Gladstone Capital Management LLP
SEC Form 13F institutional filer · CIK 0001353394
13F-HR · 25 reported holdings · 2026-03-31
Gladstone Capital Management LLP is an investment advisor.
Reported long-US-equity value
$0.80B
Top-10 concentration
97.1%
Gladstone Capital Management LLP — $805M AUM allocation strategy
Gladstone Capital Management LLP files SEC Form 13F and reports $805M of long US equity value across 25 reported holdings for 2026-03-31.
Its largest sector bet is Industrials 32.3%, followed by Communication Services 22.3% and Information Technology 20.4%.
The top 10 holdings account for 97% 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.
Gladstone Capital Management LLP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$805M
total across 25 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
97% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PWR +47.3K sh · +$48.9M+$GOOG +28.8K sh · −$6.87M+$MSFT +19.1K sh · −$20M
Biggest trims (shares)
−$XYZ −322K sh · −$21.9M−$ACGL −268K sh · −$25.7M−$ABNB −206K sh · −$27.9M
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 & Services22.3%—
- Aerospace & Defense16.7%—
- Construction & Engineering15.6%—
- Systems Software11.9%—
- Transaction & Payment Processing Services10.0%—
- Tobacco8.3%—
- Electronic Components6.0%—
- Property & Casualty Insurance5.8%—
- Other holdings3.4%—
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 |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 625K | $180M | +28.8K | 22.3% |
| $PWR | Quanta Services Inc | 228K | $125M | +47.3K | 15.6% |
| $RTX | RTX Corporation | 602K | $116M | -48.5K | 14.4% |
| $MSFT | Microsoft Corporation | 258K | $95.4M | +19.1K | 11.9% |
| $V | Visa Inc | 228K | $68.9M | — | 8.6% |
| $PM | Philip Morris International Inc | 404K | $66.8M | -3.37K | 8.3% |
| $GLW | Corning Incorporated | 357K | $48.5M | — | 6.0% |
| $ACGL | Arch Capital Group Ltd | 482K | $46.3M | -268K | 5.8% |
| $AVGO | Broadcom Inc | 65.8K | $20.4M | -147K | 2.5% |
| $LHX | L3Harris Technologies Inc | 39.8K | $13.7M | — | 1.7% |
…and 15 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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