Deerfield Special Situations International Master Fund, L.P. insider trades: Cas Medical Systems (CASM) stock buys and sales

10% Owner, Cas Medical Systems Last trade Jan 1, 2015 9 Form 4 filings

Sold, last 12 months

0 sales

Bought, last 12 months

0 buys

Open-market trades

since 2014

Companies

last trade 2015

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Deerfield Special Situations International Master Fund, L.P. reports to the SEC

CASMCas Medical Systems

10% Owner · last filing Jan 5, 2015

-$2.4M

+$2.4M

DRNADicerna Pharmaceuticals

10% Owner · last filing Nov 10, 2014

-$3.2M

+$15.0M

PRTOProteon Therapeutics

10% Owner · last filing Oct 27, 2014

+$6.9M

LOXOLoxo Oncology

10% Owner · last filing Aug 6, 2014

+$14.2M

AAVLAvalanche Biotechnologies

10% Owner · last filing Aug 5, 2014

+$31.9M

TRIVTriVascular Technologies

10% Owner · last filing Apr 22, 2014

+$12.8M

and 1 more company

Open-market buys and sales

31 trades reported on SEC Form 4, newest first

Date	Stock	Type	Shares	Price	Value	Holding	Reported
Jan 1, 2015	CASMCas Medical Systems	↓ Sell	1,443,200	$1.65	$2.4M	Through Deerfield Special Situations Int	Jan 5, 2015 (4d)
Jan 1, 2015	CASMCas Medical Systems	↑ Buy	1,443,200	$1.65	$2.4M	Through Deerfield Special Situations, L.	Jan 5, 2015 (4d)
Nov 7, 2014	DRNADicerna Pharmaceuticals	↓ Sell	214,164	$9.05	$1.9M	Through Deerfield Special Situations Int	Nov 10, 2014 (3d)
Oct 27, 2014	PRTOProteon Therapeutics	↑ Buy	469,495	$10.00	$4.7M	Through Deerfield Private Design Fund II	Oct 27, 2014 (0d)
Oct 27, 2014	PRTOProteon Therapeutics	↑ Buy	121,332	$10.00	$1.2M	Through Deerfield Special Situations Fun	Oct 27, 2014 (0d)
Oct 27, 2014	PRTOProteon Therapeutics	↑ Buy	100,886	$10.00	$1.0M	Through Deerfield Special Situations Int	Oct 27, 2014 (0d)
Oct 15, 2014	DRNADicerna Pharmaceuticals	↓ Sell	58,907	$10.20	$601K	Through Deerfield Special Situations Int	Oct 15, 2014 (0d)
Oct 14, 2014	DRNADicerna Pharmaceuticals	↓ Sell	26,565	$11.53	$306K	Through Deerfield Private Design Interna	Oct 15, 2014 (1d)
Oct 14, 2014	DRNADicerna Pharmaceuticals	↓ Sell	23,182	$11.53	$267K	Through Deerfield Private Design Fund II	Oct 15, 2014 (1d)
Oct 14, 2014	DRNADicerna Pharmaceuticals	↓ Sell	9,124	$11.53	$105K	Through Deerfield Special Situations Fun	Oct 15, 2014 (1d)
Aug 6, 2014	LOXOLoxo Oncology	↑ Buy	307,600	$13.00	$4.0M	Through Deerfield Special Situations Fun	Aug 6, 2014 (0d)
Aug 6, 2014	LOXOLoxo Oncology	↑ Buy	296,125	$13.01	$3.9M	Through Deerfield International Master	Aug 6, 2014 (0d)
Aug 6, 2014	LOXOLoxo Oncology	↑ Buy	246,631	$13.00	$3.2M	Through Deerfield Special Situations Int	Aug 6, 2014 (0d)
Aug 6, 2014	LOXOLoxo Oncology	↑ Buy	239,300	$13.01	$3.1M	Through Deerfield Partners, L.P.	Aug 6, 2014 (0d)
