Significant Ownership of Janus Henderson Group Ltd.
- Large-stake filing summary
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- Recent SEC Schedule 13D/G filings for Janus Henderson Group Ltd. focus on large-stake beneficial ownership disclosures and amendments.
- Use this view to spot new large holders, amended positions, and activist-style ownership evidence.
- Manager signature
- Kristin Mariani - Head of North America Compliance
- Manager location
- London
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Significant Ownership of Janus Henderson Group Ltd.
| Sym | Company | Class | Ownership | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|---|
| PRIVACORE PCAAM ALTERNATIVE INCOME FUND | Class I Shares | 67% | 2,520,000 | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 | ||||
| PRIVACORE PCAAM ALTERNATIVE GROWTH FUND | Class I Shares | 47% | 2,800,000 | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 | ||||
| MNPR | MONOPAR THERAPEUTICS INC | Common Stock | 20% | $105,138,701 | +$9,391,992 | 1,287,368 | +9.8% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| PRIVACORE VPC ASSET BACKED CREDIT FUND | Class I Shares | 17% | 1,743,804 | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 | ||||
| CMPR | CIMPRESS PLC | Ordinary Shares | 15% | $284,891,086 | +$21,424,139 | 3,620,423 | +8.1% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| PMN | PROMIS NEUROSCIENCES INC. | Common Shares | 14% | $542,958 | 1,292,757 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| DRUG | BRIGHT MINDS BIOSCIENCES INC. | Common Stock | 13% | $107,305,270 | +$10,721,888 | 1,284,324 | +11% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| CCSI | Consensus Cloud Solutions, Inc. | Common Stock | 13% | $72,729,753 | -$1,308,933 | 2,476,328 | -1.8% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| IMMX | IMMIX BIOPHARMA, INC. | Common Stock | 13% | $96,907,203 | +$45,717,862 | 9,090,732 | +89% | JANUS HENDERSON GROUP PLC | 29 May 2026 |
| PRAX | PRAXIS PRECISION MEDICINES, INC | Common Stock | 12% | $146,484,527 | +$12,214,062 | 2,763,859 | +9.1% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| CAMP | CAMP4 THERAPEUTICS CORP | Common Stock | 12% | $37,908,892 | 6,307,636 | JANUS HENDERSON GROUP PLC | 31 Dec 2025 | ||
| ENTA | ENANTA PHARMACEUTICALS INC | Common Stock | 12% | $41,823,994 | 3,494,068 | JANUS HENDERSON GROUP PLC | 31 Oct 2025 | ||
| IVVD | INVIVYD, INC. | Common Stock | 12% | $27,921,385 | +$1,222,450 | 25,383,077 | +4.6% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| TVTX | TRAVERE THERAPEUTICS, INC | Common Stock | 12% | $253,331,874 | -$17,690,876 | 10,599,660 | -6.5% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| MIRM | MIRUM PHARAMACEUTICALS, INC. | Common Stock | 12% | $479,098,679 | +$48,995,048 | 6,065,308 | +11% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| PCVX | VAXCYTE, INC. | Common Stock | 12% | $1,023,560,281 | +$214,375,746 | 16,575,875 | +26% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| WEX | WEX, Inc. | Common Stock | 11% | $568,535,395 | -$20,251,431 | 3,870,484 | -3.4% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| JBIO | JADE BIOSCIENCES, INC. | Common Stock | 11% | $139,393,136 | +$70,384,550 | 6,273,262 | +102% | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 |
| FDMT | 4D MOLECULAR THERAPEUTICS, INC. | Common Stock | 10% | $48,852,550 | +$5,691,163 | 5,247,151 | +13% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| SGRY | SURGERY PARTNERS, INC. | Common Stock | 10% | $282,111,656 | +$1,767,274 | 13,036,583 | +0.63% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| RLMD | RELMADA THERAPEUTICS, INC. | Common Stock | 10% | $35,932,374 | 7,439,415 | JANUS HENDERSON GROUP PLC | 30 Jan 2026 | ||
| ADAG | ADAGENE INC. | American Depository Receipt | 10% | $25,666,664 | 6,666,666 | JANUS HENDERSON GROUP PLC | 30 Apr 2026 | ||
