The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

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OMB Number: 3235-0006
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Report for the Calendar Year or Quarter Ended: 03-31-2019
Check here if Amendment    Amendment Number:
This Amendment (Check only one.):    is a restatement.
   adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Allen & CO LLC
Address: 711 Fifth Avenue
New York, NY  10022
Form 13F File Number: 028-18385

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Howard M. Felson
Title: Vice President
Phone: 212-832-8000
Signature, Place, and Date of Signing:
/s/ Howard M. Felson New YorkNY 05-10-2019
[Signature] [City, State] [Date]
Allen & Company LLC ("Allen LLC") hereby advises that it may be deemed to share investment discretion with respect to 13(f) securities held by it with Allen Operations LLC ("Allen Operations"), of which Allen LLC is a wholly-owned subsidiary. Allen LLC hereby further advises that Allen Operations is filing on Allen LLC's behalf in Allen Operations' Form 13F for the period ended March 31, 2019 with respect to such 13(f) securities.
Report Type (Check only one.):
   13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
X 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
   13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name
028-12302 ALLEN OPERATIONS LLC