Who owns Janus Henderson Group (JHG)
Which tracked institutional funds hold JHG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See JHG company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
JHG’s largest tracked holder by dollar value, TRIAN FUND MANAGEMENT, L.P., sizes it at 31.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 31.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in JHG divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, we do not read how tracked institutions changed their JHG positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. Over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| TRIAN FUND MANAGEMENT, L.P. trimmed | 25,654,382 | $1.3B | 20.3% | 2026-Q2 |
| BlackRock, Inc. added | 13,846,329 | $719M | 11.0% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 5,901,943 | $307M | 4.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 5,757,365 | $299M | 4.6% | 2026-Q2 |
| HBK INVESTMENTS L P added | 5,149,300 | $268M | 4.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 3,629,487 | $189M | 2.9% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 3,414,602 | $177M | 2.7% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 3,281,442 | $170M | 2.6% | 2026-Q2 |
| STATE STREET CORP trimmed | 3,079,198 | $160M | 2.4% | 2026-Q2 |
| FIL Ltd new | 3,020,000 | $157M | 2.4% | 2026-Q2 |
| AQR Arbitrage LLC added | 2,522,373 | $131M | 2.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 2,210,106 | $115M | 1.8% | 2026-Q2 |
| CREDIT INDUSTRIEL ET COMMERCIAL added | 2,113,002 | $110M | 1.7% | 2026-Q2 |
| TIG Advisors, LLC added | 2,005,000 | $104M | 1.6% | 2026-Q2 |
| NORGES BANK trimmed | 1,910,397 | $99M | 1.5% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 1,876,066 | $97M | 1.5% | 2026-Q2 |
| Allianz Asset Management GmbH trimmed | 1,836,194 | $94M | 1.4% | 2026-Q2 |
| Quantinno Capital Management LP added | 1,693,925 | $88M | 1.3% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 1,686,535 | $88M | 1.3% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,521,496 | $79M | 1.2% | 2026-Q2 |
| Beryl Capital Management LLC new | 1,414,000 | $74M | 1.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 1,355,666 | $70M | 1.1% | 2026-Q2 |
| NEXPOINT ASSET MANAGEMENT, L.P. new | 1,263,211 | $66M | 1.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,238,193 | $64M | 1.0% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 1,222,252 | $63M | 1.0% | 2026-Q2 |
| First Trust Capital Management L.P. new | 1,195,379 | $62M | 0.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,166,170 | $61M | 0.9% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 1,127,172 | $59M | 0.9% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 1,035,831 | $54M | 0.8% | 2026-Q2 |
| Polar Asset Management Partners Inc. added | 935,958 | $49M | 0.7% | 2026-Q2 |
| Man Group plc added | 912,480 | $47M | 0.7% | 2026-Q2 |
| WATER ISLAND CAPITAL LLC trimmed | 890,916 | $46M | 0.7% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 880,490 | $46M | 0.7% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 811,000 | $42M | 0.6% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 797,192 | $41M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 770,891 | $40M | 0.6% | 2026-Q2 |
| CITIGROUP INC added | 766,161 | $40M | 0.6% | 2026-Q2 |
| Groupe la Francaise added | 730,188 | $38M | 0.6% | 2026-Q2 |
| ODDO BHF ASSET MANAGEMENT SAS new | 700,000 | $36M | 0.6% | 2026-Q2 |
| GABELLI FUNDS LLC added | 680,792 | $35M | 0.5% | 2026-Q2 |
| ALPINE ASSOCIATES MANAGEMENT INC. trimmed | 587,894 | $31M | 0.5% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 548,203 | $28M | 0.4% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT added | 541,914 | $28M | 0.4% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 503,019 | $26M | 0.4% | 2026-Q2 |
| GARDNER LEWIS ASSET MANAGEMENT L P new | 455,134 | $24M | 0.4% | 2026-Q2 |
