Institutional Manager · CIK 0001767471
OSSIAM
Paris, I0 · File #028-19252
Latest AUM
$5.01B
Positions
388
Top-10 Concentration
64.1%
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 |
|---|---|---|---|---|---|
| REDUCE | NVIDIA CORPORATION | NVDA | -1,564,686 | -$291.8M | -$236,927 |
| EXITED | INTEL CORP | 458140100 | -8,297,973 | -$278.4M | $0 |
| EXITED | MICROSOFT CORP | 594918104 | -499,779 | -$258.9M | $0 |
| REDUCE | APPLE INC | AAPL | -745,895 | -$202.8M | +$27.9M |
| ADD | ADVANCED MICRO DEVICES INC | AMD | +631,351 | +$135.2M | +$115.9M |
| ADD | BERKSHIRE HATHAWAY INC DEL | BRK-A | +171,262 | +$86.1M | -$71,690 |
| EXITED | STRATEGY INC | 594972408 | -247,410 | -$79.7M | $0 |
| REDUCE | AMAZON COM INC | AMZN | -313,412 | -$72.3M | +$17.8M |
| REDUCE | BROADCOM INC | AVGO | -208,386 | -$72.1M | +$6.2M |
| EXITED | CADENCE DESIGN SYSTEM INC | 127387108 | -194,824 | -$68.4M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025388 pos · $5.01B
- 13F HOLDINGS REPORTQ/E Sep 2025694 pos · $7.77B
- 13F HOLDINGS REPORTQ/E Jun 2025641 pos · $8.89B
- 13F HOLDINGS REPORTQ/E Mar 2025617 pos · $7.16B
- 13F HOLDINGS REPORTQ/E Dec 2024623 pos · $5.79B
- 13F HOLDINGS REPORTQ/E Sep 2024640 pos · $5.17B
- 13F HOLDINGS REPORTQ/E Jun 2024639 pos · $5.28B
- 13F HOLDINGS REPORTQ/E Mar 2024626 pos · $5.71B
- 13F HOLDINGS REPORTQ/E Dec 2023665 pos · $5.66B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ADVANCED MICRO DEVICES INC | AMD | 2,844,979 | $609.3M | 14.33% |
| 2 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 967,816 | $486.5M | 11.44% |
| 3 | TESLA INC | TSLA | 1,037,376 | $466.5M | 10.97% |
| 4 | AMAZON COM INC | AMZN | 1,266,900 | $292.4M | 6.88% |
| 5 | NVIDIA CORPORATION | NVDA | 1,396,917 | $260.5M | 6.13% |
| 6 | APPLE INC | AAPL | 873,312 | $237.4M | 5.58% |
| 7 | ADOBE INC | ADBE | 327,057 | $114.5M | 2.69% |
| 8 | PALANTIR TECHNOLOGIES INC | PLTR | 547,567 | $97.3M | 2.29% |
| 9 | COSTCO WHSL CORP NEW | 22160K105 | 104,156 | $89.8M | 2.11% |
| 10 | ALPHABET INC | GOOG | 221,307 | $69.4M | 1.63% |
| 11 | PAYPAL HLDGS INC | PYPL | 1,165,704 | $68.1M | 1.60% |
| 12 | FLUTTER ENTMT PLC | G3643J108 | 313,499 | $67.4M | 1.59% |
| 13 | CROWDSTRIKE HLDGS INC | CRWD | 135,336 | $63.4M | 1.49% |
| 14 | MONGODB INC | MDB | 151,101 | $63.4M | 1.49% |
| 15 | BROADCOM INC | AVGO | 175,014 | $60.6M | 1.42% |
| 16 | MERCADOLIBRE INC | MELI | 29,910 | $60.2M | 1.42% |
| 17 | UBER TECHNOLOGIES INC | UBER | 716,683 | $58.6M | 1.38% |
| 18 | MASTERCARD INCORPORATED | MA | 97,139 | $55.5M | 1.30% |
| 19 | FORTINET INC | FTNT | 691,803 | $54.9M | 1.29% |
| 20 | ULTA BEAUTY INC | ULTA | 86,747 | $52.5M | 1.23% |