Institutional Manager · CIK 0001546007
Assenagon Asset Management S.A.
SENNINGERBERG, N4 · File #028-17984
Latest AUM
$72.64B
Positions
1,143
Top-10 Concentration
57.6%
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 | ALPHABET INC | GOOG | -3,097,738 | -$972.1M | +$689.0M |
| ADD | COSTCO WHSL CORP NEW | 22160K105 | +1,070,005 | +$922.7M | -$4.3M |
| REDUCE | LINDE PLC | LIN | -1,668,478 | -$711.4M | -$81.8M |
| ADD | ADVANCED MICRO DEVICES INC | AMD | +3,059,935 | +$655.3M | +$153.5M |
| ADD | APPLE INC | AAPL | +2,365,518 | +$643.1M | +$284.1M |
| REDUCE | JOHNSON & JOHNSON | JNJ | -3,071,786 | -$635.7M | +$95.6M |
| ADD | MERCADOLIBRE INC | MELI | +296,543 | +$597.3M | -$11.9M |
| ADD | PDD HOLDINGS INC | PDD | +5,070,827 | +$575.0M | -$31.1M |
| ADD | NETFLIX INC | NFLX | +5,658,740 | +$530.6M | -$636.1M |
| REDUCE | MERCK & CO INC | MRK | -4,955,092 | -$521.6M | +$117.2M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 20251,143 pos · $72.64B
- 13F HOLDINGS REPORTQ/E Sep 20251,160 pos · $73.12B
- 13F HOLDINGS REPORTQ/E Jun 20251,148 pos · $67.36B
- 13F HOLDINGS REPORTQ/E Mar 20251,144 pos · $59.95B
- 13F HOLDINGS REPORTQ/E Dec 20241,306 pos · $62.00B
- 13F HOLDINGS REPORTQ/E Sep 20241,358 pos · $54.34B
- 13F HOLDINGS REPORTQ/E Jun 20241,403 pos · $44.92B
- 13F HOLDINGS REPORTQ/E Mar 20241,350 pos · $42.25B
- 13F HOLDINGS REPORTQ/E Dec 20231,371 pos · $32.30B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | MICROSOFT CORP | MSFT | 10,756,943 | $5.20B | 11.29% |
| 2 | APPLE INC | AAPL | 18,853,552 | $5.13B | 11.13% |
| 3 | AMAZON COM INC | AMZN | 20,306,055 | $4.69B | 10.18% |
| 4 | NVIDIA CORPORATION | NVDA | 20,887,453 | $3.90B | 8.46% |
| 5 | ALPHABET INC | GOOG | 6,710,414 | $2.11B | 4.57% |
| 6 | BANK AMERICA CORP | 060505954 | 23,330,000 | $1.28B | 2.79% |
| 7 | ADVANCED MICRO DEVICES INC | AMD | 5,991,297 | $1.28B | 2.79% |
| 8 | TESLA INC | TSLA | 2,209,375 | $993.6M | 2.16% |
| 9 | COSTCO WHSL CORP NEW | 22160K105 | 1,137,436 | $980.9M | 2.13% |
| 10 | CITIGROUP INC | C-PR | 8,270,000 | $965.0M | 2.10% |
| 11 | APPLE INC | AAPL | 3,500,000 | $951.5M | 2.07% |
| 12 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 1,780,234 | $894.8M | 1.94% |
| 13 | INTUITIVE SURGICAL INC | ISRG | 1,533,771 | $868.7M | 1.89% |
| 14 | PROCTER AND GAMBLE CO | 742718109 | 5,460,939 | $782.6M | 1.70% |
| 15 | ALPHABET INC | GOOG | 2,473,235 | $774.1M | 1.68% |
| 16 | PDD HOLDINGS INC | PDD | 6,728,909 | $763.0M | 1.66% |
| 17 | JPMORGAN CHASE & CO. | VYLD | 2,132,000 | $687.0M | 1.49% |
| 18 | ABBVIE INC | ABBV | 2,957,880 | $675.8M | 1.47% |
| 19 | TEXAS INSTRS INC | 882508104 | 3,890,945 | $675.0M | 1.47% |
| 20 | MERCADOLIBRE INC | MELI | 333,455 | $671.7M | 1.46% |