SEB Asset Management AB
PERIOD 2026-Q1 (filed 2026-05-07) · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q1 13F-HR filing (filed 2026-05-07). 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 reported portfolio value. 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 | 7.2% |
| Top 5 | $6.1B | 26.2% |
| Top 10 | $8.5B | 36.2% |
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.
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.