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 or Stephanie Link.

Yesterday, Oct. 30, 2014, 42 U.S. common stocks issued filings of shares being bought or sold by insiders. The transactions ranged in value from $57.29 to $161,511,350.00.

Highlighted Stocks Traded by Insiders:

Mellanox Technologies (MLNX) - FREE Research Report

Sultzbaugh Marc, who is Sr. VP World Wide Sales at Mellanox Technologies, sold 1,100 shares at $45.00 on Oct. 30, 2014. Following this transaction, the Sr. VP World Wide Sales owned 66,716 shares meaning that the stake was reduced by 1.62% with the 1,100-share transaction.

The shares most recently traded at $44.05, down $0.95, or 2.16% since the insider transaction. Historical insider transactions for Mellanox Technologies go as follows:

  • 4-Week # shares bought: 57,739
  • 4-Week # shares sold: 900
  • 12-Week # shares bought: 57,739
  • 12-Week # shares sold: 18,374
  • 24-Week # shares bought: 57,739
  • 24-Week # shares sold: 20,407

The average volume for Mellanox Technologies has been 704,600 shares per day over the past 30 days. Mellanox Technologies has a market cap of $1.9 billion and is part of the technology sector and electronics industry. Shares are up 8.66% year-to-date as of the close of trading on Thursday.

Mellanox Technologies, Ltd., a fabless semiconductor company, designs, manufactures, and sells interconnect products and solutions. Currently, there are 8 analysts who rate Mellanox Technologies a buy, no analysts rate it a sell, and 4 rate it a hold.

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

TheStreet Quant Ratings rates Mellanox Technologies as a hold. The company's strengths can be seen in multiple areas, such as its increase in net income, revenue growth and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we find that the company's return on equity has been disappointing. Get the full Mellanox Technologies Ratings Report from TheStreet Quant Ratings now.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

MKS Instruments (MKSI) - FREE Research Report

Bagshaw Seth H, who is Vice President, CFO, Treasurer at MKS Instruments, sold 4,000 shares at $36.00 on Oct. 30, 2014. Following this transaction, the Vice President, CFO, Treasurer owned 17,301 shares meaning that the stake was reduced by 18.78% with the 4,000-share transaction.

The shares most recently traded at $36.78, up $0.78, or 2.11% since the insider transaction. Historical insider transactions for MKS Instruments go as follows:

  • 4-Week # shares bought: 1,161
  • 4-Week # shares sold: 7,000
  • 12-Week # shares bought: 1,161
  • 12-Week # shares sold: 19,500
  • 24-Week # shares bought: 1,161
  • 24-Week # shares sold: 48,046

The average volume for MKS Instruments has been 283,100 shares per day over the past 30 days. MKS Instruments has a market cap of $1.9 billion and is part of the technology sector and electronics industry. Shares are up 19.92% year-to-date as of the close of trading on Thursday.

MKS Instruments, Inc. operates as a provider of instruments, subsystems, and process control solutions that measure, control, power, monitor, and analyze critical parameters of manufacturing processes in the United States and internationally. The stock currently has a dividend yield of 1.85%. The company has a P/E ratio of 18.8. Currently, there are 4 analysts who rate MKS Instruments a buy, no analysts rate it a sell, and none rate it a hold.

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

TheStreet Quant Ratings rates MKS Instruments as a buy. The company's strengths can be seen in multiple areas, such as its compelling growth in net income, revenue growth, largely solid financial position with reasonable debt levels by most measures, solid stock price performance and reasonable valuation levels. Although the company may harbor some minor weaknesses, we feel they are unlikely to have a significant impact on results. Get the full MKS Instruments Ratings Report from TheStreet Quant Ratings now.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Cliffs Natural Resources (CLF) - FREE Research Report

Baldwin John T, who is Director at Cliffs Natural Resources, bought 9,800 shares at $10.18 on Oct. 30, 2014. Following this transaction, the Director owned 16,869 shares meaning that the stake was boosted by 138.63% with the 9,800-share transaction.

The shares most recently traded at $10.62, up $0.44, or 4.12% since the insider transaction. Historical insider transactions for Cliffs Natural Resources go as follows:

  • 4-Week # shares bought: 3,000
  • 4-Week # shares sold: 15,000
  • 12-Week # shares bought: 16,246
  • 12-Week # shares sold: 15,000
  • 24-Week # shares bought: 16,246
  • 24-Week # shares sold: 15,000

The average volume for Cliffs Natural Resources has been 10.6 million shares per day over the past 30 days. Cliffs Natural Resources has a market cap of $1.6 billion and is part of the basic materials sector and metals & mining industry. Shares are down 59.94% year-to-date as of the close of trading on Thursday.

Cliffs Natural Resources Inc., a mining and natural resources company, produces iron ore and metallurgical coal. The stock currently has a dividend yield of 5.87%. The company has a P/E ratio of 17.3. Currently, there are 3 analysts who rate Cliffs Natural Resources a buy, 4 analysts rate it a sell, and 6 rate it a hold.

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

TheStreet Quant Ratings rates Cliffs Natural Resources as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, generally high debt management risk, disappointing return on equity, weak operating cash flow and generally disappointing historical performance in the stock itself. Get the full Cliffs Natural Resources Ratings Report from TheStreet Quant Ratings now.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

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