JANUS HENDERSON GROUP PLC

13D and 13G Filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.

Issuer % of Class Filed
Flex Ltd. 13G/A Amendment 5
FLEX · Y2573F102
 7.1% 8/14/2025
Event 6/30/2025
Verona Pharma PLC 13G/A Amendment 1
VRNA · 925050106
 7.2% 8/14/2025
Event 6/30/2025
Janux Therapeutics, Inc. 13G/A Amendment 2
JANX · 47103J105
 7.5% 8/14/2025
Event 6/30/2025
Structure Therapeutics Inc 13G/A Amendment 3
GPCR · 86366E106
 8.0% 8/14/2025
Event 6/30/2025
Akero Therapeutics, Inc. 13G/A Amendment 10
AKRO · 00973Y108
 8.5% 8/14/2025
Event 6/30/2025
Ziff Davis, Inc. 13G/A Amendment 6
ZD · 48123V102
 8.5% 8/14/2025
Event 6/30/2025
Teleflex Incorporated 13G/A Amendment 5
TFX · 879369106
 9.4% 8/14/2025
Event 6/30/2025
Madrigal Pharmaceuticals, Inc. 13G/A Amendment 6
MDGL · 558868105
 9.9% 8/14/2025
Event 6/30/2025
Lantheus Holdings, Inc. 13G/A Amendment 4
LNTH · 516544103
 10.0% 8/14/2025
Event 6/30/2025
Icu Medical, Inc. 13G/A Amendment 11
ICUI · 44930G107
 10.0% 8/14/2025
Event 6/30/2025
Liberty Media Corporation 13G/A Amendment 9
FWONK · 531229755
 6.1% 8/14/2025
Event 6/30/2025
Soleno Therapeutics, Inc. 13G/A Amendment 6
SLNO · 834203309
 10.5% 8/14/2025
Event 6/30/2025
Mirum Pharamaceuticals, Inc. 13G/A Amendment 5
MIRM · 604749101
 10.6% 8/14/2025
Event 6/30/2025
Protara Therapeutics, Inc. 13G/A Amendment 3
TARA · 74365U107
 10.6% 8/14/2025
Event 6/30/2025
Mereo Biopharma Group PLC 13G/A Amendment 5
MREO · 589492107
 11.1% 8/14/2025
Event 6/30/2025
WEX, Inc. 13G/A Amendment 12
WEX · 96208T104
 11.3% 8/14/2025
Event 6/30/2025
Vaxcyte, Inc. 13G/A Amendment 7
PCVX · 92243G108
 11.4% 8/14/2025
Event 6/30/2025
Avadel Pharmaceuticals PLC 13G/A Amendment 5
AVDL · G29687103
 11.5% 8/14/2025
Event 6/30/2025
Praxis Precision Medicines, Inc 13G/A Amendment 2
PRAX · 74006W207
 12.4% 8/14/2025
Event 6/30/2025
Consensus Cloud Solutions, Inc. 13G/A Amendment 6
CCSI · 20848V105
 12.9% 8/14/2025
Event 6/30/2025
Cimpress PLC 13G/A Amendment 13
CMPR · G2143T103
 13.3% 8/14/2025
Event 6/30/2025
89BIO, Inc. 13G/A Amendment 7
ETNB · 282559103
 14.2% 8/14/2025
Event 6/30/2025
Bright Minds Biosciences Inc. 13G/A Amendment 2
DRUG · 10919W405
 16.3% 8/14/2025
Event 6/30/2025
Monopar Therapeutics Inc 13G/A Amendment 3
MNPR · 61023L207
 19.2% 8/14/2025
Event 6/30/2025
Ascendis Pharma A/S 13G/A Amendment 7
ASND · 04351P101
 8.0% 8/14/2025
Event 6/30/2025
Tenax Therapeutics, Inc. 13G/A Amendment 4
TENX · 88032L605
 4.0% 8/14/2025
Event 6/30/2025
Larimar Therapeutics, Inc. 13G/A Amendment 5
LRMR · 517125100
 0% 8/14/2025
Event 3/31/2025
Omniab, Inc. 13G/A Amendment 4
OABI · 68218J103
 0.8% 8/14/2025
Event 6/30/2025
Entrada Therapeutics, Inc. 13G/A Amendment 2
TRDA · 29384C108
 4.0% 8/14/2025
Event 6/30/2025
The Beauty Health Company 13G/A Amendment 7
SKIN · 88331L108
 4.5% 8/14/2025
Event 6/30/2025
Walker & Dunlop, Inc. 13G/A Amendment 7
WD · 93148P102
 4.6% 8/14/2025
Event 6/30/2025
Biohaven Ltd. 13G/A Amendment 5
BHVN · G1110E107
 4.9% 8/14/2025
Event 6/30/2025