Aug 5, 2014	AAVLAvalanche Biotechnologies	↑ Buy	627,267	$25.14	$15.8M	Through Deerfield International Master F	Aug 5, 2014 (0d)
Aug 5, 2014	AAVLAvalanche Biotechnologies	↑ Buy	507,200	$25.14	$12.8M	Through Deerfield Partners, L.P.	Aug 5, 2014 (0d)
Aug 5, 2014	AAVLAvalanche Biotechnologies	↑ Buy	123,077	$17.00	$2.1M	Through Deerfield Private Design Fund II	Aug 5, 2014 (0d)
Aug 5, 2014	AAVLAvalanche Biotechnologies	↑ Buy	42,700	$17.00	$726K	Through Deerfield Special Situations Fun	Aug 5, 2014 (0d)
Aug 5, 2014	AAVLAvalanche Biotechnologies	↑ Buy	34,223	$17.00	$582K	Through Deerfield Special Situations Int	Aug 5, 2014 (0d)
Apr 22, 2014	TRIVTriVascular Technologies	↑ Buy	340,425	$12.00	$4.1M	Through Deerfield Private Design Interna	Apr 22, 2014 (0d)
Apr 22, 2014	TRIVTriVascular Technologies	↑ Buy	297,075	$12.00	$3.6M	Through Deerfield Private Design Fund II	Apr 22, 2014 (0d)
Apr 22, 2014	TRIVTriVascular Technologies	↑ Buy	237,690	$12.02	$2.9M	Through Deerfield Special Situations Fun	Apr 22, 2014 (0d)
Apr 22, 2014	TRIVTriVascular Technologies	↑ Buy	189,810	$12.02	$2.3M	Through Deerfield Special Situations Int	Apr 22, 2014 (0d)
Feb 10, 2014	ASPXAuspex Pharmaceuticals	↑ Buy	280,350	$12.00	$3.4M	Through Deerfield Private Design Interna	Feb 11, 2014 (1d)
Feb 10, 2014	ASPXAuspex Pharmaceuticals	↑ Buy	244,650	$12.00	$2.9M	Through Deerfield Private Design Fund II	Feb 11, 2014 (1d)
Feb 10, 2014	ASPXAuspex Pharmaceuticals	↑ Buy	96,600	$12.00	$1.2M	Through Deerfield Special Situations Fun	Feb 11, 2014 (1d)
Feb 10, 2014	ASPXAuspex Pharmaceuticals	↑ Buy	78,400	$12.00	$941K	Through Deerfield Special Situations Int	Feb 11, 2014 (1d)
Feb 4, 2014	DRNADicerna Pharmaceuticals	↑ Buy	400,500	$15.00	$6.0M	Through Deerfield Private Design Interna	Feb 4, 2014 (0d)
Feb 4, 2014	DRNADicerna Pharmaceuticals	↑ Buy	349,500	$15.00	$5.2M	Through Deerfield Private Design Fund II	Feb 4, 2014 (0d)
Feb 4, 2014	DRNADicerna Pharmaceuticals	↑ Buy	138,000	$15.00	$2.1M	Through Deerfield Special Situations Fun	Feb 4, 2014 (0d)
Feb 4, 2014	DRNADicerna Pharmaceuticals	↑ Buy	112,000	$15.00	$1.7M	Through Deerfield Special Situations Int	Feb 4, 2014 (0d)

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

About Deerfield Special Situations International Master Fund, L.P.'s insider trades

Deerfield Special Situations International Master Fund, L.P. is a 10% owner of Cas Medical Systems (CASM). Since Feb 4, 2014, it has reported 25 open-market purchases worth $91.6M and 6 sales worth $5.6M on SEC Form 4. There have been no open-market trades in the last 12 months.

Its filings also include conversions (6 filings), other transactions (1 filing). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CASM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.