FRED ALGER MANAGEMENT, LLC
SEC Form 13F institutional filer · CIK 0000003520
13F-HR · 166 reported holdings · 2026-03-31
Fred Alger Management, LLC is an asset manager.
Reported long-US-equity value
$15.62B
Top-10 concentration
78.5%
FRED ALGER MANAGEMENT, LLC — $15.6B AUM allocation strategy
FRED ALGER MANAGEMENT, LLC files SEC Form 13F and reports $15.6B of long US equity value across 166 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 48.7%, followed by Communication Services 17.8% and Consumer Discretionary 13.9%.
The top 10 holdings account for 79% of reported value — a conviction-weighted book concentrated in its best ideas. 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.
FRED ALGER MANAGEMENT, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$15.6B
total across 166 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
79% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NVDA +1.08M sh · +$3.43M+$PLTR +578K sh · +$82.2M+$WELL +474K sh · +$94.5M
Biggest trims (shares)
−$VST −804K sh · −$131M−$NFLX −719K sh · −$62.6M−$APP −499K sh · −$660M
Exited to nil (held last quarter, gone now)
$BLDR ($38.7M last qtr)$UAL ($11M last qtr)$KEYS ($8.8M last qtr)$FICO ($8.1M last qtr)$CSGP ($7.55M last qtr)
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)
- Semiconductors24.1%—
- Interactive Media & Services13.5%—
- Technology Hardware, Storage & Peripherals12.1%—
- Systems Software11.8%—
- Broadline Retail9.6%—
- Automobile Manufacturers4.4%—
- Advertising3.0%—
- Heavy Electrical Equipment1.9%—
- Other holdings19.6%—
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 | 16.4M | $2.86B | +1.08M | 18.3% |
| $MSFT | Microsoft Corporation | 4.99M | $1.85B | -7.12K | 11.8% |
| $AMZN | Amazon.com Inc | 7.15M | $1.49B | +99.7K | 9.5% |
| $AAPL | Apple Inc | 4.64M | $1.18B | +87.6K | 7.5% |
| $GOOGL | Alphabet Inc | 3.82M | $1.1B | +306K | 7.0% |
| $META | Meta Platforms Inc | 1.78M | $1.02B | -188K | 6.5% |
| $AVGO | Broadcom Inc | 2.95M | $913M | +73.2K | 5.8% |
| $WDC | Western Digital Corporation | 2.66M | $719M | -24.5K | 4.6% |
| $TSLA | Tesla Inc | 1.83M | $679M | +173K | 4.3% |
| $APP | Applovin Corporation | 1.17M | $467M | -499K | 3.0% |
…and 156 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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