SG
Sienna Gestion — 13F Portfolio Breakdown & Top Holdings (Q2 2026)
Sienna GestionCIK: 0002021242
Diversified strategyMomentum followerQuality / disciplined sizing
Total reported value
$1.7B
Reporting period: 2026-06-30 · Number of holdings: 179
Sienna Gestion disclosed 179 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.7B and a quarterly turnover rate of 45.7%.
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Personality snowflake
- Concentration
- 8.14
- Portfolio Stability
- 45.72
- Momentum
- 100
- Sector conviction
- 61.49
- Diversification
- 100
- Sizing Uniformity
- 83.76
Sienna Gestion's disclosed holdings carry a Herfindahl concentration index of 0.020 — mathematically equivalent to about 49 equally-sized positions, well below its 179 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.62), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd GOOGL
+630.5% $62.9M
New buy GOOG
Add MU
-9.6% $27.0M
Add NBIS
+289.9% $25.2M
New buy JNJ
Add INTC
+335.3% $18.0M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 178 holdings (of 179 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 7.19% | -0.43% | -11.38% | |
| 2 | AAPL | Apple Inc | Stock-Tech | 5.97% | -0.23% | -6.45% | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 4.70% | -0.76% | -7.03% | |
| 4 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 4.12% | +3.64% | +630.50% | |
| 5 | AVGO | Broadcom Inc | Stock-Tech | 2.55% | +0.17% | -6.56% | |
| 6 | MU | Micron Technology Inc | Stock-Tech | 2.29% | +1.50% | -9.59% | |
| 7 | TSLA | Tesla Inc | Stock-Consumer Disc | 1.79% | -0.06% | -7.53% | |
| 8 | AMAT | Applied Materials Inc | Stock-Tech | 1.73% | +0.48% | -28.71% | |
| 9 | JPM | Jpmorgan Chase & Co | Stock-Financials | 1.69% | -0.07% | -8.60% | |
| 10 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 1.66% | +1.66% | NEW | |
| 11 | NBIS | Nebius Group N.V. | Stock-Other | 1.62% | +1.46% | +289.91% | |
| 12 | INTC | Intel CORP | Stock-Tech | 1.57% | +1.00% | +335.28% | |
| 13 | LLY | Eli Lilly & Co | Stock-Healthcare | 1.57% | +0.19% | -9.12% | |
| 14 | CSCO | Cisco Systems Inc | Stock-Tech | 1.55% | -0.16% | -34.11% | |
| 15 | HD | Home Depot Inc | Stock-Consumer Disc | 1.44% | -0.08% | -3.13% | |
| 16 | AMD | Advanced Micro Devices | Stock-Tech | 1.34% | +0.70% | -15.95% | |
| 17 | MFC | Manulife Financial CORP | Stock-Financials | 1.33% | -0.01% | -8.48% | |
| 18 | ATO | Atmos Energy CORP | Stock-Utilities | 1.22% | -0.32% | -7.34% | |
| 19 | JNJ | Johnson & Johnson | Stock-Healthcare | 1.20% | +1.20% | NEW | |
| 20 | LRCX | Lam Research CORP | Stock-Tech | 1.19% | +0.51% | -5.26% | |
| 21 | ✓ | Blackrock Inc | Stock-Other | 1.19% | -0.21% | -7.38% | |
| 22 | MA | Mastercard Inc - A | Stock-Financials | 1.17% | -0.15% | -4.44% | |
| 23 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 1.17% | -0.14% | -3.87% | |
| 24 | STT | State Street CORP | Stock-Financials | 1.12% | +0.12% | -10.24% | |
| 25 | C | Citigroup Inc | Stock-Financials | 1.07% | +0.46% | +47.25% | |
| 26 | TT | Trane Technologies plc | Stock-Industrials | 1.03% | +0.02% | -4.30% | |
| 27 | AER | AerCap Holdings N.V. | Stock-Industrials | 0.97% | -0.59% | -38.11% | |
| 28 | WDC | Western Digital CORP | Stock-Tech | 0.89% | -0.22% | -65.56% | |
| 29 | WAB | Wabtec CORP | Stock-Industrials | 0.88% | -0.10% | -11.85% | |
| 30 | WMT | Walmart Inc | Stock-Consumer Staples | 0.83% | +0.83% | NEW | |
| 31 | VZ | Verizon Communications Inc | Stock-Comm Services | 0.82% | -0.60% | -27.13% | |
| 32 | CM | Can Imperial Bk Of Commerce | Stock-Financials | 0.82% | +0.12% | +4.30% | |
| 33 | GD | General Dynamics CORP | Stock-Industrials | 0.80% | -0.28% | -19.60% | |
