Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer.

Yesterday, May 14, 2015, 102 U.S. common stocks issued filings of shares being bought or sold by insiders. The transactions ranged in value from $67.14 to $168,133,945.20.

Highlighted Stocks Traded by Insiders:

Western Gas Partners (WES) - FREE Research Report

Crane James R, who is Director at Western Gas Partners, sold 300,000 shares at $68.77 on May 14, 2015. Following this transaction, the Director owned 503,798 shares meaning that the stake was reduced by 37.32% with the 300,000-share transaction.

The shares most recently traded at $69.50, up $0.73, or 1.05% since the insider transaction. Historical insider transactions for Western Gas Partners go as follows:

  • 4-Week # shares bought: 400
  • 4-Week # shares sold: 300,000
  • 12-Week # shares bought: 400
  • 12-Week # shares sold: 300,000
  • 24-Week # shares bought: 400
  • 24-Week # shares sold: 300,000

The average volume for Western Gas Partners has been 253,700 shares per day over the past 30 days. Western Gas Partners has a market cap of $8.9 billion and is part of the basic materials sector and energy industry. Shares are down 4.96% year-to-date as of the close of trading on Thursday.

Western Gas Partners, LP owns, operates, acquires, and develops midstream energy assets in the Rocky Mountains, the Mid-Continent, North-central Pennsylvania, and Texas. The stock currently has a dividend yield of 4.2%. The company has a P/E ratio of 37.5. Currently, there are 10 analysts who rate Western Gas Partners a buy, no analysts rate it a sell, and 2 rate it a hold.

Exclusive Offer: Get the latest Stock Analysis on WES - FREE

TheStreet Quant Ratings rates Western Gas Partners as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, good cash flow from operations and expanding profit margins. We feel its strengths outweigh the fact that the company has had lackluster performance in the stock itself. Get the full Western Gas Partners Ratings Report from TheStreet Quant Ratings now.

EXCLUSIVE OFFER: See inside Jim Cramer's multi-million dollar charitable trust portfolio to see the stocks he thinks could be potential winners. Click here to see his holdings for 14-days FREE.

IMS Health Holdings (IMS) - FREE Research Report

Green Equity Investors V, L.P., who is Director at IMS Health Holdings, sold 6.3 million shares at $26.78 on May 14, 2015. Following this transaction, the Director owned 154,473 shares meaning that the stake was reduced by 97.6% with the 6.3 million-share transaction.

The shares most recently traded at $29.15, up $2.37, or 8.13% since the insider transaction. Historical insider transactions for IMS Health Holdings go as follows:

  • 4-Week # shares sold: 15.3 million
  • 12-Week # shares bought: 3,500
  • 12-Week # shares sold: 15.3 million
  • 24-Week # shares bought: 3,500
  • 24-Week # shares sold: 15.3 million

The average volume for IMS Health Holdings has been 753,800 shares per day over the past 30 days. IMS Health Holdings has a market cap of $9.7 billion and is part of the technology sector and computer software & services industry. Shares are up 12.09% year-to-date as of the close of trading on Thursday.

IMS Health Holdings, Inc. provides information and technology services to healthcare industry worldwide. Currently, there are 11 analysts who rate IMS Health Holdings a buy, no analysts rate it a sell, and 4 rate it a hold.

Exclusive Offer: Get the latest Stock Analysis on IMS - FREE

TheStreet Quant Ratings rates IMS Health Holdings as a hold. The company's strengths can be seen in multiple areas, such as its solid stock price performance, compelling growth in net income and attractive valuation levels. However, as a counter to these strengths, we find that the company has favored debt over equity in the management of its balance sheet. Get the full IMS Health Holdings Ratings Report from TheStreet Quant Ratings now.

EXCLUSIVE OFFER: See inside Jim Cramer's multi-million dollar charitable trust portfolio to see the stocks he thinks could be potential winners. Click here to see his holdings for 14-days FREE.

HCA Holdings (HCA) - FREE Research Report

Morgan Sandra L., who is SVP-Provider Relations at HCA Holdings, sold 4,900 shares at $76.35 on May 14, 2015. Following this transaction, the SVP-Provider Relations owned 1,212 shares meaning that the stake was reduced by 80.17% with the 4,900-share transaction.

The shares most recently traded at $79.01, up $2.66, or 3.36% since the insider transaction. Historical insider transactions for HCA Holdings go as follows:

  • 4-Week # shares bought: 14,356
  • 4-Week # shares sold: 882
  • 12-Week # shares bought: 14,356
  • 12-Week # shares sold: 882
  • 24-Week # shares bought: 14,356
  • 24-Week # shares sold: 29,454

The average volume for HCA Holdings has been 3.4 million shares per day over the past 30 days. HCA Holdings has a market cap of $32.2 billion and is part of the health care sector and health services industry. Shares are up 4.25% year-to-date as of the close of trading on Thursday.

HCA Holdings, Inc., through its subsidiaries, provides health care services in the United States. The company has a P/E ratio of 16.3. Currently, there are 16 analysts who rate HCA Holdings a buy, no analysts rate it a sell, and 3 rate it a hold.

Exclusive Offer: Get the latest Stock Analysis on HCA - FREE

TheStreet Quant Ratings rates HCA Holdings as a buy. The company's strengths can be seen in multiple areas, such as its solid stock price performance, impressive record of earnings per share growth, compelling growth in net income, revenue growth and good cash flow from operations. We feel its strengths outweigh the fact that the company shows low profit margins. Get the full HCA Holdings Ratings Report from TheStreet Quant Ratings now.

EXCLUSIVE OFFER: See inside Jim Cramer's multi-million dollar charitable trust portfolio to see the stocks he thinks could be potential winners. Click here to see his holdings for 14-days FREE.