GILDER GAGNON HOWE & CO LLC
SEC Form 13F institutional filer · CIK 0000902464
13F-HR · 64 reported holdings · 2026-03-31
Investment management firm.
Reported long-US-equity value
$3.46B
Top-10 concentration
71.8%
GILDER GAGNON HOWE & CO LLC — $3.46B AUM allocation strategy
GILDER GAGNON HOWE & CO LLC files SEC Form 13F and reports $3.46B of long US equity value across 64 reported holdings for 2026-03-31.
Its largest sector bet is Communication Services 32.9%, followed by Information Technology 22.9% and Consumer Discretionary 18.7%.
The top 10 holdings account for 72% 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.
GILDER GAGNON HOWE & CO LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$3.46B
total across 64 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
72% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$HOOD +674K sh · +$12.9M+$ECHO +245K sh · +$36.4M+$GLW +107K sh · +$15.4M
Biggest trims (shares)
−$BSX −1.06M sh · −$102M−$BLK −373K sh · −$13.9M−$NFLX −174K sh · −$6.25M
Exited to nil (held last quarter, gone now)
$CRWD ($38.3M last qtr)$COIN ($3.99M last qtr)$FICO ($3.1M last qtr)$LEN ($2.52M last qtr)$WMB ($251K 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)
- Semiconductors16.5%—
- Movies & Entertainment14.9%—
- Interactive Media & Services14.0%—
- Broadline Retail10.5%—
- Automobile Manufacturers6.7%—
- Health Care Equipment6.0%—
- Construction & Engineering5.9%—
- Wireless Telecommunication Services3.9%—
- Other holdings21.5%—
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 | 2.53M | $442M | -47.3K | 12.8% |
| $NFLX | Netflix Inc | 4.19M | $403M | -174K | 11.7% |
| $AMZN | Amazon.com Inc | 1.75M | $365M | -47.6K | 10.5% |
| $TSLA | Tesla Inc | 620K | $230M | -107K | 6.7% |
| $META | Meta Platforms Inc | 394K | $225M | -16.2K | 6.5% |
| $ISRG | Intuitive Surgical Inc | 450K | $207M | -24K | 6.0% |
| $PWR | Quanta Services Inc | 374K | $205M | +331 | 5.9% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 479K | $138M | -7.02K | 4.0% |
| $ECHO | EchoStar Corporation | 1.17M | $137M | +245K | 4.0% |
| $MU | Micron Technology Inc | 386K | $130M | -111K | 3.8% |
…and 54 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.
Newsletter signup
Free subscription. Daily trading day morning dispatch. No spam.