Dayforce, Inc. 13G
DAY · 15677J108
 5.2% 8/14/2025
Event 3/31/2025
Revvity, Inc. 13G
RVTY · 714046109
 6.1% 8/14/2025
Event 3/31/2025
Dyne Therapeutics Inc 13G/A Amendment 3
DYN · 26818M108
 10.1% 8/7/2025
Event 7/31/2025
Avidity Biosciences, Inc. 13G/A Amendment 2
RNAM · 05370A108
 10.1% 8/7/2025
Event 7/31/2025
Travere Therapeutics, Inc 13G/A Amendment 1
TVTX · 89422G107
 12.8% 8/7/2025
Event 7/31/2025
Surgery Partners, Inc. 13G/A Amendment 2
SGRY · 86881A100
 10.1% 7/7/2025
Event 6/30/2025
Praxis Precision Medicines, Inc 13G/A Amendment 1
PRAX · 74006W207
 11.3% 6/6/2025
Event 5/30/2025
Lantheus Holdings, Inc. 13G/A Amendment 4
LNTH · 516544103
 10.1% 6/6/2025
Event 5/30/2025
Mirum Pharamaceuticals, Inc. 13G/A Amendment 5
MIRM · 604749101
 10.3% 6/6/2025
Event 5/30/2025
Mirum Pharamaceuticals, Inc. 13G/A Amendment 4
MIRM · 604749101
 9.7% 5/15/2025
Event 3/31/2025
Mereo Biopharma Group PLC 13G/A Amendment 4
MREO · 589492107
 14.3% 5/14/2025
Event 3/31/2025
Teleflex Incorporated 13G/A Amendment 4
TFX · 879369106
 9.7% 5/14/2025
Event 3/31/2025
Tenax Therapeutics, Inc. 13G/A Amendment 3
TENX · 88032L605
 9.9% 5/14/2025
Event 3/31/2025
Forte Biosciences, Inc. 13G/A Amendment 1
FBRX · 34962G208
 9.9% 5/14/2025
Event 3/31/2025
Benitec Biopharma Inc. 13G/A Amendment 7
BNTC · 08205P209
 11.4% 5/14/2025
Event 3/31/2025
Sensata Technologies Holding PLC 13G/A Amendment 9
ST · G8060N102
 6.6% 5/14/2025
Event 3/31/2025
Structure Therapeutics Inc 13G/A Amendment 2
GPCR · 86366E106
 7.6% 5/14/2025
Event 3/31/2025
Omniab, Inc. 13G/A Amendment 3
OABI · 68218J103
 6.6% 5/14/2025
Event 3/31/2025
Ligand Pharmaceuticals Incorporated 13G/A Amendment 7
LGND · 53220K504
 5.3% 5/14/2025
Event 3/31/2025
Sensient Technologies Corporation 13G/A Amendment 10
SXT · 81725T100
 5.4% 5/14/2025
Event 3/31/2025
Rentokil Initial PLC 13G/A Amendment 2
RKLIF · G7494G105
 5.4% 5/14/2025
Event 3/31/2025
Walker & Dunlop, Inc. 13G/A Amendment 6
WD · 93148P102
 5.5% 5/14/2025
Event 3/31/2025
Revolution Medicines, Inc. 13G/A Amendment 1
RVMD · 76155X100
 5.5% 5/14/2025
Event 3/31/2025
Edgewise Therapeutics, Inc. 13G/A Amendment 1
EWTX · 28036F105
 5.6% 5/14/2025
Event 3/31/2025
Entrada Therapeutics, Inc. 13G/A Amendment 1
TRDA · 29384C108
 5.6% 5/14/2025
Event 3/31/2025
Amdocs Limited 13G/A Amendment 9
DOX · G02602103
 6.0% 5/14/2025
Event 3/31/2025
Globus Medical, Inc. 13G/A Amendment 7
GMED · 379577208
 6.1% 5/14/2025
Event 3/31/2025
Aramark 13G/A Amendment 2
ARMK · 03852U106
 6.2% 5/14/2025
Event 3/31/2025
Biohaven Ltd. 13G/A Amendment 4
BHVN · G1110E107
 6.3% 5/14/2025
Event 3/31/2025
Asure Software Inc 13G/A Amendment 2
ASUR · 04649U102
 6.4% 5/14/2025
Event 3/31/2025
SS&C Technologies Holdings, Inc. 13G/A Amendment 10
SSNC · 78467J100
 6.6% 5/14/2025
Event 3/31/2025
Flex Ltd. 13G/A Amendment 4
FLEX · Y2573F102
 6.9% 5/14/2025
Event 3/31/2025
Ideaya Biosciences, Inc. 13G/A Amendment 3
IDYA · 45166A102
 7.3% 5/14/2025
Event 3/31/2025
Osi Systems, Inc. 13G/A Amendment 10
