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Cayman Journal
29 April 2026
13F HOLDINGS REPORT

Tekla Capital Management LLC

Quarter ended Q2 2023 · Filed May 10, 2023 · Accession 0001104659-23-057966

Total Value
$2.63B
Positions
177
Other Managers
0
Confidential Omitted
No
View on SEC.gov

Holdings (177)

#IssuerTicker / CUSIPSharesValue% of Filing
1Amgen Inc.AMGN555,939$134.4M5.12%
2Gilead Sciences, Inc.GILD1,559,884$129.4M4.93%
3Regeneron Pharmaceuticals, Inc.REGN143,053$117.5M4.48%
4Johnson & JohnsonJNJ721,779$111.9M4.26%
5Unitedhealth Group Inc.UNH234,173$110.7M4.21%
6Vertex Pharmaceuticals Inc.VRTX330,343$104.1M3.96%
7Eli Lilly and CompanyLLY288,917$99.2M3.78%
8AbbVie Inc.ABBV511,599$81.5M3.10%
9Illumina, Inc.ILMN348,079$80.9M3.08%
10Pfizer Inc.PFE1,775,076$72.4M2.76%
11AstraZeneca PLCAZN992,664$68.9M2.62%
12Biogen Inc.BIIB240,926$67.0M2.55%
13Abbott LaboratoriesABLZF623,855$63.2M2.41%
14Merck & Co., Inc.MRK552,122$58.7M2.24%
15Thermo Fisher Scientific Inc.TMO93,705$54.0M2.06%
16Elevance Health, Inc.ELV114,070$52.5M2.00%
17Moderna, Inc.MRNA322,217$49.5M1.88%
18The Cigna Group125523100182,631$46.7M1.78%
19Bristol-Myers Squibb CompanyCELG-RI663,796$46.0M1.75%
20Seagen Inc.SE224,663$45.5M1.73%
21Sarepta Therapeutics, Inc.SRPT285,653$39.4M1.50%
22argenx SEARGX88,310$32.9M1.25%
23IDEXX Laboratories, Inc.45168D10458,595$29.3M1.12%
24BioMarin Pharmaceutical Inc.BMRN300,089$29.2M1.11%
25Intuitive Surgical, Inc.ISRG112,680$28.8M1.10%
26Alnylam Pharmaceuticals, Inc.ALNY143,214$28.7M1.09%
27Boston Scientific Corp.BSX565,990$28.3M1.08%
28Medtronic plcMDT344,517$27.8M1.06%
29Danaher Corp.235851102105,690$26.6M1.01%
30Dexcom, Inc.DXCM228,747$26.6M1.01%
31Charles River Laboratories International, Inc.159864107118,083$23.8M0.91%
32McKesson Corp.MCK66,455$23.7M0.90%
33HCA Healthcare, Inc.HCA88,703$23.4M0.89%
34Zoetis Inc.ZTS136,914$22.8M0.87%
35Jazz Pharmaceuticals plcJAZZ147,779$21.6M0.82%
36Stryker Corp.SYK71,578$20.4M0.78%
37Humana Inc.HUM36,794$17.9M0.68%
38Novo Nordisk A/SNONOF111,323$17.7M0.67%
39Molina Healthcare, Inc.MOH61,856$16.5M0.63%
40ResMed Inc.RSMDF73,189$16.0M0.61%
41Edwards Lifesciences Corp.EW171,146$14.2M0.54%
42Exelixis, Inc.EXEL726,639$14.1M0.54%
43United Therapeutics Corp.UTHR61,200$13.7M0.52%
44Acadia Healthcare Company, Inc.ACHC186,487$13.5M0.51%
45Ascendis Pharma A/SASND123,791$13.3M0.51%
46uniQure N.V.QURE652,446$13.1M0.50%
47Physicians Realty Trust71943U104873,655$13.0M0.50%
48BioNTech SEBNTX103,858$12.9M0.49%
49IQVIA Holdings Inc.IQV63,117$12.6M0.48%
50Novartis AGNVSEF136,225$12.5M0.48%
51Neurocrine Biosciences, Inc.NBIX112,908$11.4M0.44%
52SPDR S&P Biotech ETF78464A870147,677$11.3M0.43%
53Guardant Health, Inc.GH472,184$11.1M0.42%
54Oculis Holding AGOCSAW1,690,741$11.0M0.42%
55Rallybio CorporationRLYB1,727,067$9.9M0.38%
56Avantor, Inc.AVTR459,488$9.7M0.37%
57Karuna Therapeutics, Inc.48576A10053,452$9.7M0.37%
58Travere Therapeutics, Inc.TVTX418,520$9.4M0.36%
