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-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
163 tracked funds added or opened JHG while 93 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
JHG’s largest tracked holder by dollar value, TRIAN FUND MANAGEMENT, L.P., sizes it at 34.6% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 34.5pp 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 2025-Q4 and 2026-Q1, across 487 tracked filers holding JHG, 301 increased or opened the position and 206 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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
Funds opening or closing a position in JHG between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 51
- VANGUARD PORTFOLIO MANAGEMENT LLC$296M
- VANGUARD CAPITAL MANAGEMENT LLC$285M
- HBK INVESTMENTS L P$217M
- TIG Advisors, LLC$98M
- LMR Partners LLP$45M
- VANGUARD FIDUCIARY TRUST CO$39M
Full exits 41
- VANGUARD GROUP INC$577M
- Capital Research Global Investors$132M
- ARIEL INVESTMENTS, LLC$56M
- SOROS FUND MANAGEMENT LLC$47M
- Alberta Investment Management Corp$14M
- MACQUARIE GROUP LTD$9M
Largest adds
- CITADEL ADVISORS LLC$183M
- TRIAN FUND MANAGEMENT, L.P.$121M
- NEUBERGER BERMAN GROUP LLC$113M
- MILLENNIUM MANAGEMENT LLC$79M
- JPMORGAN CHASE & CO$65M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$63M
Largest trims
- BlackRock, Inc.$281M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$162M
- DIMENSIONAL FUND ADVISORS LP$95M
- Fisher Asset Management, LLC$80M
- Hudson Bay Capital Management LP$62M
- AQR CAPITAL MANAGEMENT LLC$41M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| TRIAN FUND MANAGEMENT, L.P. trimmed | 25,654,382 | $1.3B | 18.0% | 2026-Q2 |
| BlackRock, Inc. added | 13,846,329 | $719M | 9.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 5,771,779 | $296M | 4.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 5,555,218 | $285M | 3.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 4,268,155 | $219M | 3.0% | 2026-Q1 |
| HBK INVESTMENTS L P new | 4,230,723 | $217M | 2.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 3,414,602 | $177M | 2.4% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 3,281,442 | $170M | 2.3% | 2026-Q2 |
| Allianz Asset Management GmbH added | 3,199,982 | $164M | 2.2% | 2026-Q1 |
| STATE STREET CORP trimmed | 3,079,198 | $160M | 2.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,646,011 | $136M | 1.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,397,234 | $123M | 1.7% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 2,271,650 | $117M | 1.6% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 2,227,778 | $114M | 1.5% | 2026-Q1 |
| NORGES BANK trimmed | 1,910,397 | $99M | 1.3% | 2026-Q2 |
| TIG Advisors, LLC new | 1,906,107 | $98M | 1.3% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,900,848 | $98M | 1.3% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 1,796,764 | $92M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,793,383 | $92M | 1.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,748,473 | $90M | 1.2% | 2026-Q1 |
| MORGAN STANLEY added | 1,615,664 | $83M | 1.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 1,474,466 | $76M | 1.0% | 2026-Q1 |
| AQR Arbitrage LLC added | 1,440,631 | $74M | 1.0% | 2026-Q1 |
| Capital World Investors | 1,200,041 | $62M | 0.8% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 1,106,000 | $57M | 0.8% | 2026-Q1 |
| WATER ISLAND CAPITAL LLC added | 922,277 | $47M | 0.6% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 880,490 | $46M | 0.6% | 2026-Q2 |
| Man Group plc added | 883,556 | $45M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 873,867 | $45M | 0.6% | 2026-Q1 |
| LMR Partners LLP new | 873,327 | $45M | 0.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 830,457 | $43M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 764,745 | $39M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 713,880 | $37M | 0.5% | 2026-Q1 |
| GLAZER CAPITAL, LLC added | 682,254 | $35M | 0.5% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 643,452 | $33M | 0.4% | 2026-Q1 |
| UBS Group AG trimmed | 619,870 | $32M | 0.4% | 2026-Q1 |
| ALPINE ASSOCIATES MANAGEMENT INC. added | 590,576 | $30M | 0.4% | 2026-Q1 |
| CITIGROUP INC added | 575,046 | $30M | 0.4% | 2026-Q1 |
