GREAT LAKES ADVISORS, LLC
SEC Form 13F institutional filer · CIK 0001078013
13F-HR · 329 reported holdings · 2026-03-31
Investment advisor.
Reported long-US-equity value
$9.72B
Top-10 concentration
23.5%
GREAT LAKES ADVISORS, LLC — $9.72B AUM allocation strategy
GREAT LAKES ADVISORS, LLC files SEC Form 13F and reports $9.72B of long US equity value across 329 reported holdings for 2026-03-31.
Its largest sector bet is Financials 11.4%, followed by Information Technology 5.3% and Communication Services 5.1%.
The top 10 holdings account for 24% 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.
GREAT LAKES ADVISORS, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$9.72B
total across 329 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
24% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$IVV +309K sh · +$25.7M+$PFE +173K sh · +$6.52M+$TJX +128K sh · +$25.7M
Biggest trims (shares)
−$WFC −272K sh · −$52.1M−$C −226K sh · −$28.1M−$PEG −200K sh · −$15.9M
Exited to nil (held last quarter, gone now)
$LULU ($2.83M last qtr)$XYZ ($1.72M last qtr)$NWS ($1.08M last qtr)$SWKS ($1.01M last qtr)$IYY ($988K 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)
- Diversified Banks6.8%—
- Interactive Media & Services3.6%—
- Semiconductors3.4%—
- Integrated Oil & Gas2.6%—
- Broadline Retail2.6%—
- Aerospace & Defense2.0%—
- Pharmaceuticals1.9%—
- Industrial Gases1.9%—
- Other holdings75.2%—
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 |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 1.21M | $347M | +54.1K | 3.6% |
| $JPM | JP Morgan Chase & Co | 1.13M | $334M | +46.2K | 3.4% |
| $XOM | ExxonMobil Holdings Corporation | 1.51M | $256M | +54.4K | 2.6% |
| $AMZN | Amazon.com Inc | 1.22M | $254M | +9.44K | 2.6% |
| $RTX | RTX Corporation | 999K | $193M | +35.2K | 2.0% |
| $MRK | Merck & Company Inc | 1.57M | $189M | -108K | 1.9% |
| $LIN | Linde plc | 366K | $182M | +16.3K | 1.9% |
| $MSFT | Microsoft Corporation | 488K | $181M | +39.4K | 1.9% |
| $PH | Parker-Hannifin Corporation | 200K | $179M | +6.33K | 1.8% |
| $NVDA | NVIDIA Corporation | 1.01M | $175M | -16.6K | 1.8% |
…and 319 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.