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Institutional Investment Manager
Tekla Capital Management LLC
Tekla Capital Management LLC (CIK: 0001300336) incorporated in Delaware, located at 100 Federal Street, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 116 holdings with a total value of $2,523,695,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 CELGENE CORP 1,994,834 229,964,000 9.11%
2 GILEAD SCIENCES INC 2,279,731 223,710,000 8.86%
3 BIOGEN INC 339,483 143,343,000 5.68%
4 ALLERGAN PLC 361,686 107,645,000 4.27%
5 ALEXION PHARMACEUTIC 502,305 87,049,000 3.45%
6 INCYTE 936,461 85,836,000 3.40%
7 REGENERON PHARMACEUTICALS 187,166 84,502,000 3.35%
8 BIOMARIN 534,977 66,669,000 2.64%
9 ABBVIE INC 1,110,614 65,015,000 2.58%
10 TEVA PHARMACEUTICAL INDS LTD 997,594 62,150,000 2.46%
11 MYLAN N V 1,010,105 59,950,000 2.38%
12 PFIZER INC 1,638,241 56,994,000 2.26%
13 AMGEN INC 351,779 56,232,000 2.23%
14 VERTEX PHARMACEUT 464,244 54,767,000 2.17%
15 JOHNSON & JOHNSON 434,612 43,722,000 1.73%
16 GILEAD SCIENCES INC 430,100 42,206,000 1.67% Call
17 AKORN INC 849,482 40,359,000 1.60%
18 ALKERMES PLC SHS 588,470 35,879,000 1.42%
19 AETNA INC NEW 331,931 35,361,000 1.40%
20 BRISTOL MYERS SQUIBB CO 535,240 34,523,000 1.37%
21 CATAMARAN CORP COM 433,600 25,817,000 1.02%
22 ILLUMINA INC 133,241 24,735,000 0.98%
23 MOLINA HEALTHCARE INC 347,901 23,410,000 0.93%
24 ACORDA THERAPEUTICS 680,862 22,659,000 0.90%
25 ENDO INTL 251,773 22,584,000 0.89%
26 BAXTER INTL INC 319,600 21,893,000 0.87%
27 PERRIGO CO PLC 130,652 21,629,000 0.86%
28 VENTAS INC 292,782 21,379,000 0.85%
29 ALLSCRIPTS HEALTHCARE 1,778,200 21,267,000 0.84%
30 JAZZ PHARMACEUTICALS PLC SHS USD 120,741 20,863,000 0.83%
31 Receptos Inc 124,800 20,578,000 0.82%
32 NEUROCRINE BIOSCIE COM USD0.001 501,150 19,901,000 0.79%
33 ISHARES TR 57,670 19,806,000 0.78%
34 SYNAGEVA BIOPHARMA CORP 198,689 19,378,000 0.77%
35 THERMO FISHER SCIENTIFIC INC 141,695 19,035,000 0.75%
36 PHYSICIANS RLTY TR 1,050,902 18,506,000 0.73%
37 MEDICAL PPTYS TRUST INC 1,153,574 17,004,000 0.67%
38 OMEGA HEALTHCARE INVS INC 413,116 16,760,000 0.66%
39 IMPAX LABORATORIES INC 344,683 16,155,000 0.64%
40 CORSICANTO LTD 14,700,000 15,656,000 0.62% PRN
41 MCKESSON CORP 67,862 15,350,000 0.61%
42 SABRA HEALTH CARE REIT INC 456,190 15,123,000 0.60%
43 KARYOPHARM THERAPEUTICS INC COM 476,966 14,600,000 0.58%
44 ALERE INC 297,901 14,567,000 0.58%
45 ALNYLAM PHARMACEUTICALS INC 130,195 13,595,000 0.54%
46 Welltower Inc 200,000 13,432,000 0.53%
47 ALEXION PHARMACEUTIC 77,200 13,379,000 0.53% Call
48 HERON THERAPEUTICS INC 873,940 12,716,000 0.50%
49 VERASTEM INC COM 1,249,827 12,711,000 0.50%
50 IRONWOOD PHARMACEUTICALS INC COM CL A 768,050 12,289,000 0.49%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001104659-15-034890, filed 2015.05.06).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.