| ICUI | ICU MEDICAL, INC. | Common Stock | 10% | $326,429,794 | +$272,229 | 2,470,146 | +0.08% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| LXEO | LEXEO THERAPEUTICS, INC. | Common Stock | 10% | $65,914,563 | +$10,720,599 | 7,291,434 | +19% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| FBRX | FORTE BIOSCIENCES, INC. | Common Stock | 10% | $47,025,334 | -$1,308,777 | 1,387,178 | -2.7% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| BNTC | BENITEC BIOPHARMA INC. | Common Stock | 10% | $44,484,293 | -$292,158,468 | 3,382,836 | -87% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| PALI | PALISADE BIO, INC. | Common Stock | 10% | $27,835,737 | 14,885,421 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| INO | INOVIO PHARMACEUTICALS, INC. | Common Stock | 10% | $12,999,275 | +$6,630,068 | 6,666,295 | +104% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| OVID | OVID THERAPEUTICS INC. | Common Stock | 10% | $9,461,772 | 7,114,114 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| EQ | EQUILLIUM, INC. | Common Stock | 10% | $9,429,020 | 6,083,239 | 0% | JANUS HENDERSON GROUP PLC | 30 Jan 2026 | |
| IMUX | IMMUNIC, INC. | Common Stock | 10% | $8,531,675 | +$6,622,427 | 12,016,444 | +347% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| KTTA | PASITHEA THERAPEUTICS CORP. | Common Stock | 10% | $7,160,756 | 10,229,652 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| TENX | TENAX THERAPEUTICS, INC. | Common Stock | 10% | $4,172,774 | +$3,057,778 | 623,733 | +274% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| CLRB | CELLECTAR BIOSCIENCES, INC. | Common Stock | 10% | $2,347,243 | 798,382 | JANUS HENDERSON GROUP PLC | 29 May 2026 | ||
| PTNT | PALATIN TECHNOLOGIES INC | Common Stock | 10% | $1,296,139 | 170,097 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| NERV | MINERVA NEUROSCIENCES, INC. | Common Stock | 9.9% | 4,307,759 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | |||
| TARA | PROTARA THERAPEUTICS, INC. | Common Stock | 9.6% | $27,128,527 | +$340,708 | 5,207,011 | +1.3% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| TFX | TELEFLEX INCORPORATED | Common Stock | 9.4% | $496,584,753 | -$21,152,842 | 4,149,271 | -4.1% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| GKOS | GLAUKOS CORP | Common Stock | 9.2% | $622,553,178 | +$271,166,371 | 5,348,395 | +77% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| MDGL | MADRIGAL PHARMACEUTICALS, INC. | Common Stock | 8.8% | $1,077,715,260 | +$231,599,280 | 2,018,647 | +27% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| DBVT | DBV TECHNOLOGIES S.A. | Common Stock | 8.8% | 20,469,392 | +288% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 | ||
| PTCT | PTC THERAPEUTICS, INC. | Common Stock | 8.7% | $494,116,913 | +$160,878,918 | 7,193,433 | +48% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| ZD | ZIFF DAVIS, INC. | Common Stock | 8.4% | $131,029,443 | -$4,946,066 | 3,439,093 | -3.6% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| DYN | DYNE THERAPEUTICS INC | Common Stock | 8.3% | $247,017,506 | -$4,350,263 | 13,647,376 | -1.7% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| IDYA | IDEAYA BIOSCIENCES, INC. | Common Stock | 8.3% | $242,078,230 | +$27,885,974 | 7,265,253 | +13% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| OLMA | OLEMA PHARMACEUTICALS, INC. | Common Stock | 8.2% | $105,987,556 | +$5,938,564 | 7,108,488 | +5.9% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| ASMB | ASSEMBLY BIOSCIENCES, INC. | Common Stock | 8.2% | $44,444,160 | 1,341,508 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| CTNM | CONTINEUM THERAPEUTICS, INC. | Class A Common Stock | 7.9% | $27,991,830 | 2,448,979 | JANUS HENDERSON GROUP PLC | 31 Dec 2025 | ||
