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Form N-CSR - Certified Shareholder Report:
SEC Accession No. 0001104659-20-027800
Filing Date
2020-03-02
Accepted
2020-03-02 15:22:28
Documents
13
Period of Report
2019-12-31
Effectiveness Date
2020-03-02

Document Format Files

Seq Description Document Type Size
1 N-CSR tm206610d2_ncsr.htm N-CSR 7366924
2 EX-99.CODE ETH tm206610d2_ex99-codeeth.htm EX-99.CODE ETH 28912
3 EX-99.CERT tm206610d2_ex99-cert.htm EX-99.CERT 20583
4 EX-99.906 CERT tm206610d2_ex99-906cert.htm EX-99.906 CERT 14303
5 GRAPHIC tm206610d2_ncsrimg001.jpg GRAPHIC 6370
6 GRAPHIC tm206610d2_ncsrimg002.jpg GRAPHIC 17551
7 GRAPHIC tm206610d2_ncsrimg003.jpg GRAPHIC 3935
8 GRAPHIC tm206610d2_ncsrimg004.jpg GRAPHIC 13309
9 GRAPHIC tm206610d2_ncsrimg005.jpg GRAPHIC 1058
10 GRAPHIC tm206610d2_ncsrimg006.jpg GRAPHIC 1326
11 GRAPHIC tm206610d2_ncsrimg007.jpg GRAPHIC 984
12 GRAPHIC tm206610d2_ncsrimg008.jpg GRAPHIC 20304
13 GRAPHIC tm206610d2_ncsrimg009.jpg GRAPHIC 1351
  Complete submission text file 0001104659-20-027800.txt   7525528

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000862084      
Series S000002853   Vanguard Institutional Index Fund
Class/Contract C000007825   Institutional Shares VINIX
Class/Contract C000007826   Institutional Plus Shares VIIIX
  Status Name Ticker Symbol
CIK 0000862084      
Series S000002855   Vanguard Institutional Total Stock Market Index Fund
Class/Contract C000007828   Institutional Shares VITNX
Class/Contract C000007829   Institutional Plus Shares VITPX
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482 6106691000
VANGUARD INSTITUTIONAL INDEX FUNDS (Filer) CIK: 0000862084 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: N-CSR | Act: 40 | File No.: 811-06093 | Film No.: 20676409