13D Filing: First Pacific Advisors LLC and Esterline Technologies Corp (ESL)

(a) and (b) Items 7 through 11 and 13 of each of the cover pages of this Schedule 13D are incorporated
herein by reference.

Set forth below is the aggregate number of shares of Common Stock directly held, as of the date hereof, by each of the following FPA
investment advisory clients.

As the investment adviser of FPA Crescent Fund, the Managed Accounts and the Private Investment Funds (collectively, the
FPA Clients), FPA may be deemed to share voting and/or investment power over the securities of the Issuer held by the FPA Clients and therefore may be deemed to beneficially own such securities.

(c) Except as disclosed in Exhibit 99.1, there have been no transactions in securities of the Issuer during the 60 days prior to the date hereof by any of the
Reporting Persons. Exhibit 99.1 is incorporated herein by reference.

(d) The disclosure regarding the relationship between the Reporting Persons in Item
2(c) of this Schedule 13D is incorporated by reference herein. The limited partners of (or investors in) each of the FPA Clients for which FPA acts as general partner, managing member and/or investment adviser have the right to participate in the
receipt of dividends from, or proceeds from the sale of, the shares of Common Stock held for the accounts of their respective funds in accordance with their respective limited partnership interests (or investment percentages) in their respective
funds.

(e) Not applicable.

Item 6 of Schedule 13D is supplemented and superseded, as the case may be, as follows:

On November 17, 2016, American-style call options referencing an aggregate of 2,700 shares of Common Stock of the Issuer that were sold by FPA Hawkeye-7 were exercised by the counterparty at the exercise price of $70 per share and on November 18, 2016, American-style call options referencing an aggregate of 9,000 shares of Common Stock of the Issuer
that were sold by FPA Hawkeye-7 were exercised by the counterparty at the exercise price of $70 per share. Furthermore, on November 17, 2016, American-style call options referencing an aggregate of 1,500
shares of Common Stock of the Issuer that were sold by FPA Hawkeye were exercised by the counterparty at the exercise price of $70 per share and on November 18, 2016, American-style call options referencing an aggregate of 6,900 shares of
Common Stock of the Issuer that were sold by FPA Hawkeye were exercised at the exercise price of $70 per share.