Vanguard Admiral Funds - Vanguard S&P Mid-Cap 400 ETF
US ˙ ARCA ˙ US9219328856

SecurityIVOO / Vanguard Admiral Funds - Vanguard S&P Mid-Cap 400 ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership124,792 shares
Latest Disclosed Value $ 14,275,164
Advisor Group Holdings, Inc. reports 12.28% decrease in ownership of IVOO / Vanguard Admiral Funds - Vanguard S&P Mid-Cap 400 ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 124,792 shares of Vanguard Admiral Funds - Vanguard S&P Mid-Cap 400 ETF (US:IVOO) valued at $14,266,221 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 142,256 shares of Vanguard Admiral Funds - Vanguard S&P Mid-Cap 400 ETF. This represents a change in shares of -12.28% during the quarter. The current value of the position is $15,616,471 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)
2026-05-15 2026-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 124,792 -17,464 -12.28 14,275 -10.30 0.0122
2026-02-17 2025-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 142,256 19,400 15.79 15,914 17.33 0.0233
2025-11-14 2025-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 122,856 7,750 6.73 13,563 12.17 0.0190
2025-09-04 2025-06-30 13F/A-1 VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 115,106 8,363 7.83 12,092 14.71 0.0215
2025-08-13 2025-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 107,498 755 11,335 0.0131
2025-05-12 2025-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 106,743 18,084 20.40 10,542 12.64 0.0235
2025-06-06 2024-12-31 13F/A-1 VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 88,659 8,986 11.28 9,359 11.17 0.0210
2025-02-07 2024-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 70,317 -9,356 7,430 0.0190
2024-11-13 2024-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 79,673 -1,026 -1.27 8,419 5.23 0.0190
2024-08-13 2024-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 80,699 -27,881 -25.68 8,001 -28.49 0.0189
2024-05-10 2024-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 108,580 1,625 1.52 11,187 11.29 0.0250
2024-02-12 2023-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 106,955 -17,149 -13.82 10,053 -4.19 0.0176
2023-11-13 2023-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 124,104 14,732 13.47 10,492 8.31 0.0155
2023-08-21 2023-06-30 13F/A-1 VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 109,372 4,591 4.38 9,688 9.16 0.0174
2023-08-10 2023-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 109,372 4,591 9,688 0.0026
2023-05-12 2023-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 104,781 39,986 61.71 8,874 -16.30 0.0167
2023-02-10 2022-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 64,795 19,943 44.46 10,603 58.95 0.0215
2022-11-14 2022-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 44,852 1,952 4.55 6,670 1.51 0.0152
2022-08-10 2022-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 42,900 -745 -1.71 6,571 -17.13 0.0145
2022-05-04 2022-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 43,645 3,015 7.42 7,929 1.86 0.0154
2022-02-03 2021-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 40,630 -614 -1.49 7,784 5.90 0.0147
2021-11-05 2021-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 41,244 -4,378 -9.60 7,350 -11.52 0.0153
2021-08-02 2021-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 45,622 11,784 34.82 8,307 39.12 0.0180
2021-05-13 2021-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 33,838 -488 -1.42 5,971 11.77 0.0144
2021-02-10 2020-12-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 34,326 -2,936 -7.88 5,342 14.15 0.0143
2020-11-12 2020-09-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 37,262 2,402 6.89 4,680 11.64 0.0140
2020-08-14 2020-06-30 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 34,860 12 0.03 4,192 36.86 0.0141
2020-05-18 2020-03-31 13F VANGUARD ADMIRAL FDS MIDCP 400 IDX 921932885 34,848 34,848 3,063 0.0125
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.