| GPCR | STRUCTURE THERAPEUTICS INC | American Depositary Shares | 7.7% | $124,567,128 | -$3,477,040 | 4,448,826 | -2.7% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| LNTH | LANTHEUS HOLDINGS, INC. | Common Stock | 7.4% | $384,804,436 | -$75,142,600 | 4,774,841 | -16% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| BELFB | BEL FUSE INC. | Class B Common Stock | 7.2% | $157,273,173 | +$29,132,348 | 760,141 | +23% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| TYRA | TYRA BIOSCIENCES, INC | Common Stock | 7.2% | $148,931,747 | +$39,592,966 | 3,890,589 | +36% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| ARMK | ARAMARK | Common Stock | 6.9% | $783,751,824 | +$62,546,703 | 17,963,599 | +8.7% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| ST | SENSATA TECHNOLOGIES HOLDING PLC | Ordinary Shares | 6.9% | $307,320,322 | +$2,666,251 | 10,059,585 | +0.88% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| JANX | JANUX THERAPEUTICS, INC. | Common Stock | 6.9% | $58,330,085 | -$16,041,212 | 4,196,409 | -22% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| BBIO | BRIDGEBIO PHARMA, INC. | Common Stock | 6.8% | $977,092,024 | +$161,518,142 | 13,179,013 | +20% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| RVTY | REVVITY, INC. | American Depositary Shares | 6.6% | $668,529,251 | +$35,545,406 | 7,627,259 | +5.6% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| GMED | GLOBUS MEDICAL, INC. | Class A Common Stock | 6.1% | $522,135,958 | +$30,787,723 | 7,029,294 | +6.3% | JANUS HENDERSON GROUP PLC | 31 Mar 2025 |
| ASUR | ASURE SOFTWARE INC | Class A Common Stock | 6.1% | $13,752,294 | -$316,528 | 1,677,109 | -2.2% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| FLEX | FLEX LTD. | Ordinary Shares | 6% | $1,387,675,992 | -$247,217,838 | 22,331,445 | -15% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| ASND | ASCENDIS PHARMA A/S | American Depositary Shares | 6% | $924,469,795 | -$150,026,520 | 3,719,452 | -14% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| DAY | DAYFORCE, INC. | Common Stock | 6% | $647,420,298 | +$69,826,973 | 9,397,885 | +12% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| OCGN | OCUGEN, INC. | Common Stock | 6% | $26,800,000 | 20,000,000 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| LGVN | LONGEVERON INC. | Class A Common Stock | 5.9% | $1,446,291 | 1,291,331 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| MAZE | MAZE THERAPEUTICS, INC. | Common Stock | 5.8% | $78,390,380 | -$9,531,082 | 2,858,876 | -11% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| COLL | COLLEGIUM PHARMACEUTICAL, INC. | Common Stock | 5.8% | $60,374,279 | 1,825,651 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| GIL | GILDAN ACTIVEWEAR INC | Common Shares | 5.7% | $609,850,697 | +$5,649,574 | 10,593,203 | +0.94% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| BHVN | BIOHAVEN LTD. | Common Shares | 5.7% | $127,742,554 | -$133,177,733 | 8,584,676 | -51% | JANUS HENDERSON GROUP Ltd. | 30 Jun 2026 |
| RTO | RENTOKIL INITIAL PLC | Common Stock | 5.6% | -$2,244,147 | 142,436,808 | -0.31% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 | |
| EWTX | EDGEWISE THERAPEUTICS, INC. | Common Stock | 5.5% | $197,165,481 | +$31,204,379 | 5,915,556 | +19% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| LRN | STRIDE, INC. | Common Stock | 5.4% | $209,236,395 | 2,277,279 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| APG | API GROUP CORP | Common Stock | 5.3% | $763,991,448 | 22,228,439 | JANUS HENDERSON GROUP PLC | 30 Sep 2025 | ||
| LGND | LIGAND PHARMACEUTICALS INCORPORATED | Common Stock | 5.3% | $184,646,839 | -$3,251,582 | 1,042,378 | -1.7% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| TARS | TARSUS PHARMACEUTICALS, INC. | Common Stock | 5.3% | $162,805,962 | 2,240,963 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| DKNG | DRAFTKINGS INC. | Class A Common Stock | 5.1% | $884,721,120 | 25,313,909 | JANUS HENDERSON GROUP PLC | 31 Dec 2025 | ||
| BCAX | BICARA THERAPEUTICS INC. | Common Stock | 5.1% | $73,930,287 | 3,339,218 | JANUS HENDERSON GROUP PLC | 31 Mar 2026 | ||
