<p>Pershing Square owns a 9.9% stake in Chipotle, according to a regulatory filing out on Tuesday.</p><p>More to come...</p>    <div class="margin-top">        <h3>NOW WATCH: <a href="http://www.businessinsider.com/paul-krugman-apple-tax-debate-politics-markets-tech-ireland-eu-2016-8">Paul Krugman weighs in on the Apple tax debate</a></h3>        <div>            <div>    <script src="http://player.ooyala.com/v3/6e12e8b3387a44daacfb73afba25a76e"></script>    <div class="ooyala-video-player" data-video-autoplay="false" data-video-id="o3aDltNTE6mVpOUrwLnzhtPvU_5P2h-2" data-player-variable="ooyalapopvideo" id="ooyalaplayer_popvideo" style="width:1280px;height:720px"></div>    <script>    if (typeof RunFunctions === 'undefined') { var RunFunctions = []; }     RunFunctions.push(function()    {         var ooyalapopvideo = OO.Player.create('ooyalaplayer_popvideo', 'o3aDltNTE6mVpOUrwLnzhtPvU_5P2h-2',{ autoplay: 'false' });     });    </script>    <noscript><div>Please enable Javascript to watch this video</div></noscript></div>        </div>        <script>(function() { function createPlayer() { OO.ready(function() { RunFunctions.forEach(function(ooyalaFunction) { ooyalaFunction(); }); RunFunctions = [];}); } createPlayer(); }()); </script>    </div>

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Bill Ackman just took a massive stake in Chipotle and wants to shake things up

Pershing Square owns a 9.9% stake in Chipotle, according to a regulatory filing out on Tuesday.More to come... NOW WATCH: Paul Krugman weighs in on the Apple tax debate if (typeof RunFunctions === 'undefined') { var RunFunctions = []; } RunFunctions.push(function() { var ooyalapopvideo = OO.Player.create('ooyalaplayer_popvideo', 'o3aDltNTE6mVpOUrwLnzhtPvU_5P2h-2',{ autoplay: 'false' }); }); Please enable Javascript to watch this video (function() { function createPlayer() { OO.ready(function() { RunFunctions.forEach(function(ooyalaFunction) { ooyalaFunction(); }); RunFunctions = [];}); } createPlayer(); }());

Pershing Square owns a 9. 9 stake in Chipotle, according to a regulatory filing out on Tuesday.

Bill Ackman just took a massive stake in Chipotle and wants to shake things up

Akin Oyedele

NOW WATCH: Paul Krugman weighs in on the Apple tax debate

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