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Janus Henderson Group plc — 13F Holdings & Portfolio

CIK 1274173 · latest 13F-HR filed 2026-05-18

Backtest portfolio

Janus Henderson Group plc manages $209.44B in 13F-reported U.S. long-equity assets across 4,333 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NVDA (5.90%), MSFT (3.68%), GOOG (2.89%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 89 new positions and exited 88; 925 existing positions rose in reported value and 995 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$209.44B

Long-equity book

Holdings
4,333

Distinct positions

Period
2026-03-31

Filed 2026-05-18

Q/Q Activity
+89 / −88 / ↑925 / ↓995

vs 2025-12-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q1 26
NVDA6.9% · +0%MSFT4.2% · -11%AAPL3.2% · -2%GOOG3.2% · -3%AMZN3.2% · -5%AVGO2.8% · -4%LLY1.9% · -2%META1.9% · +13%TSM1.3% · -4%AZN1.1% · +890%MA1.1% · -13%LRCX0.9% · +2%JNJ0.9% · +2%ARGX0.9% · +3%KLAC0.9% · -8%ETN0.9% · +1%HWM0.8% · -2%ORCL0.8% · -17%ABBV0.7% · +8%NFLX0.7% · +12%FERG0.7% · +2%V0.6% · +33%FLEX0.6% · -8%GEV0.6% · +4359%MU0.6% · +20%JPM0.6% · -0%DHR0.6% · -5%APH0.6% · -4%DASH0.6% · +40%BKNG0.5% · -15%PRAX0.5% · +7%LPLA0.5% · +9%MELI0.5% · +2%TTE0.5% · +25%MDGL0.5% · +27%BSX0.5% · +31%UNH0.5% · +2%ICE0.5% · -4%BBIO0.5% · +20%PCVX0.5% · +24%VRTX0.5% · -4%RVMD0.5% · -21%APG0.5% · +1%PGR0.4% · -13%TDY0.4% · -9%GE0.4% · -8%FWONK0.4% · +3%DDOG0.4% · +23%GOOGL0.4% · +21%CVX0.4% · -14%ON0.4% · +11%INTU0.4% · -3%JBHT0.4% · +1%ABT0.4% · +9%SPOT0.4% · +20%TJX0.4% · -2%LNT0.4% · +1%TT0.4% · +11%BA0.4% · -1%ISRG0.4% · +4%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q4 25 → Q1 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

3 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 29.8%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

