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29 April 2026
13F HOLDINGS REPORT

Tekla Capital Management LLC

Quarter ended Q1 2023 · Filed February 10, 2023 · Accession 0001104659-23-018131

Total Value
$2.65B
Positions
172
Other Managers
0
Confidential Omitted
No
View on SEC.gov

Holdings (172)

#IssuerTicker / CUSIPSharesValue% of Filing
1Unitedhealth Group Inc.UNH270,546$143.4M5.42%
2Amgen Inc.AMGN508,676$133.6M5.05%
3Gilead Sciences, Inc.GILD1,510,440$129.7M4.90%
4Johnson & JohnsonJNJ639,679$113.0M4.27%
5Eli Lilly and CompanyLLY288,917$105.7M3.99%
6Vertex Pharmaceuticals Inc.VRTX330,343$95.4M3.60%
7Regeneron Pharmaceuticals, Inc.REGN120,862$87.2M3.29%
8AbbVie Inc.ABBV478,342$77.3M2.92%
9Abbott LaboratoriesABLZF693,051$76.1M2.87%
10Pfizer Inc.PFE1,457,170$74.7M2.82%
11AstraZeneca PLCAZN1,022,255$69.3M2.62%
12Illumina, Inc.ILMN319,958$64.7M2.44%
13Merck & Co., Inc.MRK552,122$61.3M2.31%
14Cigna Corp.125523100182,631$60.5M2.29%
15Biogen Inc.BIIB195,430$54.1M2.04%
16Thermo Fisher Scientific Inc.TMO93,705$51.6M1.95%
17Bristol-Myers Squibb CompanyCELG-RI687,529$49.5M1.87%
18Moderna, Inc.MRNA264,927$47.6M1.80%
19Horizon Therapeutics plcG46188101415,053$47.2M1.78%
20Stryker Corp.SYK164,128$40.1M1.52%
21Humana Inc.HUM77,713$39.8M1.50%
22Boston Scientific Corp.BSX757,015$35.0M1.32%
23Alnylam Pharmaceuticals, Inc.ALNY143,214$34.0M1.29%
24Zimmer Biomet Holdings, Inc.ZBH258,868$33.0M1.25%
25United Therapeutics Corp.UTHR115,077$32.0M1.21%
26argenx SEARGX84,021$31.8M1.20%
27Intuitive Surgical, Inc.ISRG112,680$29.9M1.13%
28Jazz Pharmaceuticals plcJAZZ182,782$29.1M1.10%
29Danaher Corp.235851102105,690$28.1M1.06%
30IDEXX Laboratories, Inc.45168D10468,065$27.8M1.05%
31Medtronic plcMDT326,172$25.4M0.96%
32HCA Healthcare, Inc.HCA105,003$25.2M0.95%
33McKesson Corp.MCK66,455$24.9M0.94%
34Dexcom, Inc.DXCM218,015$24.7M0.93%
35Molina Healthcare, Inc.MOH73,615$24.3M0.92%
36BioMarin Pharmaceutical Inc.BMRN230,790$23.9M0.90%
37Zoetis Inc.ZTS136,914$20.1M0.76%
38Sarepta Therapeutics, Inc.SRPT140,959$18.3M0.69%
39Novo Nordisk A/SNONOF130,523$17.7M0.67%
40Lantheus Holdings, Inc.LNTH342,872$17.5M0.66%
41Charles River Laboratories International, Inc.15986410772,675$15.8M0.60%
42BioNTech SEBNTX103,858$15.6M0.59%
43Ascendis Pharma A/SASND123,791$15.1M0.57%
44uniQure N.V.QURE652,446$14.8M0.56%
45Seagen Inc.SE112,214$14.4M0.54%
46Neurocrine Biosciences, Inc.NBIX112,908$13.5M0.51%
47IQVIA Holdings Inc.IQV63,117$12.9M0.49%
48Guardant Health, Inc.GH472,184$12.8M0.49%
49Edwards Lifesciences Corp.EW171,388$12.8M0.48%
50ResMed Inc.RSMDF60,699$12.6M0.48%
51Novartis AGNVSEF136,225$12.4M0.47%
52SPDR S&P Biotech ETF78464A870147,677$12.3M0.46%
53Acadia Healthcare Company, Inc.ACHC141,189$11.6M0.44%
54Rallybio CorporationRLYB1,727,067$11.3M0.43%
55Align Technology, Inc.ALGN50,824$10.7M0.40%
56Karuna Therapeutics, Inc.48576A10053,452$10.5M0.40%