59Intra-Cellular Therapies, Inc.46116X101172,371$9.3M0.36%
60Laboratory Corporation of America Holdings50540R40940,042$9.2M0.35%
61Apellis Pharmaceuticals, Inc.APLS135,124$8.9M0.34%
62Alkermes plcALKS309,613$8.7M0.33%
63Zimmer Biomet Holdings, Inc.ZBH67,356$8.7M0.33%
64Omega Healthcare Investors, Inc.681936100306,433$8.4M0.32%
65Cytokinetics, Inc.CYTK219,025$7.7M0.29%
66Denali Therapeutics, Inc.DNLI324,829$7.5M0.28%
67CVS Health Corp.CVS93,621$7.0M0.26%
68SanofiSNYNF123,454$6.7M0.26%
69Lantheus Holdings, Inc.LNTH79,495$6.6M0.25%
70LTC Properties, Inc.502175102182,293$6.4M0.24%
71Agilent Technologies, Inc.A43,191$6.0M0.23%
72STERIS plcSTE31,072$5.9M0.23%
73Sabra Health Care REIT, Inc.SBRA510,660$5.9M0.22%
74VectivBio Holding AGH9060V101682,834$5.9M0.22%
75Intellia Therapeutics, Inc.NTLA154,269$5.7M0.22%
76Veradigm, Inc.01988P108428,580$5.6M0.21%
77Prometheus Biosciences, Inc.74349U10850,538$5.4M0.21%
78R1 RCM Inc.77634L105356,851$5.4M0.20%
79West Pharmaceutical Services, Inc.95530610515,036$5.2M0.20%
80Smith & Nephew plcSNNUF181,710$5.1M0.19%
81Amedisys, Inc.02343610868,949$5.1M0.19%
82Addus HomeCare Corp.ADUS42,380$4.5M0.17%
83BeiGene, Ltd.BEIGF20,952$4.5M0.17%
84Cerevel Therapeutics Holdings, Inc.15678U128176,483$4.3M0.16%
85BioCryst Pharmaceuticals, Inc.BCRX504,528$4.2M0.16%
86Teva Pharmaceutical Industries Ltd.881624209459,651$4.1M0.15%
87Adaptive Biotechnologies Corp.ADTI422,281$3.7M0.14%
88Cardiovascular Systems, Inc.141619106174,859$3.5M0.13%
89Kura Oncology, Inc.KURA283,281$3.5M0.13%
90Medical Properties Trust, Inc.58463J304411,743$3.4M0.13%
91Healthcare Realty Trust Inc.42226K105174,686$3.4M0.13%
92Healthpeak Properties, Inc.DOC150,392$3.3M0.13%
93Amerisourcebergen Corp.COR20,417$3.3M0.12%
94Catalent, Inc.14880610249,406$3.2M0.12%
95Ishares Biothechnology ETF46428755624,569$3.2M0.12%
96Marinus Pharmaceuticals, Inc.56854Q200456,780$3.2M0.12%
97Ionis Pharmaceuticals, Inc.IONS87,840$3.1M0.12%
98Blueprint Medicines Corp.09627Y10967,710$3.0M0.12%
99Madrigal Pharmaceuticals, Inc.MDGL12,481$3.0M0.12%
100Caribou Biosciences, Inc.CRBU567,147$3.0M0.11%
101Xenon Pharmaceuticals Inc.XENE83,714$3.0M0.11%
102Welltower Inc.WELL41,484$3.0M0.11%
103Ventas, Inc.VTR66,681$2.9M0.11%
104Pyxis Oncology, Inc.PYXS708,303$2.8M0.11%
105LivaNova plcLIVN63,880$2.8M0.11%
106Natera, Inc.NTRA49,272$2.7M0.10%
107Baxter International, Inc.07181310967,312$2.7M0.10%
108Ultragenyx Pharmaceutical Inc.RARE67,065$2.7M0.10%
109Assertio Holdings, Inc.ASRT410,575$2.6M0.10%
110Ardelyx, Inc.ARDX539,408$2.6M0.10%
111Arrowhead Pharmaceuticals, Inc.ARWR100,422$2.6M0.10%
112Bridgebio Pharma, Inc.BBIO150,921$2.5M0.10%
113CRISPR Therapeutics AGCRSP55,080$2.5M0.09%
114Syndax Pharmaceuticals, Inc.SNDX117,717$2.5M0.09%
115Mirati Therapeutics, Inc.60468T10565,490$2.4M0.09%
116Align Technology, Inc.ALGN6,925$2.3M0.09%
117Galera Therapeutics, Inc.GRTX898,374$2.3M0.09%
118Option Care Health, Inc.OPCH64,975$2.1M0.08%
119Koninklijke Philips N.V.RYLPF109,860$2.0M0.08%
