Sienna Gestion
Long book
$1.53B
Q1 2026
Positions
136
Top-10 weight
32%
concentration
Last quarter
+15.6%
SPY +14.8%
Turnover
31%
of book per quarter
Strategy in plain words
auto-generated from filingsSienna Gestion is an institutional manager, running a $1.53B US long book across 136 positions.
The portfolio is moderately concentrated (top 10 ≈ 32% of the book). The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: NVIDIA CORP, APPLE INC, MICROSOFT CORP, BROADCOM INC, TESLA INC.
Over the last 9 quarters its long book ran on average 0.4pp per quarter behind the S&P 500, beating the index in 4 of 9 quarters. Signal value of individual moves is limited — treat changes as weak evidence.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+2.1%
Q2 2024
+6.0%
Q3 2024
+0.8%
Q4 2024
-4.7%
Q1 2025
+10.5%
Q2 2025
+7.2%
Q3 2025
+2.9%
Q4 2025
-3.4%
Q1 2026
+15.6%
Sector allocation
Technology 39%
Financials 17%
Industrials 11%
Services media 7%
Consumer discretionary 7%
Healthcare 5%
Communications 3%
Other 3%
Long book by quarter
What does Sienna Gestion own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| NVDA NVIDIA CORP | Technology | 702.3K | $116.9M | 7.6% | +0.5% |
| AAPL APPLE INC | Technology | 382.6K | $95.0M | 6.2% | +1027.8% |
| MSFT MICROSOFT CORP | Technology | 231.5K | $83.7M | 5.5% | +0.6% |
| AVGO BROADCOM INC | Technology | 123.5K | $36.5M | 2.4% | -10.7% |
| TSLA TESLA INC | Industrials | 79.3K | $28.4M | 1.9% | +962.4% |
| JPM JPMORGAN CHASE & CO | Financials | 94.6K | $27.0M | 1.8% | -32.1% |
| CSCO CISCO SYSTEMS INC | Technology | 338.2K | $26.2M | 1.7% | -29.3% |
| AER AERCAP HOLDINGS NV | Services media | 179.7K | $23.9M | 1.6% | +80.6% |
| ATO ATMOS ENERGY CORP | Utilities | 127.0K | $23.7M | 1.5% | +124.8% |
| HD HOME DEPOT INC | Consumer discretionary | 71.4K | $23.3M | 1.5% | +0.5% |
| VZ VERIZON COMMUNICATIONS INC | Communications | 430.6K | $21.8M | 1.4% | +38.5% |
| BLK BLACKROCK INC | Financials | 22.9K | $21.5M | 1.4% | New |
| LLY ELI LILLY & CO | Healthcare | 23.7K | $21.2M | 1.4% | +16.9% |
| MFC MANULIFE FINANCIAL CORP | Financials | 604.0K | $20.5M | 1.3% | Held |
| MA MASTERCARD INC - A | Services media | 40.7K | $20.3M | 1.3% | +2302.2% |
| PG PROCTER & GAMBLE CO/THE | Other | 138.0K | $20.1M | 1.3% | +0.6% |
| AMAT APPLIED MATERIALS INC | Technology | 58.9K | $19.2M | 1.2% | -46.7% |
| WDC WESTERN DIGITAL CORP | Technology | 67.3K | $17.1M | 1.1% | -21.8% |
| GD GENERAL DYNAMICS CORP | Industrials | 48.0K | $16.5M | 1.1% | +655.4% |
| AEM AGNICO EAGLE MINES LTD | Materials | 82.9K | $16.0M | 1.0% | -1.8% |
| ACN ACCENTURE PLC-CL A | Services media | 80.3K | $16.0M | 1.0% | Held |
| TT TRANE TECHNOLOGIES PLC | Technology | 38.0K | $15.4M | 1.0% | Held |
| STT STATE STREET CORP | Financials | 123.7K | $15.4M | 1.0% | Held |
| BNY BANK OF NEW YORK MELLON CORP | Financials | 130.8K | $15.2M | 1.0% | Held |
| WAB WABTEC CORP | Industrials | 63.1K | $15.1M | 1.0% | Held |
| AMP AMERIPRISE FINANCIAL INC | Financials | 33.0K | $14.6M | 0.9% | -0.3% |
| RY ROYAL BANK OF CANADA | Financials | 88.9K | $14.1M | 0.9% | +511.5% |
| INTU INTUIT INC | Technology | 32.7K | $14.1M | 0.9% | Held |
| VLO VALERO ENERGY CORP | Energy | 55.3K | $13.9M | 0.9% | +598.0% |
| ADI ANALOG DEVICES INC | Technology | 43.4K | $13.2M | 0.9% | Held |
| PSX PHILLIPS 66 | Energy | 71.0K | $13.2M | 0.9% | +594.6% |
| VEEV VEEVA SYSTEMS INC-CLASS A | Technology | 73.8K | $13.1M | 0.9% | +110.3% |
| TRV TRAVELERS COS INC/THE | Financials | 44.2K | $13.0M | 0.8% | Held |
| EA ELECTRONIC ARTS INC | Technology | 62.9K | $12.8M | 0.8% | New |
| FFIV F5 INC | Technology | 43.7K | $12.3M | 0.8% | Held |
| MCD MCDONALD'S CORP | Consumer discretionary | 39.3K | $12.2M | 0.8% | Held |
| MU MICRON TECHNOLOGY INC | Technology | 37.3K | $12.1M | 0.8% | -60.3% |
| HAL HALLIBURTON CO | Energy | 296.0K | $11.7M | 0.8% | +12.4% |
| SLF SUN LIFE FINANCIAL INC | Financials | 186.4K | $11.6M | 0.8% | Held |
| BKNG BOOKING HOLDINGS INC | Industrials | 2.7K | $11.3M | 0.7% | -34.2% |
| HSY HERSHEY CO/THE | Consumer staples | 52.3K | $11.3M | 0.7% | +713.8% |
| COR CENCORA INC | Consumer discretionary | 36.0K | $11.3M | 0.7% | +70.5% |
| EBAY EBAY INC | Services media | 125.9K | $11.2M | 0.7% | Held |
| AME AMETEK INC | Technology | 53.1K | $11.1M | 0.7% | +430.8% |
| IDXX IDEXX LABORATORIES INC | Materials | 19.8K | $11.1M | 0.7% | +826.0% |
| PNR PENTAIR PLC | Industrials | 128.3K | $10.9M | 0.7% | -1.3% |
| CM CAN IMPERIAL BK OF COMMERCE | Financials | 116.2K | $10.8M | 0.7% | Held |
| TD TORONTO-DOMINION BANK | Financials | 115.4K | $10.6M | 0.7% | -58.0% |
| LRCX LAM RESEARCH CORP | Industrials | 51.7K | $10.4M | 0.7% | -55.3% |
| EME EMCOR GROUP INC | Industrials | 14.7K | $10.4M | 0.7% | Held |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 136 | $1.53B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 13, 2026 | 150 | $1.68B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 159 | $1.43B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 6, 2025 | 159 | $1.45B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 13, 2025 | 159 | $1.24B | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 10, 2025 | 202 | $1.48B | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 207 | $1.50B | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 12, 2024 | 159 | $1.13B | canonical | SEC ↗ |
| Q1 2024 | 13F-HR/ARESTATEMENT | Aug 12, 2024 | 160 | $1.16B | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 10, 2024 | 160 | $9.18B | SEC ↗ |
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