57Laboratory Corporation of America Holdings50540R40944,142$10.4M0.39%
58Avantor, Inc.AVTR459,488$9.7M0.37%
59Intra-Cellular Therapies, Inc.46116X101172,371$9.1M0.34%
60Travere Therapeutics, Inc.TVTX418,520$8.8M0.33%
61CVS Health Corp.CVS93,621$8.7M0.33%
62Omega Healthcare Investors, Inc.681936100306,433$8.6M0.32%
63Alkermes plcALKS309,613$8.1M0.31%
64BioCryst Pharmaceuticals, Inc.BCRX672,705$7.7M0.29%
65Denali Therapeutics, Inc.DNLI272,520$7.6M0.29%
66Allscripts Healthcare Solutions, Inc.01988P108428,580$7.6M0.29%
67Elevance Health, Inc.ELV14,644$7.5M0.28%
68HealthEquity, Inc.HQY110,214$6.8M0.26%
69LTC Properties, Inc.502175102182,293$6.5M0.24%
70Agilent Technologies, Inc.A43,191$6.5M0.24%
71VectivBio Holding AGH9060V101737,704$6.4M0.24%
72Sabra Health Care REIT, Inc.SBRA510,660$6.3M0.24%
73SanofiSNYNF123,454$6.0M0.23%
74Catalent, Inc.148806102125,947$5.7M0.21%
75Cerevel Therapeutics Holdings, Inc.15678U128176,483$5.6M0.21%
76Intellia Therapeutics, Inc.NTLA154,269$5.4M0.20%
77Xencor, Inc.XNCR200,328$5.2M0.20%
78Smith & Nephew plcSNNUF181,710$4.9M0.18%
79BeiGene, Ltd.BEIGF20,952$4.6M0.17%
80Medical Properties Trust, Inc.58463J304411,743$4.6M0.17%
81Addus HomeCare Corp.ADUS42,380$4.2M0.16%
82Prometheus Biosciences, Inc.74349U10838,237$4.2M0.16%
83Teva Pharmaceutical Industries Ltd.881624209459,651$4.2M0.16%
84Arrowhead Pharmaceuticals, Inc.ARWR100,422$4.1M0.15%
85Healthpeak Properties, Inc.DOC150,392$3.8M0.14%
86Caribou Biosciences, Inc.CRBU567,147$3.6M0.13%
87Kura Oncology, Inc.KURA283,281$3.5M0.13%
88Cytokinetics, Inc.CYTK75,139$3.4M0.13%
89Apellis Pharmaceuticals, Inc.APLS66,426$3.4M0.13%
90Amerisourcebergen Corp.COR20,417$3.4M0.13%
91Healthcare Realty Trust Inc.42226K105174,686$3.4M0.13%
92Ionis Pharmaceuticals, Inc.IONS87,840$3.3M0.13%
93Xenon Pharmaceuticals Inc.XENE83,714$3.3M0.12%
94Adaptive Biotechnologies Corp.ADTI422,281$3.2M0.12%
95Ishares Biothechnology ETF46428755624,569$3.2M0.12%
96MoonLake Immunotherapeutics AGMLTX300,000$3.1M0.12%
97Ultragenyx Pharmaceutical Inc.RARE67,065$3.1M0.12%
98STERIS plcSTE16,669$3.1M0.12%
99Ventas, Inc.VTR66,681$3.0M0.11%
100Syndax Pharmaceuticals, Inc.SNDX117,717$3.0M0.11%
101Mirati Therapeutics, Inc.60468T10565,490$3.0M0.11%
102Blueprint Medicines Corp.09627Y10967,710$3.0M0.11%
103Welltower Inc.WELL41,484$2.7M0.10%
104Bicycle Therapeutics PLCBCYC88,676$2.6M0.10%
105Physicians Realty Trust71943U104168,741$2.4M0.09%
106IDEAYA Biosciences, Inc.IDYA133,185$2.4M0.09%
107Cardiovascular Systems, Inc.141619106174,859$2.4M0.09%
108G1 Therapeutics, Inc.3621LQ109423,869$2.3M0.09%
109CRISPR Therapeutics AGCRSP55,080$2.2M0.08%
110R1 RCM Inc.77634L105202,351$2.2M0.08%
111Arcutis Biotherapeutics, Inc.ARQT148,874$2.2M0.08%
112Medpace Holdings, Inc.MEDP9,435$2.0M0.08%
113Natera, Inc.NTRA49,272$2.0M0.07%
114Option Care Health, Inc.OPCH64,975$2.0M0.07%
115Icon plcICLR9,334$1.8M0.07%
