Grantham, Mayo, Van Otterloo & Co. LLC
SEC Form 13F institutional filer · CIK 0001352662
13F-HR · 265 reported holdings · 2026-03-31
Asset management firm known for value investing.
Reported long-US-equity value
$33.25B
Top-10 concentration
46.9%
Grantham, Mayo, Van Otterloo & Co. LLC — $33.2B AUM allocation strategy
Grantham, Mayo, Van Otterloo & Co. LLC files SEC Form 13F and reports $33.2B of long US equity value across 265 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 29.5%, followed by Health Care 21.1% and Communication Services 11.2%.
The top 10 holdings account for 47% 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.
Grantham, Mayo, Van Otterloo & Co. LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$33.2B
total across 265 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
47% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NFLX +4.02M sh · +$386M+$AES +1.76M sh · +$27.6M+$UBER +1.55M sh · +$54.3M
Biggest trims (shares)
−$WFC −5.27M sh · −$492M−$LRCX −2.44M sh · −$124M−$INTC −750K sh · −$27.5M
Exited to nil (held last quarter, gone now)
$NWS ($12.2M last qtr)$TAP ($9.74M last qtr)$MU ($5.99M last qtr)$AOS ($3.4M last qtr)$CNC ($3.11M 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)
- Interactive Media & Services11.2%—
- Pharmaceuticals9.9%—
- Systems Software6.9%—
- Semiconductor Materials & Equipment6.5%—
- Semiconductors6.1%—
- Technology Hardware, Storage & Peripherals5.3%—
- Broadline Retail3.9%—
- Life Sciences Tools & Services3.7%—
- Other holdings46.4%—
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 |
|---|---|---|---|---|---|
| $MSFT | Microsoft Corporation | 6.18M | $2.29B | +908K | 6.9% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 6.9M | $1.98B | +229K | 6.0% |
| $JNJ | Johnson & Johnson | 7.28M | $1.78B | +190K | 5.4% |
| $AAPL | Apple Inc | 6.94M | $1.76B | +230K | 5.3% |
| $META | Meta Platforms Inc | 3.07M | $1.76B | +164K | 5.3% |
| $LRCX | Lam Research Corporation | 6.9M | $1.48B | -2.44M | 4.4% |
| $AMZN | Amazon.com Inc | 6.23M | $1.3B | -124K | 3.9% |
| $TMO | Thermo Fisher Scientific Inc | 2.5M | $1.23B | +90.1K | 3.7% |
| $AVGO | Broadcom Inc | 3.35M | $1.04B | +212K | 3.1% |
| $USB | U.S. Bancorp | 19.1M | $994M | +713K | 3.0% |
…and 255 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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