Dear Valued Visitor,

We have noticed that you are using an ad blocker software.

Although advertisements on the web pages may degrade your experience, our business certainly depends on them and we can only keep providing you high-quality research based articles as long as we can display ads on our pages.

To view this article, you can disable your ad blocker and refresh this page or simply login.

We only allow registered users to use ad blockers. You can sign up for free by clicking here or you can login if you are already a member.

Filing Details

Accession Number:
Form Type:
Zero Holdings:
Publication Time:
2010-08-30 14:38:53
Reporting Period:
Filing Date:
Filing Date Changed:
Accepted Time:
2010-08-30 15:38:53
SEC Url:
Form 4 Filing
Cik Name Symbol Sector (SIC) IRS No
317771 Tellabs Inc TLAB Telephone & Telegraph Apparatus (3661) 363831568
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1012910 J Michael Birck One Tellabs Center
1415 W. Diehl Road
Naperville IL 60563
Chairman Of The Board Yes Yes No 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 2010-08-26 200,000 $7.21 13,711,000 No 4 S Indirect By Partnership
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Indirect By Partnership
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 16,331,671 Direct
Common Stock 1,086 Indirect By Managed Account
Common Stock 2,248,870 Indirect By Spouse
  1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by Oak Street Investments, L. P. on August 31, 2009.
  2. This transaction was executed in multiple trades at prices ranging from $7.13 to $7.30. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  3. Held by Oak Street - Mr. Birck disclaims beneficial ownership of the shares held by Oak Street except to the extent of his pecuniary interest therein.
  4. Held through the Tellabs 401(k) Plan.
  5. Held by spouse - Mr. Birck disclaims beneficial ownership of these shares.