Boussard & Gavaudan Gestion Sas
PERIOD 2026-Q2 (filed 2026-08-19) · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q2 13F-HR filing (filed 2026-08-19). 13F is disclosed up to 45 days after quarter-end.
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 | $752M | 38.0% |
| Top 5 | $1.2B | 62.8% |
| Top 10 | $1.5B | 74.9% |
Top holdings
| # | Security | Shares | Reported value | % of value |
|---|---|---|---|---|
| 1 | WDC WESTERN DIGITAL CORP | 44,500 | $752M | 38.0% |
| 2 | SPY STATE STR SPDR S&P 500 ETF T | 390,000 | $291M | 14.7% |
| 3 | WBD WARNER BROS DISCOVERY INC | 2,652,642 | $71M | 3.6% |
| 4 | EA ELECTRONIC ARTS INC | 326,439 | $67M | 3.4% |
| 5 | GH GUARDANT HEALTH INC | 23,950 | $60M | 3.0% |
| 6 | CHEFS WHSE INC | 22,976 | $52M | 2.6% |
| 7 | BBIO BRIDGEBIO PHARMA INC | 29,000 | $51M | 2.6% |
| 8 | MKSI MKS INC. | 16,154 | $47M | 2.4% |
| 9 | ON ON SEMICONDUCTOR CORP | 25,835 | $47M | 2.4% |
| 10 | NSC NORFOLK SOUTHN CORP | 135,885 | $43M | 2.2% |
| 11 | POST POST HLDGS INC | 30,000 | $31M | 1.6% |
| 12 | ALNY ALNYLAM PHARMACEUTICALS INC | 24,763 | $30M | 1.5% |
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. 23% 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 | $866M | 50.4% |
| Healthcare | $186M | 10.8% |
| Communication Services | $138M | 8.0% |
| Industrials | $43M | 2.5% |
| Financial Services | $42M | 2.4% |
| Consumer Defensive | $31M | 1.8% |
| Utilities | $16M | 0.9% |
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 95 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 Boussard & Gavaudan Gestion Sas own?
Boussard & Gavaudan Gestion Sas reported 92 long US-listed equity positions worth $2.0B in its 2026-Q2 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.