10.3% of XBI Holdings Seeing Recent Insider Buys

A look at the weighted underlying holdings of the SPDR S&P Biotech ETF (XBI) shows an impressive 10.3% of holdings on a weighted basis have experienced insider buying within the past six months.

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Merrimack Pharmaceuticals Inc. ( MACK), which makes up 1.19% of the SPDR S&P Biotech ETF (XBI), has seen 6 directors and officers purchase shares in the past six months, according to the recent Form 4 data. The ETF holds a total of $13,397,309 worth of MACK, making it the #51 largest holding. The table below details the recent insider buying activity observed at MACK:

MACK — last trade: $7.04 — Recent Insider Buys:

Purchased Insider Title Shares Price/Share Value
05/05/2014 Michael E. Porter Director 15,000 $6.41 $96,150.00
05/05/2014 Gary L. Crocker Director 10,000 $6.69 $66,900.00
05/05/2014 Robert J. Mulroy President and CEO 5,000 $6.31 $31,550.00
05/06/2014 Gary L. Crocker Director 17,500 $6.89 $120,575.00
05/05/2014 Michael E. Porter Director 5,000 $6.12 $30,600.00
05/07/2014 Gary L. Crocker Director 4,400 $6.77 $29,788.00
05/07/2014 Sarah E. Nash Director 15,000 $6.79 $101,850.00
05/08/2014 Michael E. Porter Director 10,000 $6.59 $65,900.00
05/13/2014 Anthony J. Sinskey Director 5,000 $6.74 $33,700.00
05/16/2014 Michael E. Porter Director 15,000 $6.49 $97,400.00
05/19/2014 Gary L. Crocker Director 9,400 $6.68 $62,802.00
05/19/2014 James H. Quigley Director 5,000 $6.58 $32,900.00
05/20/2014 Gary L. Crocker Director 4,000 $6.69 $26,760.00
06/23/2014 Michael E. Porter Director 32,390 $6.84 $221,547.60
06/23/2014 Gary L. Crocker Director 36,000 $6.84 $246,240.00

And Synergy Pharmaceuticals Inc ( SGYP), the #58 largest holding among components of the SPDR S&P Biotech ETF (XBI), shows 4 directors and officers as recently filing Form 4's indicating purchases. The ETF holds $12,889,101 worth of SGYP, which represents approximately 1.14% of the ETF's total assets at last check. The recent insider buying activity observed at SGYP is detailed in the table below:

SGYP — last trade: $3.58 — Recent Insider Buys:

Purchased Insider Title Shares Price/Share Value
05/23/2014 Bernard Denoyer Senior Vice President, Finance 2,500 $3.89 $9,725.00
05/23/2014 Kunwar Shailubhai Chief Scientific Officer 3,000 $3.89 $11,670.00
05/27/2014 Gary S. Jacob Chief Executive Officer 4,000 $4.18 $16,720.00
06/03/2014 John P. Brancaccio Director 3,500 $4.12 $14,420.00

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