| Sculptor Capital LP new | 571,298 | $29M | 0.4% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 616,332 | $29M | 0.4% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 548,203 | $28M | 0.4% | 2026-Q2 |
| HRT FINANCIAL LP added | 533,366 | $27M | 0.4% | 2026-Q1 |
| Governors Lane LP added | 532,530 | $27M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 503,019 | $26M | 0.4% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT added | 425,031 | $22M | 0.3% | 2026-Q1 |
| IEQ CAPITAL, LLC trimmed | 418,655 | $22M | 0.3% | 2026-Q1 |
| Woodline Partners LP added | 417,527 | $21M | 0.3% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 398,208 | $20M | 0.3% | 2026-Q1 |
| GABELLI FUNDS LLC added | 388,624 | $20M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 371,484 | $19M | 0.3% | 2026-Q1 |
| Creative Planning added | 364,316 | $19M | 0.3% | 2026-Q1 |
| Corient Private Wealth LLC added | 363,834 | $19M | 0.3% | 2026-Q1 |
| Focus Partners Wealth added | 340,195 | $17M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 334,914 | $17M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 329,987 | $17M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 312,475 | $16M | 0.2% | 2026-Q1 |
| Athos Capital Ltd added | 311,583 | $16M | 0.2% | 2026-Q1 |
| Quinn Opportunity Partners LLC trimmed | 311,367 | $16M | 0.2% | 2026-Q1 |
| HARVEST MANAGEMENT LLC new | 310,000 | $16M | 0.2% | 2026-Q1 |
| Nuveen, LLC trimmed | 299,619 | $15M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 293,377 | $15M | 0.2% | 2026-Q1 |
| L2 Asset Management, LLC new | 289,902 | $15M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 275,130 | $14M | 0.2% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 271,335 | $14M | 0.2% | 2026-Q1 |
| Hudson Bay Capital Management LP trimmed | 264,000 | $14M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 244,505 | $13M | 0.2% | 2026-Q1 |
| Westchester Capital Management, LLC new | 230,719 | $12M | 0.2% | 2026-Q1 |
| Capula Management Ltd new | 225,417 | $12M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 222,776 | $12M | 0.2% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 224,432 | $12M | 0.2% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. added | 221,450 | $11M | 0.2% | 2026-Q1 |
| Invesco Ltd. trimmed | 217,154 | $11M | 0.2% | 2026-Q1 |
| Pacer Advisors, Inc. added | 458,572 | $11M | 0.1% | 2026-Q1 |
| Cerity Partners LLC added | 207,592 | $11M | 0.1% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 205,932 | $11M | 0.1% | 2026-Q1 |
| Verition Fund Management LLC added | 199,017 | $10M | 0.1% | 2026-Q2 |
| Polar Asset Management Partners Inc. added | 196,553 | $10M | 0.1% | 2026-Q1 |
| HANCOCK WHITNEY CORP added | 183,980 | $9M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 183,627 | $9M | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 176,594 | $9M | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 174,041 | $9M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 170,116 | $9M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC trimmed | 168,712 | $9M | 0.1% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV added | 168,129 | $9M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 165,085 | $8M | 0.1% | 2026-Q1 |
| CWM, LLC added | 160,591 | $8M | 0.1% | 2026-Q1 |
| Chicago Capital Management, LLC added | 213,000 | $8M | 0.1% | 2026-Q1 |
| P SCHOENFELD ASSET MANAGEMENT LP new | 156,300 | $8M | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 151,526 | $8M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 12,132,303 | $577M | 7.8% | 2025-Q4 stale |
| Capital Research Global Investors trimmed | 2,771,437 | $132M | 1.8% | 2025-Q4 stale |
| Clark Capital Management Group, Inc. added | 1,829,676 | $81M | 1.1% | 2025-Q3 stale |
| ARIEL INVESTMENTS, LLC trimmed | 1,169,327 | $56M | 0.7% | 2025-Q4 stale |
| SOROS FUND MANAGEMENT LLC new | 996,991 | $47M | 0.6% | 2025-Q4 stale |
| JUPITER ASSET MANAGEMENT LTD trimmed | 936,231 | $36M | 0.5% | 2025-Q2 stale |
| Silchester International Investors LLP trimmed | 491,558 | $18M | 0.2% | 2025-Q1 stale |
| Alberta Investment Management Corp new | 300,000 | $14M | 0.2% | 2025-Q4 stale |
| Azora Capital LP trimmed | 306,838 | $14M | 0.2% | 2025-Q3 stale |
| MACQUARIE GROUP LTD new | 184,879 | $9M | 0.1% | 2025-Q4 stale |
| Thrivent Financial for Lutherans trimmed | 210,401 | $8M | 0.1% | 2025-Q2 stale |
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.