Impax Asset Management Group plc
SEC Form 13F institutional filer · CIK 0001749768
13F-HR · 184 reported holdings · 2026-03-31
Asset manager.
Reported long-US-equity value
$10.22B
Top-10 concentration
45.2%
Impax Asset Management Group plc — $10.2B AUM allocation strategy
Impax Asset Management Group plc files SEC Form 13F and reports $10.2B of long US equity value across 184 reported holdings for 2026-03-31.
Its largest sector bet is Industrials 23.0%, followed by Information Technology 21.1% and Materials 10.6%.
The top 10 holdings account for 45% 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.
Impax Asset Management Group plc — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$10.2B
total across 184 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
45% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NVDA +607K sh · +$69.1M+$PCG +504K sh · +$8.96M+$AWK +430K sh · +$71.9M
Biggest trims (shares)
−$CARR −2.37M sh · −$121M−$PNR −1.6M sh · −$195M−$WM −892K sh · −$195M
Exited to nil (held last quarter, gone now)
$CIEN ($7.31M last qtr)$HPQ ($4.8M last qtr)$IFF ($3.45M last qtr)$ANET ($1.56M last qtr)$MSI ($1.45M 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)
- Industrial Machinery & Supplies & Components10.4%—
- Semiconductors8.4%—
- Industrial Gases8.3%—
- Semiconductor Materials & Equipment5.2%—
- Systems Software4.3%—
- Water Utilities3.8%—
- Automotive Parts & Equipment3.1%—
- Environmental & Facilities Services2.9%—
- Other holdings53.6%—
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 |
|---|---|---|---|---|---|
| $LIN | Linde plc | 1.71M | $849M | -130K | 8.3% |
| $NVDA | NVIDIA Corporation | 3.64M | $635M | +607K | 6.2% |
| $XYL | Xylem Inc. Common Stock New | 4.59M | $548M | -296K | 5.4% |
| $KLAC | KLA Corporation | 364K | $536M | +151K | 5.2% |
| $MSFT | Microsoft Corporation | 1.19M | $440M | -403K | 4.3% |
| $AWK | American Water Works Company Inc | 2.82M | $383M | +430K | 3.7% |
| $HUBB | Hubbell Inc | 683K | $335M | -138K | 3.3% |
| $APTV | Aptiv PLC | 4.59M | $319M | +322K | 3.1% |
| $VLTO | Veralto Corp | 3.38M | $299M | +231K | 2.9% |
| $AOS | A.O. Smith Corporation | 4.28M | $282M | -371K | 2.8% |
…and 174 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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