Name Title / Status Ownership Type

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 925 →

Top Trims

Show all 995 →

New Positions

Show all 89 →

Exited Positions

Show all 88 →

Janus Henderson Group plc Holdings (2026-03-31)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION NVDA 67066G104 $12.35B 5.90% 71,193,321 SH
2 MICROSOFT CORP MSFT 594918104 $7.71B 3.68% 20,924,713 SH
3 ALPHABET INC GOOG 02079K107 $6.05B 2.89% 21,163,872 SH
4 AMAZON COM INC AMZN 023135106 $5.83B 2.78% 28,163,771 SH
5 APPLE INC AAPL 037833100 $5.78B 2.76% 22,887,936 SH
6 BROADCOM INC AVGO 11135F101 $5.24B 2.50% 17,025,997 SH
7 ELI LILLY & CO LLY 532457108 $3.77B 1.80% 4,114,185 SH
8 META PLATFORMS INC META 30303M102 $3.29B 1.57% 5,773,558 SH
9 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $2.05B 0.98% 6,149,823 SH
10 MASTERCARD INCORPORATED MA 57636Q104 $1.96B 0.94% 3,943,665 SH
11 LAM RESEARCH CORP LRCX 512807306 $1.89B 0.90% 8,843,296 SH
12 EATON CORP PLC ETN G29183103 $1.75B 0.83% 4,933,088 SH
13 HOWMET AEROSPACE INC HWM 443201108 $1.73B 0.83% 7,595,751 SH
14 JOHNSON & JOHNSON JNJ 478160104 $1.72B 0.82% 7,047,825 SH
15 ARGENX SE ARGX 04016X101 $1.72B 0.82% 2,363,157 SH
16 KLA CORP KLAC 482480100 $1.69B 0.81% 1,147,168 SH
17 ORACLE CORP ORCL 68389X105 $1.61B 0.77% 11,043,219 SH
18 ABBVIE INC ABBV 00287Y109 $1.43B 0.68% 6,593,384 SH
19 ASTRAZENECA PLC AZN G0593M107 $1.38B 0.66% 7,137,892 SH
20 NVIDIA CORPORATION NVDA 67066G104 $1.35B 0.65% 7,764,098 SH
21 FERGUSON ENTERPRISES INC FERG 31488V107 $1.34B 0.64% 5,729,879 SH
22 GE VERNOVA INC GEV 36828A101 $1.28B 0.61% 1,478,362 SH
23 VISA INC V 92826C839 $1.23B 0.59% 4,071,140 SH
24 NETFLIX INC. NFLX 64110L106 $1.19B 0.57% 12,426,045 SH
25 FLEXTRONICS INTL LTD FLEX Y2573F102 $1.16B 0.55% 17,748,594 SH
26 DANAHER CORP DEL DHR 235851102 $1.16B 0.55% 6,152,614 SH
27 DOORDASH INC DASH 25809K105 $1.12B 0.53% 7,502,623 SH
28 BOOKING HOLDINGS INC BKNG 09857L108 $1.10B 0.53% 261,402 SH
29 PRAXIS PRECISION MEDICINES I PRAX 74006W207 $1.09B 0.52% 3,373,916 SH
30 JPMORGAN CHASE & CO JPM 46625H100 $1.06B 0.51% 3,616,007 SH
31 LPL FINL HLDGS INC LPLA 50212V100 $1.05B 0.50% 3,482,544 SH
32 MADRIGAL PHARMACEUTICALS INC MDGL 558868105 $1.03B 0.49% 1,977,094 SH
33 BOSTON SCIENTIFIC CORP BSX 101137107 $992.9M 0.47% 15,823,601 SH
34 AMPHENOL CORP APH 032095101 $982.2M 0.47% 7,773,386 SH
35 UNITEDHEALTH GROUP INC UNH 91324P102 $952.2M 0.45% 3,546,399 SH
36 BRIDGEBIO PHARMA INC BBIO 10806X102 $950.9M 0.45% 12,805,421 SH
37 VAXCYTE INC PCVX 92243G108 $936.4M 0.45% 16,166,502 SH
38 REVOLUTION MEDICINES INC RVMD 76155X100 $927.5M 0.44% 9,539,859 SH
39 ASTRAZENECA PLC AZN G0593M107 $913.2M 0.44% 4,688,493 SH
40 MERCADOLIBRE INC MELI 58733R102 $910.5M 0.43% 526,626 SH
41 DATADOG INC DDOG 23804L103 $892.9M 0.43% 7,642,236 SH
42 LIBERTY MEDIA CORP DEL FWONK 531229755 $890.0M 0.42% 10,467,749 SH
43 VERTEX PHARMACEUTICALS INC VRTX 92532F100 $887.9M 0.42% 1,988,325 SH
44 TELEDYNE TECHNOLOGIES INC TDY 879360105 $872.7M 0.42% 1,442,471 SH
45 GE AEROSPACE GE 369604301 $872.1M 0.42% 3,073,092 SH
46 TOTALENERGIES SE TTE F92124100 $854.2M 0.41% 9,168,621 SH
47 INTERCONTINENTAL EXCHANGE IN ICE 45866F104 $842.0M 0.40% 5,389,905 SH
48 PROGRESSIVE CORP PGR 743315103 $820.3M 0.39% 4,137,940 SH
49 INTUIT INTU 461202103 $818.3M 0.39% 1,892,514 SH
50 HUNT J B TRANS SVCS INC JBHT 445658107 $801.3M 0.38% 3,781,702 SH
Filing History
Period Filed AUM Holdings Accession
2026-03-31 2026-05-15 $201.68B 4,232 0001085146-26-000412
2026-03-31 2026-05-18 $209.44B 4,333 0001085146-26-000420
2025-12-31 2026-02-17 $223.31B 4,350 0001085146-26-000226
2025-09-30 2025-11-14 $219.04B 4,336 0001085146-25-005993
Filer Information
Address
201 BISHOPSGATE
LONDON EC2M3AE
Phone
442078181818
Filing Manager
JANUS HENDERSON GROUP PLC
LONDON, X0
Signatory
Kristin Mariani
Head of North America Compliance