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

SecurityVO / Vanguard Index Funds - Vanguard Mid-Cap ETF
InstitutionWhittier Trust Co
Latest Disclosed Ownership107,478 shares
Latest Disclosed Value $ 31,316,940
Whittier Trust Co reports 0.65% increase in ownership of VO / Vanguard Index Funds - Vanguard Mid-Cap ETF

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 107,478 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF (US:VO) valued at $30,865,532 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 106,789 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF. This represents a change in shares of 0.65% during the quarter. The current value of the position is $8,549,875 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)
2026-04-28 2026-03-31 13F VANGUARD MID - CAP common 922908629 107,478 689 0.65 31,317 -2.05 0.1849
2026-01-26 2025-12-31 13F VANGUARD MID - CAP common 922908629 106,789 7,699 7.77 31,972 9.30 0.3462
2025-10-31 2025-09-30 13F VANGUARD INDEX FDS common 922908629 99,090 140 0.14 29,252 5.65 0.3329
2025-07-30 2025-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 98,950 1,860 1.92 27,688 10.28 0.3339
2025-05-02 2025-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 97,090 -26 -0.03 25,108 -2.12 0.3498
2025-02-11 2024-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 97,116 -4,990 -4.89 25,651 -4.77 0.3379
2024-10-21 2024-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 102,106 -431 -0.42 26,938 8.51 0.3605
2024-07-29 2024-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 102,537 1,746 1.73 24,824 -1.43 0.3522
2024-05-02 2024-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 100,791 -1,892 -1.84 25,184 5.42 0.3672
2024-01-11 2023-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 102,683 -1,288 -1.24 23,888 10.34 0.3873
2023-10-27 2023-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 103,971 -152 -0.15 21,651 -5.55 0.3848
2023-07-24 2023-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 104,123 -192 -0.18 22,924 4.19 0.3985
2023-04-21 2023-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 104,315 -92 -0.09 22,002 3.40 0.4006
2023-01-25 2022-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 104,407 250 0.24 21,279 8.68 0.4139
2022-10-21 2022-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 104,157 80 0.08 19,579 -4.49 0.4103
2022-07-28 2022-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF EQUITY 922908629 104,077 -276 -0.26 20,500 -17.40 0.4141
2022-04-29 2022-03-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 104,353 994 0.96 24,819 -5.75 0.4185
2022-01-19 2021-12-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 103,359 -613 -0.59 26,333 6.98 0.4279
2021-11-01 2021-09-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 103,972 5,186 5.25 24,616 4.99 0.4482
2021-07-29 2021-06-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 98,786 -148 -0.15 23,447 7.07 0.4177
2021-04-26 2021-03-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 98,934 325 0.33 21,898 7.40 0.4253
2021-01-29 2020-12-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 98,609 5,142 5.50 20,390 23.76 0.4355
2020-10-30 2020-09-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 93,467 662 0.71 16,475 8.31 0.3923
2020-07-10 2020-06-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 92,805 22,717 32.41 15,211 64.85 0.4224
2020-04-27 2020-03-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 70,088 -1,060 -1.49 9,227 -27.21 0.3013
2020-01-31 2019-12-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 71,148 -602 -0.84 12,677 5.42 0.3326
2019-10-18 2019-09-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 71,750 903 1.27 12,025 1.54 0.3441
2019-07-23 2019-06-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 70,847 -2,913 -3.95 11,843 -0.12 0.3478
2019-04-29 2019-03-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 73,760 12,909 21.21 11,857 41.02 0.3625
2019-02-07 2018-12-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 60,851 3,685 6.45 8,408 -10.42 0.2893
2018-10-23 2018-09-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 57,166 34 0.06 9,386 4.22 0.2928
2018-07-27 2018-06-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 57,132 11,634 25.57 9,006 28.36 0.2975
2018-07-20 2018-06-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 6,503 -38,995 772
2018-05-01 2018-03-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 45,498 4,268 10.35 7,016 9.95 0.2357
2018-02-07 2017-12-31 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 41,230 15,549 60.55 6,381 69.03 0.2226
2017-10-23 2017-09-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 25,681 0 0.00 3,775 3.14 0.1376
2017-07-20 2017-06-30 13F VANGUARD INDEX FDS MID CAP ETF US MID-CAP EQUITIES 922908629 25,681 3,765 17.18 3,660 19.92 0.1415
2017-04-26 2017-03-31 13F VANGUARD INDEX FDS US SMALL AND MID-CAP EQUITIES 922908629 21,916 445 2.07 3,052 8.00 0.1231
2017-01-18 2016-12-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 21,471 66 0.31 2,826 1.98 0.1202
2016-11-10 2016-09-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 21,405 -1,192 -5.28 2,771 -0.82 0.1207
2016-07-28 2016-06-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 22,597 -2,939 -11.51 2,794 -9.73 0.1231
2016-04-28 2016-03-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 25,536 1,063 4.34 3,095 5.31 0.1369
2016-02-10 2015-12-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 24,473 115 0.47 2,939 3.41 0.1334
2015-11-12 2015-09-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 24,358 7,566 45.06 2,842 32.80 0.1382
2015-08-13 2015-06-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 16,792 5,077 43.34 2,140 37.62 0.0950
2015-05-05 2015-03-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 11,715 11,715 0.00 1,555 0.0713
2015-02-04 2014-12-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 0 -6,792 -100.00 0 -100.00
2014-11-07 2014-09-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 6,792 289 4.44 797 3.24 0.0388
2014-08-04 2014-06-30 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 6,503 0 0.00 772 4.47 0.0381
2014-05-01 2014-03-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 6,503 -1,022 -13.58 739 -10.75 0.0379
2014-02-05 2013-12-31 13F VANGUARD INDEX FDS MID CAP ETF US SMALL AND MID-CAP EQUITIES 922908629 7,525 -1,040 -12.14 828 -5.69 0.0425
2013-11-18 2013-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 8,565 50 0.59 878 8.40 0.0475
2013-08-14 2013-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 8,515 8,515 810 0.0454
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.