COOKE & BIELER LP
SEC Form 13F institutional filer · CIK 0000024386
13F-HR · 43 reported holdings · 2026-03-31
Asset management firm.
Reported long-US-equity value
$3.87B
Top-10 concentration
46.3%
COOKE & BIELER LP — $3.87B AUM allocation strategy
COOKE & BIELER LP files SEC Form 13F and reports $3.87B of long US equity value across 43 reported holdings for 2026-03-31.
Its largest sector bet is Financials 21.3%, followed by Health Care 13.2% and Communication Services 10.6%.
The top 10 holdings account for 46% 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.
COOKE & BIELER LP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$3.87B
total across 43 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
46% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$FISV +289K sh · −$9.02M+$CRL +260K sh · +$28.5M+$ALLE +192K sh · +$21.7M
Biggest trims (shares)
−$OXY −911K sh · +$15.9M−$FIS −664K sh · −$68.4M−$ATO −638K sh · −$107M
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)
- Oil & Gas Exploration & Production10.5%—
- Transaction & Payment Processing Services9.3%—
- Property & Casualty Insurance8.5%—
- Telecom Tower REITs5.8%—
- Health Care Equipment4.7%—
- Health Care Services4.7%—
- Advertising4.4%—
- Life Sciences Tools & Services3.8%—
- Other holdings48.2%—
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 |
|---|---|---|---|---|---|
| $CCI | Crown Castle Inc | 2.75M | $224M | -176K | 5.8% |
| $FIS | Fidelity National Information Services Inc | 4.82M | $223M | -664K | 5.8% |
| $ACGL | Arch Capital Group Ltd | 2.24M | $215M | -397K | 5.6% |
| $BDX | Becton Dickinson and Company | 1.15M | $181M | +22K | 4.7% |
| $LH | Labcorp Holdings Inc | 674K | $180M | -78.9K | 4.6% |
| $OMC | Omnicom Group Inc | 2.28M | $172M | -255K | 4.4% |
| $COP | ConocoPhillips | 1.24M | $163M | -485K | 4.2% |
| $CRL | Charles River Laboratories International Inc | 868K | $150M | +260K | 3.9% |
| $OXY | Occidental Petroleum Corporation | 2.24M | $145M | -911K | 3.8% |
| $DIS | Walt Disney Company | 1.45M | $140M | +43.3K | 3.6% |
…and 33 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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