SEB Asset Management AB
PERIOD 2026-Q1 · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q1 13F-HR filing. 13F is disclosed up to 45 days after quarter-end.
About this filer
Profile compiled from public sources (SEC filings and the firm’s own disclosures): 1 cited source.
What a 13F does — and does not — show
These figures come from Form 13F, a quarterly filing that large US institutional managers must submit to the SEC. It is a useful window, but a partial and lagged one, so read it carefully:
- It is a snapshot, up to 45 days old. A 13F shows what a manager held on the last day of a quarter, filed up to 45 days later — the fund may have traded since.
- Long US-listed stocks only. It excludes short positions, cash, bonds, most derivatives, and non-US or private holdings, so it is not the fund’s whole portfolio.
- Reported 13F value is not assets under management. Every share and concentration figure below is a percentage of the reported 13F value only — not the firm’s total assets.
- It describes, it does not recommend. A large or long-held position is not an endorsement, and none of this is investment advice.
Concentration
Share of the largest positions we rank. Long US-listed equity positions as filed; percentages are of reported 13F value, which excludes shorts, cash, non-US and private holdings.
| Tier | Reported value | Share |
|---|---|---|
| Top position | $1.7B | 15.8% |
| Top 5 | $6.1B | 57.1% |
| Top 10 | $8.5B | 79.0% |
Top holdings
| # | Security | Shares | Reported value | % of value |
|---|---|---|---|---|
| 1 | NVDA NVIDIA CORPORATION | 9,706,466 | $1.7B | 7.2% |
| 2 | AAPL APPLE INC | 4,986,398 | $1.3B | 5.4% |
| 3 | AZN ASTRAZENECA PLC | 5,954,417 | $1.2B | 4.9% |
| 4 | MSFT MICROSOFT CORP | 2,712,669 | $1.0B | 4.3% |
| 5 | GOOGL ALPHABET INC | 3,487,934 | $1.0B | 4.3% |
| 6 | AMZN AMAZON COM INC | 3,032,342 | $632M | 2.7% |
| 7 | AVGO BROADCOM INC | 1,911,131 | $592M | 2.5% |
| 8 | META META PLATFORMS INC | 707,960 | $405M | 1.7% |
| 9 | LLY ELI LILLY & CO | 387,272 | $356M | 1.5% |
| 10 | JPM JPMORGAN CHASE & CO | 1,210,826 | $356M | 1.5% |
| 11 | JNJ JOHNSON & JOHNSON | 1,286,484 | $314M | 1.3% |
| 12 | MA MASTERCARD INCORPORATED | 587,548 | $294M | 1.3% |
Sector mix
Reported 13F value by sector, as a share of the largest positions we rank. Sectors come from company reference data joined to each holding. 11% of this value is not classified to a sector and is excluded from the mix. Long US-listed equity positions as filed.
| Sector | Reported value | Share |
|---|---|---|
| Technology | $4.7B | 44.1% |
| Communication Services | $1.4B | 13.1% |
| Healthcare | $1.3B | 12.1% |
| Financial Services | $1.1B | 10.1% |
| Consumer Cyclical | $864M | 8.1% |
| Consumer Defensive | $180M | 1.7% |
How this filer invests
Reproducible measures computed from the positions in this filer’s own 13F filings — not from any outside estimate.
How concentrated the book is
Across 680 reported positions. Shares are of reported 13F value (long US-listed equity), which is not the firm’s total assets. The concentration index (HHI) is the sum of each position’s squared weight — higher means a book concentrated in fewer names.
Frequently asked
What does SEB Asset Management AB own?
SEB Asset Management AB reported 677 long US-listed equity positions worth $23.4B in its 2026-Q1 13F filing. The largest positions and their reported values are listed above.
What changed in SEB Asset Management AB's portfolio last quarter?
The quarter-over-quarter section lists new positions, exits, and the largest adds and trims versus the prior filing, measured on reported value.
Where does this data come from?
Holdings are parsed from SEC Form 13F-HR filings on EDGAR (public filings). 13F is disclosed up to 45 days after quarter-end and reflects long US-listed equity positions only. Informational, not investment advice.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It is filed up to 45 days after quarter-end, so it is backward-looking — the manager may have traded since — and it covers long US-listed equities only, not short positions, cash, or private holdings. Reading a 13F tells you what a manager owned, not whether you should own it.