RTW INVESTMENTS, LP Diversified Active

CIK: 0001493215 · Show all filings

Period: Q1 2015 (← Previous) (Next →)

Filing Date: May 21, 2015

Total Value ($000): $221,515 (100.0% shares, 0.0% debt)

Holdings (24)

ALNY Alnylam Pharmaceuticals Inc 16.8%

Value ($000) $37,110 Shares 355,395 Est. Cost $93.01 Unrealized +8.9%

— Dyax Corp 12.0%

Value ($000) $26,558 Shares 1,585,098 Est. Cost $14.06 Unrealized —

— Dicerna Pharmaceuticals Inc 10.8%

Value ($000) $23,813 Shares 990,981 Est. Cost $16.47 Unrealized —

— Kite Pharma Inc 9.8%

Value ($000) $21,666 Shares 375,623 Est. Cost $57.68 Unrealized —

BCRX BioCryst Pharmaceuticals Inc 9.2%

Value ($000) $20,420 Shares 2,261,361 Est. Cost $11.05 Unrealized -6.3%

— La Jolla Pharmaceutical Co 8.8%

Value ($000) $19,476 Shares 1,064,247 Est. Cost $18.45 Unrealized —

— Arrowhead Research Corp 7.4%

Value ($000) $16,304 Shares 2,410,000 Est. Cost $7.38 Unrealized —

— Achillion Pharmaceuticals Inc 7.2%

Value ($000) $15,999 Shares 1,622,633 Est. Cost $12.25 Unrealized —

— bluebird bio Inc 5.5%

Value ($000) $12,077 Shares 100,000 Est. Cost $120.77 Unrealized —

— Targacept Inc 3.6%

Value ($000) $7,917 Shares 2,665,643 Est. Cost $2.63 Unrealized —

— ZS Pharma Inc 1.4%

Value ($000) $3,001 Shares 71,315 Est. Cost $41.57 Unrealized —

— Assembly Biosciences Inc 1.2%

Value ($000) $2,701 Shares 204,000 Est. Cost $7.86 Unrealized —

— Presbia Plc 1.2%

Value ($000) $2,587 Shares 350,000 Est. Cost $7.39 Unrealized —

— Avalanche Biotechnologies In 0.9%

Value ($000) $2,079 Shares 51,300 Est. Cost $53.66 Unrealized —

— Repros Therapeutics Inc 0.9%

Value ($000) $1,970 Shares 229,364 Est. Cost $9.97 Unrealized —

— Coronado Biosciences Inc 0.9%

Value ($000) $1,925 Shares 500,000 Est. Cost $3.85 Unrealized —

— CytRx Corp 0.9%

Value ($000) $1,900 Shares 563,814 Est. Cost $2.74 Unrealized —

— Lipocine Inc 0.7%

Value ($000) $1,444 Shares 209,333 Est. Cost $5.26 Unrealized —

— Taro Pharmaceutical Industries Ltd 0.6%

Value ($000) $1,230 Shares 8,721 Est. Cost $148.19 Unrealized —

— Relypsa Inc 0.5%

Value ($000) $1,150 Shares 31,872 Est. Cost $30.80 Unrealized —

— Lpath Inc 0.1%

Value ($000) $148 Shares 60,000 Est. Cost $2.82 Unrealized —

SHAK Shake Shack Inc 0.0%

Value ($000) $25 Shares 500 Est. Cost $44.88 Unrealized 0.0%

— Tenax Therapeutics Inc 0.0%

Value ($000) $8 Shares 2,400 Est. Cost $3.33 Unrealized —

BRK/B Berkshire Hathaway Inc 0.0%

Value ($000) $7 Shares 50 Est. Cost $147.14 Unrealized 0.0%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
ALNY	Alnylam Pharmaceuticals Inc	355,395	$37,110	16.8%	$93.01	+8.9%	COM	02043Q107
—	Dyax Corp	1,585,098	$26,558	12.0%	$14.06	—	COM	26746E103
—	Dicerna Pharmaceuticals Inc	990,981	$23,813	10.8%	$16.47	—	COM	253031108
—	Kite Pharma Inc	375,623	$21,666	9.8%	$57.68	—	COM	49803L109
BCRX	BioCryst Pharmaceuticals Inc	2,261,361	$20,420	9.2%	$11.05	-6.3%	COM	09058V103
—	La Jolla Pharmaceutical Co	1,064,247	$19,476	8.8%	$18.45	—	COM PAR $.0001 2	503459604
—	Arrowhead Research Corp	2,410,000	$16,304	7.4%	$7.38	—	COM NEW	042797209
—	Achillion Pharmaceuticals Inc	1,622,633	$15,999	7.2%	$12.25	—	COM	00448Q201
—	bluebird bio Inc	100,000	$12,077	5.5%	$120.77	—	COM	09609G100
—	Targacept Inc	2,665,643	$7,917	3.6%	$2.63	—	COM	87611R306
—	ZS Pharma Inc	71,315	$3,001	1.4%	$41.57	—	COM	98979G105
—	Assembly Biosciences Inc	204,000	$2,701	1.2%	$7.86	—	COM	045396108
—	Presbia Plc	350,000	$2,587	1.2%	$7.39	—	COM	G7234P100
—	Avalanche Biotechnologies In	51,300	$2,079	0.9%	$53.66	—	COM	05337G107
—	Repros Therapeutics Inc	229,364	$1,970	0.9%	$9.97	—	COM NEW	76028H209
—	Coronado Biosciences Inc	500,000	$1,925	0.9%	$3.85	—	COM	21976U109
—	CytRx Corp	563,814	$1,900	0.9%	$2.74	—	COM PAR $.001	232828509
—	Lipocine Inc	209,333	$1,444	0.7%	$5.26	—	COM	53630X104
—	Taro Pharmaceutical Industries Ltd	8,721	$1,230	0.6%	$148.19	—	SHS	M8737E108
—	Relypsa Inc	31,872	$1,150	0.5%	$30.80	—	COM	759531106
—	Lpath Inc	60,000	$148	0.1%	$2.82	—	COM NEW	548910306
SHAK	Shake Shack Inc	500	$25	0.0%	$44.88	0.0%	COM	819047101
—	Tenax Therapeutics Inc	2,400	$8	0.0%	$3.33	—	COM	88032L100
BRK/B	Berkshire Hathaway Inc	50	$7	0.0%	$147.14	0.0%	COM	084670702