| BMEA | BIOMEA FUSION, INC. | Common Stock | 5% | $4,725,000 | 3,750,000 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | ||
| RVMD | REVOLUTION MEDICINES, INC. | Common Stock | 4.9% | $963,367,165 | -$156,794,001 | 9,766,496 | -14% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| SXT | SENSIENT TECHNOLOGIES CORPORATION | Common Stock | 4.9% | $195,821,018 | -$18,962,586 | 2,084,311 | -8.8% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| INSE | INSPIRED ENTERTAINMENT, INC | Common Stock | 4.9% | $12,424,345 | -$284,889 | 1,324,557 | -2.2% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| FWONK | LIBERTY MEDIA CORPORATION | Series C Liberty Formula One Common Stock | 4.8% | $1,121,643,010 | -$292,351,894 | 10,738,564 | -21% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| NEO | NEOGENOMICS INC | Common Stock | 4.8% | $63,315,197 | 6,165,063 | JANUS HENDERSON GROUP PLC | 31 Dec 2024 | ||
| OSIS | OSI SYSTEMS, INC. | Common Stock | 4.7% | $229,724,799 | -$67,811,759 | 772,314 | -23% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| RNA | AVIDITY BIOSCIENCES, INC. | Common Stock | 4.6% | $500,546,351 | -$92,717,850 | 6,939,503 | -16% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| WD | WALKER & DUNLOP, INC. | Common Stock | 4.6% | $109,887,835 | -$21,308,077 | 1,559,135 | -16% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| XENE | XENON PHARMACEUTICALS INC. | Common Shares | 4.5% | $237,404,577 | +$13,194,714 | 4,175,982 | +5.9% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| SKIN | The Beauty Health Company | Common Stock | 4.5% | $10,922,459 | -$4,854,238 | 5,718,565 | -31% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| BLKB | BLACKBAUD, INC. | Common Stock | 4.3% | $135,336,329 | -$48,644,075 | 2,122,257 | -26% | JANUS HENDERSON GROUP PLC | 31 Mar 2025 |
| AKRO | AKERO THERAPEUTICS, INC. | Common Stock | 4.1% | $138,062,973 | -$117,126,544 | 3,397,779 | -46% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| TRDA | ENTRADA THERAPEUTICS, INC. | Common Stock | 4% | $9,964,391 | -$3,932,443 | 1,521,281 | -28% | JANUS HENDERSON GROUP PLC | 30 Jun 2025 |
| ETNB | 89bio, Inc. | Common Stock | 3.6% | $79,060,933 | -$226,534,240 | 5,378,185 | -74% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| ZLAB | ZAI LAB LTD | Common Stock | 3.6% | 39,501,040 | -41% | JANUS HENDERSON GROUP PLC | 31 Mar 2025 | ||
| SSNC | SS&C TECHNOLOGIES HOLDINGS, INC. | Common Stock | 3.5% | $575,697,059 | -$382,105,665 | 8,425,246 | -40% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| ARDX | ARDELYX, INC. | Common Stock | 3.4% | $51,148,240 | -$33,316,968 | 8,371,234 | -39% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| CZR | CAESARS ENTERTAINMENT INC | Common Stock | 3.3% | $198,781,761 | 7,101,885 | JANUS HENDERSON GROUP PLC | 31 Dec 2024 | ||
| MTSR | METSERA, INC. | Common Stock | 3.1% | $228,620,854 | -$148,748,091 | 3,242,849 | -39% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| DOX | AMDOCS LIMITED | Ordinary Shares | 2.3% | $204,096,503 | -$271,399,164 | 2,487,465 | -57% | JANUS HENDERSON GROUP PLC | 30 Sep 2025 |
| SLNO | SOLENO THERAPEUTICS, INC. | Common Shares | 2.3% | $63,290,461 | -$313,644,908 | 1,205,303 | -83% | JANUS HENDERSON GROUP PLC | 30 Apr 2026 |
| IMNM | IMMUNOME INC | Common Stock | 2.2% | $16,313,738 | -$13,130,862 | 1,914,758 | -45% | JANUS HENDERSON GROUP PLC | 31 Mar 2025 |
| AVDL | AVADEL PHARMACEUTICALS PLC | Ordinary Shares | 1.9% | $39,176,620 | -$120,413,722 | 1,823,865 | -75% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
Schedules 13D/G Reported by Janus Henderson Group Ltd.:
| Sym | Target | Class | Ownership | Change | Current shares | Change | Value | Reporting name | Form | Report period | Filing date |
|---|
Schedule rows are parsed from SEC 13D/G filings. Open the linked filing or target page to verify the reported ownership and shares.