| Creative Planning added | 452,530 | $24M | 0.4% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 421,254 | $22M | 0.3% | 2026-Q2 |
| Squarepoint Ops LLC added | 412,114 | $21M | 0.3% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 387,687 | $20M | 0.3% | 2026-Q2 |
| GABELLI & Co INVESTMENT ADVISERS, INC. added | 385,800 | $20M | 0.3% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 366,260 | $19M | 0.3% | 2026-Q2 |
| Engineers Gate Manager LP added | 354,308 | $18M | 0.3% | 2026-Q2 |
| HARVEST MANAGEMENT LLC added | 349,500 | $18M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 343,916 | $18M | 0.3% | 2026-Q2 |
| Skandinaviska Enskilda Banken AB (publ) added | 339,468 | $18M | 0.3% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 323,925 | $17M | 0.3% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 306,214 | $16M | 0.2% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 295,575 | $15M | 0.2% | 2026-Q2 |
| UBS Group AG trimmed | 292,205 | $15M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 279,583 | $15M | 0.2% | 2026-Q2 |
| Capula Management Ltd added | 270,197 | $14M | 0.2% | 2026-Q2 |
| Hudson Bay Capital Management LP trimmed | 264,000 | $14M | 0.2% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 262,794 | $14M | 0.2% | 2026-Q2 |
| Taconic Capital Advisors LP new | 250,000 | $13M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 247,405 | $13M | 0.2% | 2026-Q2 |
| Westchester Capital Management, LLC | 230,719 | $12M | 0.2% | 2026-Q2 |
| Weiss Asset Management LP added | 225,085 | $12M | 0.2% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 222,776 | $12M | 0.2% | 2026-Q2 |
| Corient Private Wealth LP trimmed | 211,154 | $11M | 0.2% | 2026-Q2 |
| Verition Fund Management LLC added | 199,017 | $10M | 0.2% | 2026-Q2 |
| Cerity Partners LLC trimmed | 196,876 | $10M | 0.2% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 187,868 | $10M | 0.1% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 182,958 | $10M | 0.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 180,297 | $9M | 0.1% | 2026-Q2 |
| CSS LLC/IL added | 176,575 | $9M | 0.1% | 2026-Q2 |
| EQUITEC PROPRIETARY MARKETS, LLC added | 172,767 | $9M | 0.1% | 2026-Q2 |
| Yakira Capital Management, Inc. added | 163,476 | $8M | 0.1% | 2026-Q2 |
| P SCHOENFELD ASSET MANAGEMENT LP trimmed | 155,800 | $8M | 0.1% | 2026-Q2 |
| CAPITOLIS LIQUID GLOBAL MARKETS LLC new | 151,000 | $8M | 0.1% | 2026-Q2 |
| Nuveen, LLC trimmed | 148,497 | $8M | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 146,053 | $8M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 143,437 | $7M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 140,905 | $7M | 0.1% | 2026-Q2 |
| Carmignac Gestion | 137,300 | $7M | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 128,357 | $7M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 127,486 | $7M | 0.1% | 2026-Q2 |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 125,434 | $7M | 0.1% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC added | 123,273 | $6M | 0.1% | 2026-Q2 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM trimmed | 116,203 | $6M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 113,299 | $6M | 0.1% | 2026-Q2 |
| CIBC Bancorp USA Inc. new | 112,177 | $6M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 107,489 | $6M | 0.1% | 2026-Q2 |
| Mariner, LLC trimmed | 106,128 | $6M | 0.1% | 2026-Q2 |
| Arax Advisory Partners added | 100,000 | $5M | 0.1% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL trimmed | 100,000 | $5M | 0.1% | 2026-Q2 |
| LMR Partners LLP trimmed | 99,712 | $5M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 97,533 | $5M | 0.1% | 2026-Q2 |
| Ruffer LLP added | 97,099 | $5M | 0.1% | 2026-Q2 |
| CREDIT AGRICOLE S A | 93,353 | $5M | 0.1% | 2026-Q2 |
| TOKIO MARINE ASSET MANAGEMENT CO LTD added | 90,800 | $5M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.