Institutional Manager · CIK 0002021242
Sienna Gestion
PARIS, I0 · File #028-24127
Latest AUM
$1.68B
Positions
150
Top-10 Concentration
46.8%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | BLACKROCK INC | BLK | +22,859 | +$24.6M | $0 |
| EXITED | BLACKROCK INC | 09290D101 | -22,859 | -$24.3M | $0 |
| NEW | ACCENTURE PLC | ACN | +80,326 | +$21.6M | $0 |
| NEW | TRANE TECHNOLOGIES PLC | TT | +37,952 | +$14.8M | $0 |
| NEW | AERCAP HOLDINGS NV | AER | +99,498 | +$14.3M | $0 |
| NEW | PENTAIR PLC | PNR | +129,969 | +$13.7M | $0 |
| NEW | IBM-INTL BUSIN MACHINES CORP | INTC | +36,780 | +$11.1M | $0 |
| EXITED | INTL BUSINESS MACHINES CORP | 459200101 | -36,780 | -$9.5M | $0 |
| ADD | SERVICENOW INC | NOW | +30,600 | +$4.7M | -$5.2M |
| REDUCE | NVIDIA CORP | NVDA | -22,663 | -$4.2M | +$11.9M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025150 pos · $1.68B
- 13F HOLDINGS REPORTQ/E Sep 2025159 pos · $1.43B
- 13F HOLDINGS REPORTQ/E Jun 2025159 pos · $1.45B
- 13F HOLDINGS REPORTQ/E Mar 2025159 pos · $1.24B
- 13F HOLDINGS REPORTQ/E Dec 2024202 pos · $1.48B
- 13F HOLDINGS REPORTQ/E Sep 2024207 pos · $1.50B
- 13F HOLDINGS REPORTQ/E Jun 2024159 pos · $1.13B
- 13F HOLDINGS REPORT (Amended)Q/E Jun 2024160 pos · $1.16B
- 13F HOLDINGS REPORTQ/E Mar 2024160 pos · $9.18B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | NVIDIA CORP | NVDA | 698,985 | $130.4M | 11.18% |
| 2 | MICROSOFT CORP | MSFT | 230,155 | $111.6M | 9.57% |
| 3 | AMAZON COM INC | AMZN | 286,195 | $66.2M | 5.67% |
| 4 | BROADCOM INC | AVGO | 138,296 | $48.1M | 4.13% |
| 5 | JPMORGAN CHASE & CO | VYLD | 139,237 | $44.8M | 3.84% |
| 6 | CISCO SYSTEMS INC | CSCO | 478,717 | $36.9M | 3.16% |
| 7 | APPLIED MATERIALS INC | 038222105 | 110,397 | $28.6M | 2.45% |
| 8 | MICRON TECHNOLOGY INC | MU | 93,986 | $27.4M | 2.35% |
| 9 | JOHNSON & JOHNSON | JNJ | 129,646 | $26.7M | 2.29% |
| 10 | TORONTO-DOMINION BANK/THE | TORO | 274,559 | $25.9M | 2.22% |
| 11 | BLACKROCK INC | BLK | 22,859 | $24.6M | 2.11% |
| 12 | HOME DEPOT INC/THE | HD | 71,063 | $24.5M | 2.10% |
| 13 | VISA INC | V | 65,308 | $23.0M | 1.97% |
| 14 | BOOKING HOLDINGS INC | BKNG | 4,151 | $22.4M | 1.92% |
| 15 | MANULIFE FINANCIAL CORP | 56501R106 | 604,039 | $22.0M | 1.88% |
| 16 | INTUIT INC | INTU | 32,725 | $21.8M | 1.87% |
| 17 | ELI LILLY & CO | LLY | 20,289 | $21.8M | 1.87% |
| 18 | ACCENTURE PLC | ACN | 80,326 | $21.6M | 1.85% |
| 19 | LAM RESEARCH CORP | LRCX | 115,820 | $20.0M | 1.72% |
| 20 | PROCTER & GAMBLE CO/THE | 742718109 | 137,202 | $19.7M | 1.69% |