| 34 | TRV | Travelers Cos Inc/the | Stock-Financials | 0.79% | -0.06% | -9.26% | |
| 35 | AMP | Ameriprise Financial Inc | Stock-Financials | 0.78% | -0.17% | -10.80% | |
| 36 | ACN | Accenture plc | Stock-Tech | 0.77% | -0.27% | +29.64% | |
| 37 | GEV | GE Vernova Inc | Stock-Industrials | 0.75% | +0.22% | +15.73% | |
| 38 | TROW | T Rowe Price Group Inc | Stock-Financials | 0.75% | +0.09% | -1.80% | |
| 39 | VLO | Valero Energy CORP | Stock-Energy | 0.74% | -0.17% | -15.26% | |
| 40 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.72% | +0.72% | NEW | |
| 41 | BNY | Bank Of New York Mellon CORP | Stock-Financials | 0.71% | -0.28% | -36.51% | |
| 42 | WSM | Williams-sonoma Inc | Stock-Consumer Disc | 0.71% | +0.09% | -7.75% | |
| 43 | AEM | Agnico Eagle Mines LTD | Stock-Materials | 0.70% | -0.34% | -6.63% | |
| 44 | EME | Emcor Group Inc | Stock-Industrials | 0.70% | +0.02% | -1.92% | |
| 45 | PLD | Prologis Inc | Stock-Real Estate | 0.69% | — | +2.95% | |
| 46 | ANET | Arista Networks Inc | Stock-Tech | 0.69% | +0.07% | -12.34% | |
| 47 | ED | Consolidated Edison Inc | Stock-Utilities | 0.69% | +0.11% | +33.57% | |
| 48 | V | Visa Inc-class A Shares | Stock-Financials | 0.68% | +0.58% | +534.97% | |
| 49 | BKNG | Booking Holdings Inc | Stock-Consumer Disc | 0.67% | -0.07% | +2166.96% | |
| 50 | CAH | Cardinal Health Inc | Stock-Healthcare | 0.65% | +0.04% | +4.01% |
1–50 of 178
Portfolio Performance
Performance for Q3 2026
+5%
Performance Last 4 Quarters
+30.3%
- Stdev
- +12.9%
- Beta
- +1.05
- Alpha
- +0.9%
- Max Drawdown
- -9.3%
- Annualized Perf
- +21.7%
- Batting Avg vs S&P
- +44.4%
- Sortino
- +3.5
- Stutzer
- +0.48
- Treynor
- +0.2
- Sterling
- +1.24
- Calmar
- +2.33
- Information Ratio
- +0.6
- Tracking Error
- +3.1%
- Stdev Down
- +5.9%
- Winning Months %
- +70.4%
- Losing Months %
- +29.6%
- Best 12 Months
- +35.3%
- Worst 12 Months
- +9.4%
- Efficiency Ratio
- +0.65
- Sharpe
- +1.6
- Stdev Sectors
- +10.2%
- Skewness
- +0.3
- Kurtosis
- +0.74
- Upside Potential
- +4.97
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
Sienna Gestion's most significant position changes for 2026-06-30: New buy: Alphabet Inc-cl C (GOOG); New buy: Johnson & Johnson (JNJ); Sold out: Royal Bank Of Canada (RY); New buy: Walmart Inc (WMT); New buy: Costco Wholesale CORP (COST).
Showing top 200 changes by size (of 201 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc-cl A | +3.6% | +630.50% | Add |
| 2 | GOOG | Alphabet Inc-cl C | +1.7% | NEW | New buy |
| 3 | MU | Micron Technology Inc | +1.5% | -9.59% | Trim |
| 4 | NBIS | Nebius Group N.V. | +1.5% | +289.91% | Add |
| 5 | JNJ | Johnson & Johnson | +1.2% | NEW | New buy |
| 6 | INTC | Intel CORP | +1% | +335.28% | Add |
| 7 | WMT | Walmart Inc | +0.8% | NEW | New buy |
| 8 | COST | Costco Wholesale CORP | +0.7% | NEW | New buy |
| 9 | AMD | Advanced Micro Devices | +0.7% | -15.95% | Trim |
| 10 | KO | The Coca-Cola Company | +0.6% | NEW | New buy |
| 11 | V | Visa Inc-class A Shares | +0.6% | +534.97% | Add |
| 12 | TMO | Thermo Fisher Scientific Inc | +0.6% | NEW | New buy |
| 13 | RTX | Rtx CORP | +0.5% | NEW | New buy |
| 14 | ADSK | Autodesk Inc | +0.5% | NEW | New buy |
| 15 | LRCX | Lam Research CORP | +0.5% | -5.26% | Trim |
| 16 | AMAT | Applied Materials Inc | +0.5% | -28.71% | Trim |
| 17 | TGT | Target CORP | +0.5% | NEW | New buy |
| 18 | C | Citigroup Inc | +0.5% | +47.25% | Add |
| 19 | ADP | Automatic Data Processing | +0.4% | NEW | New buy |
| 20 | FIX | Comfort Systems USA Inc | +0.4% | NEW | New buy |
| 21 | UNH | Unitedhealth Group Inc | +0.4% | NEW | New buy |
