Filing Details

Accession Number:
0001104659-10-045074
Form Type:
4
Zero Holdings:
No
Publication Time:
2010-08-18 13:00:00
Reporting Period:
2010-08-16
Filing Date:
2010-08-18
Accepted Time:
2010-08-18 18:16:12
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1373671 Isilon Systems Inc. ISLN Computer Storage Devices (3572) 912101027
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1106910 Atlas Venture Fund V Lp 890 Winter Street
Suite 320
Waltham MA 02451
No No Yes No
1133805 Atlas Venture Associates V Lp 890 Winter Street
Suite 320
Waltham MA 02451
No No Yes No
1133807 Atlas Venture Entrepreneurs Fund V Lp 890 Winter Street
Suite 320
Waltham MA 02451
No No Yes No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Disposition 2010-08-16 225,000 $17.27 13,350,090 No 4 S Indirect See Footnote
Common Stock Disposition 2010-08-17 152,000 $17.84 13,198,090 No 4 S Indirect See Footnote
Common Stock Disposition 2010-08-18 68,000 $17.58 13,130,090 No 4 S Indirect See Footnote
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Indirect See Footnote
No 4 S Indirect See Footnote
No 4 S Indirect See Footnote
Footnotes
  1. Sale of 222,039 shares of the Issuer's Common Stock by Atlas Venture Fund V, L.P. ("Atlas V") and of 2,961 shares of the Issuer's Common Stock held by Atlas Venture Entrepreneurs' Fund V, L.P. ("AVE V"). These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.
  2. Represents a weighted-average price of shares disposed. These shares were sold in multiple transactions at prices ranging from $17.00 to $17.52, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth.
  3. Represents aggregate shares beneficially owned after the reported transaction. Includes 13,174,431 shares held directly by Atlas V and 175,659 shares held directly by AVE V. These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.
  4. Sale of 150,000 shares of the Issuer's Common Stock by Atlas V and of 2,000 shares of the Issuer's Common Stock held by AVE V. These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.
  5. Represents a weighted-average price of shares disposed. These shares were sold in multiple transactions at prices ranging from $17.51 to $18.03, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth.
  6. Represents aggregate shares beneficially owned after the reported transaction. Includes 13,024,431 shares held directly by Atlas V and 173,659 shares held directly by AVE V. These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.
  7. Sale of 67,105 shares of the Issuer's Common Stock by Atlas V and of 895 shares of the Issuer's Common Stock held by AVE V. These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.
  8. Represents a weighted-average price of shares disposed. These shares were sold in multiple transactions at prices ranging from $17.50 to $17.75, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth.
  9. Represents aggregate shares beneficially owned after all of the reported transactions. Includes 12,957,326 shares held directly by Atlas V and 172,764 shares held directly by AVE V. These shares are owned directly by Atlas V and AVE V. Atlas Venture Associates V, L.P. is the general partner of Atlas V and AVE V. Each of the Filing Persons disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.