120Icon plcICLR9,334$2.0M0.08%
121Chinook Therapeutics, Inc.16961L10683,500$1.9M0.07%
122Bicycle Therapeutics PLCBCYC88,676$1.9M0.07%
123Perrigo Company plcPRGO51,224$1.8M0.07%
124Immunovant, Inc.IMVT115,400$1.8M0.07%
125Medpace Holdings, Inc.MEDP9,435$1.8M0.07%
126Takeda Pharmaceutical Company Ltd.TKPHF105,073$1.7M0.07%
127Arcutis Biotherapeutics, Inc.ARQT148,874$1.6M0.06%
128Reata Pharmaceuticals, Inc. Class A75615P10317,850$1.6M0.06%
12989bio, Inc.282559103105,898$1.6M0.06%
130Global Medical REIT Inc.37954A204174,897$1.6M0.06%
131GSK plcGLAXF41,852$1.5M0.06%
132Edgewise Therapeutics, Inc.EWTX195,025$1.3M0.05%
133Merus N.V.N5749R10069,025$1.3M0.05%
134Crinetics Pharmaceuticals, Inc.CRNX78,529$1.3M0.05%
135Zai Lab Ltd.ZLAB34,640$1.2M0.04%
136G1 Therapeutics, Inc.3621LQ109423,869$1.1M0.04%
137Mereo BioPharma Group plcMREO1,551,082$1.1M0.04%
138Scholar Rock Holding Corp.SRRK108,833$870,6640.03%
139Intercept Pharmaceuticals, Inc.INTR52,067$699,2600.03%
140Mersana Therapeutics, Inc.59045L106162,383$667,3940.03%
141Theseus Pharmaceuticals, Inc.88369M10175,000$666,0000.03%
142iTeos Therapeutics, Inc.46565G10445,735$622,4530.02%
143Arcus Biosciences, Inc.RCUS32,839$598,9830.02%
144Tactile Systems Technology, Inc.87357P10034,432$565,3730.02%
145I-MabNBP162,580$562,5270.02%
146Community Healthcare Trust Inc.CHCT14,900$545,3400.02%
147Universal Health Realty Income Trust91359E10511,258$541,6220.02%
148National Health Investors, Inc.63633D10410,038$517,7600.02%
149Beam Therapeutics Inc.BEAM15,817$484,3170.02%
150Diversified Healthcare TrustDHCNL357,720$482,9220.02%
151Biohaven Ltd.BHVN35,087$479,2880.02%
152Sutro Biopharma, Inc.STRO98,354$454,3950.02%
153Novavax, Inc.NVAX63,800$442,1340.02%
154Affimed N.V.N01045108586,038$436,9500.02%
155Community Health Systems, Inc.20366810888,335$432,8420.02%
156TScan Therapeutics, Inc.TCRX200,000$420,0000.02%
157MorphoSys AG61776020281,867$323,3750.01%
158Altimmune, Inc.ALT75,000$316,5000.01%
159ALX Oncology Holdings Inc.ALXO66,211$299,2740.01%
160Repare Therapeutics Inc.76027310229,150$286,8360.01%
161Codexis IncCDXS69,125$286,1780.01%
162Mallinckrodt plcG5890A10235,048$255,5030.01%
163Black Diamond Therapeutics, Inc.BDTX131,990$249,4610.01%
164Adicet Bio, Inc.ACET40,329$232,2950.01%
165Harpoon Therapeutics, Inc.41358P106259,910$193,4250.01%
166Vaxcyte, Inc.PCVX5,000$187,4000.01%
167Precision BioSciences, Inc.DTIL224,534$169,2090.01%
168Fulcrum Therapeutics, Inc.FULC58,537$166,8300.01%
169Fusion Pharmaceuticals Inc.36118A10043,394$163,5950.01%
170Nkarta, Inc.NKTX28,988$102,9070.00%
171Spectrum Pharmaceuticals, Inc.84763A108114,670$86,0030.00%
172ARCA biopharma, Inc.00211Y50632,461$64,5970.00%
173Praxis Precision Medicines, Inc.PRAX75,000$60,6750.00%
174Corbus Pharmaceuticals Holdings, Inc.CRBP5,143$37,3900.00%
175VYNE Therapeutics, Inc.VYNE7,520$23,1620.00%
176NexGel, Inc.NXGLW4,243$5,5160.00%
177Bellicum Pharmaceuticals, Inc.0794814046,000$1,9800.00%