116Assertio Holdings, Inc.ASRT410,575$1.8M0.07%
117Perrigo Company plcPRGO51,224$1.7M0.07%
118Edgewise Therapeutics, Inc.EWTX195,025$1.7M0.07%
119Global Medical REIT Inc.37954A204174,897$1.7M0.06%
120Koninklijke Philips N.V.RYLPF109,860$1.6M0.06%
121Takeda Pharmaceutical Company Ltd.TKPHF105,073$1.6M0.06%
122Ardelyx, Inc.ARDX539,408$1.5M0.06%
123Arvinas, Inc.ARVN42,998$1.5M0.06%
124GSK plc ADRGLAXF41,852$1.5M0.06%
125Merus N.V.N5749R10092,325$1.4M0.05%
126Galera Therapeutics, Inc.GRTX898,374$1.3M0.05%
127Protagonist Therapeutics, Inc.PTGX122,271$1.3M0.05%
128Zai Lab Ltd.ZLAB43,300$1.3M0.05%
129Stevanato Group Societa' Per AzioniSTVN71,190$1.3M0.05%
130Morphic Holding, Inc.61775R10544,625$1.2M0.05%
131Sutro Biopharma, Inc.STRO147,531$1.2M0.05%
132Mereo BioPharma Group plcMREO1,551,082$1.2M0.04%
133ACADIA Pharmaceuticals Inc.ACAD72,225$1.1M0.04%
134Scholar Rock Holding Corp.SRRK108,833$984,9390.04%
135Pyxis Oncology, Inc.PYXS708,303$949,1260.04%
136Crinetics Pharmaceuticals, Inc.CRNX45,861$839,2560.03%
137ALX Oncology Holdings Inc.ALXO66,211$746,1980.03%
138Affimed N.V.N01045108586,038$726,6870.03%
139Pliant Therapeutics, Inc.PLRX35,233$681,0540.03%
140I-MabNBP162,580$679,5840.03%
141Novavax, Inc.NVAX63,800$655,8640.02%
142Intercept Pharmaceuticals, Inc.INTR52,067$644,0690.02%
143Beam Therapeutics Inc.BEAM15,817$618,6030.02%
144Universal Health Realty Income Trust91359E10511,258$537,3440.02%
145Community Healthcare Trust Inc.CHCT14,900$533,4200.02%
146National Health Investors, Inc.63633D10410,038$524,1840.02%
1471Life Healthcare, Inc.68269G10731,266$522,4550.02%
148Theseus Pharmaceuticals, Inc.88369M101100,000$498,0000.02%
149Biohaven Ltd.BHVN35,087$487,0080.02%
150Repare Therapeutics Inc.76027310229,150$428,7970.02%
151Fulcrum Therapeutics, Inc.FULC58,537$426,1490.02%
152Community Health Systems, Inc.20366810888,335$381,6070.01%
153Adicet Bio, Inc.ACET40,329$360,5410.01%
154TScan Therapeutics, Inc.TCRX200,000$326,0000.01%
155Codexis IncCDXS69,125$322,1230.01%
156MorphoSys AG61776020281,867$293,0840.01%
157Mallinckrodt plcG5890A10235,048$271,6220.01%
158Precision BioSciences, Inc.DTIL224,534$267,1950.01%
159Vaxcyte, Inc.PCVX5,000$239,7500.01%
160Black Diamond Therapeutics, Inc.BDTX131,990$237,5820.01%
161Diversified Healthcare TrustDHCNL357,720$231,3730.01%
162Harpoon Therapeutics, Inc.41358P106259,910$188,6170.01%
163Praxis Precision Medicines, Inc.PRAX75,000$178,5000.01%
164Nkarta, Inc.NKTX28,988$173,6380.01%
165Fusion Pharmaceuticals Inc.36118A10043,394$136,6910.01%
166ARCA biopharma, Inc.00211Y50632,461$76,6080.00%
167Spectrum Pharmaceuticals, Inc.84763A108114,670$42,2560.00%
168VYNE Therapeutics Inc.VYNE135,395$20,3090.00%
169Corbus Pharmaceuticals Holdings, Inc.CRBP154,310$17,0510.00%
170AlerisLife Inc.33832D20524,237$13,3300.00%
171NexGel, Inc.NXGLW4,243$5,3040.00%
172Bellicum Pharmaceuticals, Inc.0794814046,000$4,3200.00%