JANUS HENDERSON GROUP PLC
SEC Form 13F institutional filer · CIK 0001274173
13F-HR · 505 reported holdings · 2026-03-31
Global asset management firm, parent of Janus Henderson Investors.
Reported long-US-equity value
$149.14B
Top-10 concentration
41.3%
JANUS HENDERSON GROUP PLC — $149B AUM allocation strategy
JANUS HENDERSON GROUP PLC files SEC Form 13F and reports $149B of long US equity value across 505 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 28.8%, followed by Communication Services 8.1% and Health Care 5.0%.
The top 10 holdings account for 41% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
JANUS HENDERSON GROUP PLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$149B
total across 505 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
41% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$FCX +5.78M sh · +$386M+$BSX +3.91M sh · −$165M+$PLTR +2.95M sh · +$414M
Biggest trims (shares)
−$AKAM −9.85M sh · +$11.2M−$AMCR −8.48M sh · +$40.6M−$PFE −5.56M sh · −$128M
Exited to nil (held last quarter, gone now)
None this quarter
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors13.7%—
- Interactive Media & Services7.2%—
- Systems Software5.9%—
- Technology Hardware, Storage & Peripherals4.5%—
- Broadline Retail4.5%—
- Pharmaceuticals4.0%—
- Semiconductor Materials & Equipment2.6%—
- Transaction & Payment Processing Services2.5%—
- Other holdings55.2%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 83M | $14.4B | +191K | 9.7% |
| $MSFT | Microsoft Corporation | 23.9M | $8.81B | -2.92M | 5.9% |
| $AAPL | Apple Inc | 26.9M | $6.8B | -425K | 4.6% |
| $GOOGL | Alphabet Inc | 23.8M | $6.8B | -818K | 4.6% |
| $AMZN | Amazon.com Inc | 32.3M | $6.69B | -1.67M | 4.5% |
| $AVGO | Broadcom Inc | 19.4M | $5.96B | -863K | 4.0% |
| $LLY | Eli Lilly and Company | 4.35M | $3.98B | -94.6K | 2.7% |
| $META | Meta Platforms Inc | 6.94M | $3.94B | +783K | 2.6% |
| $MA | Mastercard Incorporated | 4.57M | $2.27B | -692K | 1.5% |
| $LRCX | Lam Research Corporation | 9.27M | $1.98B | +181K | 1.3% |
…and 495 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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