Sienna Gestion holds a diversified book of 136 stocks worth $1.5B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened BlackRock Inc and trimmed Broadcom Inc. Their largest long position is Nvidia Corp at 8% of the equity book.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/2021242/holdings"
Use Arkolith to show Sienna Gestion's latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
99% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Other tracked managers holding the same core names as Sienna Gestion
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| VANGUARD GROUP INC | 79 / 80 | $2.4T |
| BlackRock, Inc. | 79 / 80 | $1.9T |
| VANGUARD CAPITAL MANAGEMENT LLC | 79 / 80 | $1.5T |
| FMR LLC | 79 / 80 | $576.7B |
| GEODE CAPITAL MANAGEMENT, LLC | 79 / 80 | $570.7B |
| JPMORGAN CHASE & CO | 79 / 80 | $389.6B |
| MORGAN STANLEY | 79 / 80 | $389.5B |
| NORTHERN TRUST CORP | 79 / 80 | $241.4B |
Ranked by how many of Sienna Gestion's top 80 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Nvidia Corp COM | $116.9M | 702.3K | 7.6% | ▲+0.5% Added · +3K sh | |
| 2 | Apple Inc COM | $95.0M | 382.6K | 6.2% | ▲11× Added · +349K sh | |
| 3 | Microsoft Corp COM | $83.7M | 231.5K | 5.5% | ▲+0.6% Added · +1K sh | |
| 4 | Broadcom Inc COM | $36.5M | 123.5K | 2.4% | ▼−11% Reduced · −15K sh | |
| 5 | Tesla Inc COM | $28.4M | 79.3K | 1.9% | ▲11× Added · +72K sh | |
| 6 | JPMorgan Chase & Co COM | $27.0M | 94.6K | 1.8% | ▼−32% Reduced · −45K sh | |
| 7 | Cisco Systems Inc COM | $26.2M | 338.2K | 1.7% | ▼−29% Reduced · −140K sh | |
| 8 | Aercap Holdings NV SHS | $23.9M | 179.7K | 1.6% | ▲+81% Added · +80K sh | |
| 9 | Atmos Energy Corp COM | $23.7M | 127.0K | 1.5% | ▲+125% Added · +71K sh | |
| 10 | Home Depot Inc COM | $23.3M | 71.4K | 1.5% | ▲+0.5% Added · +362 sh | |
| 11 | Verizon Communications Inc COM | $21.8M | 430.6K | 1.4% | ▲+39% Added · +120K sh | |
| 12 | BlackRock Inc COM | $21.5M | 22.9K | 1.4% | ▲New New position | |
| 13 | Eli Lilly & Co COM | $21.2M | 23.7K | 1.4% | ▲+17% Added · +3K sh | |
| 14 | Manulife Financial Corp COM | $20.5M | 604.0K | 1.3% | —Held | |
| 15 | Mastercard Inc CL A | $20.3M | 40.7K | 1.3% | ▲24× Added · +39K sh | |
| 16 | Procter & Gamble Co COM | $20.1M | 138.0K | 1.3% | ▲+0.6% Added · +759 sh | |
| 17 | Applied Materials Inc COM | $19.2M | 58.9K | 1.2% | ▼−47% Reduced · −52K sh | |
| 18 | Western Digital Corp COM | $17.1M | 67.3K | 1.1% | ▼−22% Reduced · −19K sh | |
| 19 | General Dynamics Corp COM | $16.5M | 48.0K | 1.1% | ▲+655% Added · +42K sh | |
| 20 | Agnico Eagle Mines Ltd COM | $16.0M | 82.9K | 1.0% | ▼−1.8% Reduced · −2K sh | |
| 21 | Accenture PLC SHS CLASS A | $16.0M | 80.3K | 1.0% | —Held | |
| 22 | Trane Technologies PLC SHS | $15.4M | 38.0K | 1.0% | —Held | |
| 23 | State Street Corp COM | $15.4M | 123.7K | 1.0% | —Held | |
| 24 | Bank NY Mellon Corp COM | $15.2M | 130.8K | 1.0% | —Held | |
| 25 | Wabtec Corp COM | $15.1M | 63.1K | 1.0% | —Held | |
| 26 | Ameriprise Financial Inc COM | $14.6M | 33.0K | 0.9% | ▼−0.3% Reduced · −110 sh | |
| 27 | Royal Bank Of Canada COM | $14.1M | 88.9K | 0.9% | ▲+512% Added · +74K sh | |
| 28 | Intuit Inc COM | $14.1M | 32.7K | 0.9% | —Held | |
| 29 | Valero Energy Corp COM | $13.9M | 55.3K | 0.9% | ▲+598% Added · +47K sh | |
| 30 | Analog Devices Inc COM | $13.2M | 43.4K | 0.9% | —Held | |
| 31 | Phillips 66 COM | $13.2M | 71.0K | 0.9% | ▲+595% Added · +61K sh | |
| 32 | Veeva Systems Inc CL A COM | $13.1M | 73.8K | 0.9% | ▲+110% Added · +39K sh | |
| 33 | Travelers Cos Inc COM | $13.0M | 44.2K | 0.8% | —Held | |
| 34 | Electronic Arts Inc COM | $12.8M | 62.9K | 0.8% | ▲New New position | |
| 35 | F5 Inc COM | $12.3M | 43.7K | 0.8% | —Held | |
| 36 | McDonald S Corp COM | $12.2M | 39.3K | 0.8% | —Held | |
| 37 | Micron Technology Inc COM | $12.1M | 37.3K | 0.8% | ▼−60% Reduced · −57K sh | |
| 38 | Halliburton Co COM | $11.7M | 296.0K | 0.8% | ▲+12% Added · +33K sh | |
| 39 | Sun Life Financial Inc COM | $11.6M | 186.4K | 0.8% | —Held | |
| 40 | Booking Holdings Inc COM | $11.3M | 2.7K | 0.7% | ▼−34% Reduced · −1K sh | |
| 41 | Hershey Co COM | $11.3M | 52.3K | 0.7% | ▲+714% Added · +46K sh | |
| 42 | Cencora Inc COM | $11.3M | 36.0K | 0.7% | ▲+71% Added · +15K sh | |
| 43 | Ebay Inc COM | $11.2M | 125.9K | 0.7% | —Held | |
| 44 | Ametek Inc COM | $11.1M | 53.1K | 0.7% | ▲+431% Added · +43K sh | |
| 45 | Idexx Laboratories Inc COM | $11.1M | 19.8K | 0.7% | ▲+826% Added · +18K sh | |
| 46 | Pentair PLC SHS | $10.9M | 128.3K | 0.7% | ▼−1.3% Reduced · −2K sh | |
| 47 | Canadian Imperial Bank Of Comm COM | $10.8M | 116.2K | 0.7% | —Held | |
| 48 | Toronto-Dominion Bank COM NEW | $10.6M | 115.4K | 0.7% | ▼−58% Reduced · −159K sh | |
| 49 | Prologis Inc COM | $10.6M | 81.9K | 0.7% | —Held | |
| 50 | Lam Research Corp COM NEW | $10.4M | 51.7K | 0.7% | ▼−55% Reduced · −64K sh |
As-of date vs the date the SEC received each filing
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.