SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
SEC Form 13F institutional filer · CIK 0001638555
13F-HR · 16 reported holdings · 2026-03-31
Reported long-US-equity value
$0.54B
Top-10 concentration
91.2%
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC — $536M AUM allocation strategy
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC files SEC Form 13F and reports $536M of long US equity value across 16 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 62.5%, followed by Industrials 19.1% and Utilities 10.2%.
The top 10 holdings account for 91% 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.
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$536M
total across 16 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
91% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$SNDK −554K sh · −$57.8M−$CRM −373K sh · −$86.3M−$NVDA −327K sh · −$66.5M
Exited to nil (held last quarter, gone now)
$GEV ($159M last qtr)$MSFT ($54.7M last qtr)$MU ($37.1M last qtr)$FSLR ($26.1M last qtr)$ODFL ($15.7M 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)
- Semiconductors22.3%—
- Technology Hardware, Storage & Peripherals22.0%—
- Electrical Components & Equipment13.8%—
- Internet Services & Infrastructure12.5%—
- Automotive Retail7.6%—
- Independent Power Producers & Energy Traders6.0%—
- Semiconductor Materials & Equipment4.4%—
- Electric Utilities4.2%—
- Other holdings7.2%—
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 |
|---|---|---|---|---|---|
| $SNDK | Sandisk Corporation | 185K | $118M | -554K | 22.0% |
| $NVDA | NVIDIA Corporation | 449K | $78.4M | -327K | 14.6% |
| $AKAM | Akamai Technologies Inc | 583K | $67M | — | 12.5% |
| $CVNA | Carvana Co | 130K | $40.7M | -123K | 7.6% |
| $VRT | Vertiv Holdings LLC | 161K | $40.3M | -66K | 7.5% |
| $ETN | Eaton Corporation PLC | 95K | $34M | — | 6.3% |
| $ADI | Analog Devices Inc | 104K | $33.1M | +97K | 6.2% |
| $NRG | NRG Energy Inc | 220K | $32.2M | — | 6.0% |
| $LRCX | Lam Research Corporation | 110K | $23.5M | -22K | 4.4% |
| $CEG | Constellation Energy Corporation | 80K | $22.3M | -50K | 4.2% |
…and 6 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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