| 22 | ULTA | Ulta Beauty Inc | +0.3% | NEW | New buy |
| 23 | KEYS | Keysight Technologies In | +0.3% | NEW | New buy |
| 24 | VRT | Vertiv Holdings Co-a | +0.3% | NEW | New buy |
| 25 | MELI | Mercadolibre Inc | +0.3% | NEW | New buy |
| 26 | GEV | GE Vernova Inc | +0.2% | +15.73% | Add |
| 27 | LLY | Eli Lilly & Co | +0.2% | -9.12% | Trim |
| 28 | AVGO | Broadcom Inc | +0.2% | -6.56% | Trim |
| 29 | STT | State Street CORP | +0.1% | -10.24% | Trim |
| 30 | CM | Can Imperial Bk Of Commerce | +0.1% | +4.30% | Add |
| 31 | ED | Consolidated Edison Inc | +0.1% | +33.57% | Add |
| 32 | TROW | T Rowe Price Group Inc | +0.1% | -1.80% | Trim |
| 33 | WSM | Williams-sonoma Inc | +0.1% | -7.75% | Trim |
| 34 | SYF | Synchrony Financial | +0.1% | +14.13% | Add |
| 35 | GIB | Cgi Inc | +0.1% | NEW | New buy |
| 36 | KMB | Kimberly-clark CORP | +0.1% | NEW | New buy |
| 37 | ANET | Arista Networks Inc | +0.1% | -12.34% | Trim |
| 38 | HWM | Howmet Aerospace Inc | +0.1% | +4.32% | Add |
| 39 | APH | Amphenol Corp-cl A | +0.1% | NEW | New buy |
| 40 | MS | Morgan Stanley | +0.1% | -7.34% | Trim |
| 41 | NTRS | Northern Trust CORP | +0.1% | NEW | New buy |
| 42 | BR | Broadridge Financial Solutio | +0.1% | NEW | New buy |
| 43 | CAT | Caterpillar Inc | +0.1% | NEW | New buy |
| 44 | LMT | Lockheed Martin CORP | +0.1% | NEW | New buy |
| 45 | CW | Curtiss-wright CORP | +0.1% | NEW | New buy |
| 46 | STN | Stantec Inc | +0.1% | +50.73% | Add |
| 47 | CEG | Constellation Energy | +0.1% | NEW | New buy |
| 48 | MPC | Marathon Petroleum CORP | +0.1% | NEW | New buy |
| 49 | MAR | Marriott International -cl A | +0.1% | NEW | New buy |
| 50 | OMC | Omnicom Group | +0.1% | NEW | New buy |
1–50 of 200
Filing History
FAQ
What is Sienna Gestion and what type of investor is it?
Sienna Gestion is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $1.7B, spread across 179 disclosed positions.
What are Sienna Gestion's largest equity positions?
Based on the latest 13F filing, Sienna Gestion's top holdings by market value are:
1. Nvidia CORP (NVDA) — $122.7M (7.2%)
2. Apple Inc (AAPL) — $102.0M (6.0%)
3. Microsoft CORP (MSFT) — $80.2M (4.7%)
4. Alphabet Inc-cl A (GOOGL) — $70.3M (4.1%)
5. Broadcom Inc (AVGO) — $43.5M (2.5%)
What changes did Sienna Gestion make in its most recent portfolio filing?
In the latest reported quarter, Sienna Gestion made 195 notable position adjustments: 65 new positions were initiated, 22 existing holdings were added to, 84 positions were partially reduced, and 24 were completely exited. The largest of these moves: New buy: Alphabet Inc-cl C (GOOG); New buy: Johnson & Johnson (JNJ); Sold out: Royal Bank Of Canada (RY); New buy: Walmart Inc (WMT); New buy: Costco Wholesale CORP (COST)
What sectors does Sienna Gestion focus on?
Sienna Gestion is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 38.6%
• Financials: 14.0%
• Industrials: 10.3%
• Consumer Discretionary: 9.3%
• Health Care: 8.9%
• Communication Services: 7.6%
Investment Profile
Sienna Gestion returned an annualized 21.7% over the trailing 27 months — outperforming the S&P 500 by 0.9 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.05 (roughly in line with the market) and a 44% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 38.6% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 46 over the past 4 quarters — a shift toward more active trading.
It has added to its AAPL position over the past two quarters (+$92.7M, now $102.0M), while trimming MSFT over the same stretch (-$31.4M, still holding $80.2M).
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Developer Access
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