13D Filing: Bancroft Thomas and Wesco Aircraft Holdings Inc (WAIR)

Page 4 of 6 – SEC Filing


This Amendment No. 1 amends and supplements the Schedule 13D originally filed with the Securities and
Exchange Commission (the SEC) on February 27, 2015 (collectively, this Schedule 13D) by Thomas M. Bancroft III (Mr. Bancroft) and Makaira Partners, LLC (Makaira and
together, the Reporting Persons), with respect to the common stock, par value $0.001 per share, of Wesco Aircraft Holdings, Inc. (Common Stock), a Delaware corporation (the Company). The
filing of any amendment to this Schedule 13D shall not be construed to be an admission that a material change has occurred in the facts set forth in this Schedule 13D or that such amendment is required under Rule 13d-2 of the Securities Exchange Act
of 1934, as amended.

Item 3. Source or Amount of Funds or Other Consideration.

Item 3 of this Schedule 13D is hereby amended to add the following information:

Since February 27, 2015, private investment funds and separate accounts over which Makaira has discretionary trading authority (the
Makaira Clients) have purchased, in the aggregate, 9,325,308 shares of Common Stock at an aggregate purchase price (excluding trading commissions and related administrative costs) of $20,481,151.69. The source of funding for these
purchases was capital of the respective private investment funds and separate accounts.

In addition, as partial compensation for
Mr. Bancrofts service on the board of directors of the Company (the Board), the Company issued to Mr. Bancroft 4,734 shares of Common Stock for fiscal year 2016 and 5,956 shares of Common Stock for fiscal year
2017. Of the shares issued for fiscal year 2017, 1,489 shares will vest on both June 30, 2017 and September 30, 2017, subject to Mr. Bancrofts continued service on the Board through the applicable vesting date.

Item 4. Purpose of Transaction.

Item 4
of this Schedule 13D is hereby amended to add the following information:

The information set forth in Item 3 above is
incorporated by reference into this Item 4.

The Common Stock beneficially owned by the Reporting Persons were acquired for
investment purposes.

Item 5. Interest in Securities of the Issuer.

Item 5(a), 5(b) and 5(c) of this Schedule 13D is hereby amended and restated as follows:

(a) Calculation of percentage ownership reported in this Schedule 13D is based upon 99,686,786 shares of Common Stock outstanding as of March 31, 2017, as reported in the Quarterly Report on Form 10-Q filed by the
Company on May 10, 2017.
Makaira beneficially owns, in the aggregate, 9,325,308 shares of Common Stock, which represent approximately 9.4% of the outstanding Common Stock.
Mr. Bancroft may be deemed to beneficially own (including Common Stock beneficially owned by Makaira), in the aggregate, 9,403,428 shares of Common Stock, which represent approximately 9.4% of the outstanding Common
Stock. Shares reported as being beneficially owned by Mr. Bancroft include the shares reported as beneficially owned by Makaira. Mr. Bancroft is the Managing Member of Makaira and thus may be deemed to beneficially own shares beneficially
owned by Makaira.
(b) Makaira has the power to vote or to direct the vote and the power to dispose or to direct the disposition of all 9,325,308 shares of Common Stock beneficially owned by Makaira. However, in his capacity as Managing
Member, Portfolio Manager and Chief Investment Officer of Makaira, Mr. Bancroft may be deemed to share with Makaira the power to vote or to direct the vote and the power to dispose or to direct the disposition of all Common Stock beneficially
owned by Makaira.
In addition, Mr. Bancroft has the sole power to vote or to direct the vote and the sole power to dispose or to direct the disposition of the 78,120 shares of Common Stock that are beneficially owned by him
separately from the Common Stock beneficially owned by Makaira.
(c) The information set forth in Item 3 above is incorporated herein by reference in response to this Item 5(c).
On May 26, 2017, Makaira purchased on the open market, on behalf of one or more Makaira Clients, an aggregate of 150,000 shares of Common Stock at the price (excluding trading commissions and related administrative
costs) of approximately $9.4529 per share.

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