OSIS · 671044105
 7.4% 5/14/2025
Event 3/31/2025
Janux Therapeutics, Inc. 13G/A Amendment 1
JANX · 47103J105
 7.8% 5/14/2025
Event 3/31/2025
Ziff Davis, Inc. 13G/A Amendment 5
ZD · 48123V102
 8.3% 5/14/2025
Event 3/31/2025
Larimar Therapeutics, Inc. 13G/A Amendment 4
LRMR · 517125100
 8.7% 5/14/2025
Event 3/31/2025
Akero Therapeutics, Inc. 13G/A Amendment 9
AKRO · 00973Y108
 8.9% 5/14/2025
Event 3/31/2025
Surgery Partners, Inc. 13G/A Amendment 1
SGRY · 86881A100
 9.1% 5/14/2025
Event 3/31/2025
Dyne Therapeutics Inc 13G/A Amendment 2
DYN · 26818M108
 9.2% 5/14/2025
Event 3/31/2025
Lantheus Holdings, Inc. 13G/A Amendment 3
LNTH · 516544103
 9.5% 5/14/2025
Event 3/31/2025
Avidity Biosciences, Inc. 13G/A Amendment 1
RNAM · 05370A108
 9.5% 5/14/2025
Event 3/31/2025
Madrigal Pharmaceuticals, Inc. 13G/A Amendment 5
MDGL · 558868105
 10.0% 5/14/2025
Event 3/31/2025
WEX, Inc. 13G/A Amendment 11
WEX · 96208T104
 10.3% 5/14/2025
Event 3/31/2025
Liberty Media Corporation 13G/A Amendment 8
FWONK · 531229755
 6.4% 5/14/2025
Event 3/31/2025
Ardelyx, Inc. 13G/A Amendment 6
ARDX · 039697107
 10.5% 5/14/2025
Event 3/31/2025
Protara Therapeutics, Inc. 13G/A Amendment 2
TARA · 74365U107
 10.5% 5/14/2025
Event 3/31/2025
Soleno Therapeutics, Inc. 13G/A Amendment 5
SLNO · 834203309
 11.2% 5/14/2025
Event 3/31/2025
Consensus Cloud Solutions, Inc. 13G/A Amendment 5
CCSI · 20848V105
 12.8% 5/14/2025
Event 3/31/2025
The Beauty Health Company 13G/A Amendment 6
SKIN · 88331L108
 6.6% 5/14/2025
Event 3/31/2025
Cimpress PLC 13G/A Amendment 12
CMPR · G2143T103
 13.3% 5/14/2025
Event 3/31/2025
Lexeo Therapeutics, Inc. 13G/A Amendment 4
LXEO · 52886X107
 13.7% 5/14/2025
Event 3/31/2025
89BIO, Inc. 13G/A Amendment 6
ETNB · 282559103
 14.0% 5/14/2025
Event 3/31/2025
Avadel Pharmaceuticals PLC 13G/A Amendment 4
AVDL · G29687103
 14.1% 5/14/2025
Event 3/31/2025
Mereo Biopharma Group PLC 13G/A Amendment 4
MREO · 589492107
 14.3% 5/14/2025
Event 3/31/2025
Monopar Therapeutics Inc 13G/A Amendment 2
MNPR · 61023L207
 18.6% 5/14/2025
Event 3/31/2025
Ascendis Pharma A/S 13G/A Amendment 6
ASND · 04351P101
 7.4% 5/14/2025
Event 3/31/2025
Travere Therapeutics, Inc 13G
TVTX · 89422G107
 8.5% 5/14/2025
Event 3/31/2025
Maze Therapeutics, Inc 13G
MAZE · 578784100
 5.7% 5/14/2025
Event 3/31/2025
Inspired Entertainment, Inc 13G
INSE · 45782N108
 5.0% 5/14/2025
Event 3/31/2025
Tyra Biosciences, Inc 13G
TYRA · 90240B106
 5.1% 5/14/2025
Event 3/31/2025
Gildan Activewear Inc 13G
GIL · 375916103
 6.4% 5/14/2025
Event 3/31/2025
Verona Pharma PLC 13G
VRNA · 925050106
 6.5% 5/14/2025
Event 3/31/2025
Praxis Precision Medicines, Inc 13G
PRAX · 74006W207
 7.6% 5/14/2025
Event 3/31/2025
Cargo Therapeutics, Inc. 13G/A Amendment 3
CRGX · 14179K101
 0% 5/14/2025
Event 3/31/2025
Immunome Inc 13G/A Amendment 2
IMNM · 45257U108
 2.2% 5/14/2025
Event 3/31/2025
Zai Lab Ltd 13G/A Amendment 2
G9887T116
 3.6% 5/14/2025
Event 3/31/2025
Blackbaud, Inc. 13G/A Amendment 9
BLKB · 09227Q100
 4.3% 5/14/2025
Event 3/31/2025