.2889
2023-02-02 2022-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 18,109 -162 -0.89 4 -99.91 0.2876
2022-10-28 2022-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 18,271 150 0.83 3,435 -3.75 0.2848
2022-07-25 2022-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 18,121 17 0.09 3,569 -17.12 0.2753
2022-05-02 2022-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 18,104 162 0.90 4,306 -5.80 0.2904
2022-01-31 2021-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 17,942 65 0.36 4,571 7.98 0.2928
2021-11-02 2021-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 17,877 7,264 68.44 4,233 68.04 0.2944
2021-08-09 2021-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 10,613 -204 -1.89 2,519 5.22 0.1755
2021-04-30 2021-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 10,817 -1,688 -13.50 2,394 -7.39 0.1797
2021-01-26 2020-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 12,505 -95 -0.75 2,585 16.44 0.2061
2020-10-27 2020-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 12,600 -578 -4.39 2,220 2.78 0.1968
2020-07-21 2020-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 13,178 185 1.42 2,160 26.32 0.2047
2020-05-05 2020-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 12,993 1,094 9.19 1,710 -19.34 0.1881
2020-02-05 2019-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 11,899 444 3.88 2,120 10.47 0.1936
2019-11-12 2019-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 11,455 366 3.30 1,919 3.56 0.1893
2019-07-11 2019-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 11,089 -86 -0.77 1,853 3.17 0.1861
2019-04-29 2019-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 11,175 -150 -1.32 1,796 14.83 0.1805
2019-02-04 2018-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 11,325 -698 -5.81 1,564 -20.77 0.1776
2018-10-23 2018-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 12,023 322 2.75 1,974 7.05 0.1950
2018-08-02 2018-06-30 13F Vanguard Mid-Cap ETF Equities 922908629 11,701 135 1.17 1,844 3.42 0.1965
2018-05-10 2018-03-31 13F Vanguard Mid-Cap ETF Equities 922908629 11,566 376 3.36 1,783 3.00 0.1940
2018-02-09 2017-12-31 13F Vanguard Mid-Cap ETF Equities 922908629 11,190 499 4.67 1,731 10.18 0.2009
2017-10-26 2017-09-30 13F Vanguard Mid-Cap ETF Equities 922908629 10,691 52 0.49 1,571 3.63 0.1963
2017-07-27 2017-06-30 13F Vanguard Mid-Cap ETF Com 922908629 10,639 350 3.40 1,516 5.79 0.1894
2017-05-10 2017-03-31 13F Vanguard Mid-Cap ETF Com 922908629 10,289 685 7.13 1,433 13.37 0.1862
2017-02-15 2016-12-31 13F Vanguard Mid-Cap ETF Com 922908629 9,604 1,035 12.08 1,264 21.66 0.1700
2016-11-03 2016-09-30 13F Vanguard Mid-Cap ETF Com 922908629 8,569 -338 -3.79 1,039 -5.63 0.1459
2016-08-01 2016-06-30 13F Vanguard Mid-Cap ETF Com 922908629 8,907 338 3.94 1,101 5.97 0.1517
2016-05-05 2016-03-31 13F Vanguard Mid-Cap ETF Com 922908629 8,569 -924 -9.73 1,039 -8.86 0.1459
2016-01-29 2015-12-31 13F Vanguard Mid-Cap ETF Com 922908629 9,493 -59 -0.62 1,140 2.33 0.1627
2015-11-06 2015-09-30 13F Vanguard Mid-Cap ETF Com 922908629 9,552 450 4.94 1,114 -3.97 0.1705
2015-08-05 2015-06-30 13F Vanguard Mid-Cap ETF Com 922908629 9,102 -38 -0.42 1,160 -4.37 0.1731
2015-04-17 2015-03-31 13F Vanguard Mid-Cap ETF Com 922908629 9,140 175 1.95 1,213 9.48 0.1751
2015-01-22 2014-12-31 13F Vanguard Mid-Cap ETF Com 922908629 8,965 598 7.15 1,108 12.83 0.1645
2014-11-03 2014-09-30 13F Vanguard Mid-Cap ETF Com 922908629 8,367 2,084 33.17 982 31.64 0.1586
2014-07-28 2014-06-30 13F Vanguard Mid-Cap ETF Com 922908629 6,283 113 1.83 746 6.42 0.1223
2014-04-23 2014-03-31 13F Vanguard Mid-Cap ETF Com 922908629 6,170 321 5.49 701 8.85 0.1153
2014-01-24 2013-12-31 13F Vanguard Mid-Cap ETF Com 922908629 5,849 273 4.90 644 12.59 0.1073
2013-10-28 2013-09-30 13F Vanguard Mid-Cap ETF Com 922908629 5,576 301 5.71 572 13.94 0.1036
2013-08-08 2013-06-30 13F Vanguard Mid-Cap ETF Com 922908629 5,275 5,275 502 0.0945
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.