Burnham & Co LLC
PERIOD 2026-Q2 (filed 2026-08-11) · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q2 13F-HR filing (filed 2026-08-11). 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 | $10M | 7.9% |
| Top 5 | $36M | 29.2% |
| Top 10 | $59M | 47.7% |
Top holdings
| # | Security | Shares | Reported value | % of value |
|---|---|---|---|---|
| 1 | LLY ELI LILLY & CO | 8,117 | $10M | 7.9% |
| 2 | LEU CENTRUS ENERGY CORP | 42,502 | $7M | 5.8% |
| 3 | ICLR ICON PUB LTD CO | 39,507 | $7M | 5.5% |
| 4 | NVDA NVIDIA CORPORATION | 32,199 | $6M | 5.2% |
| 5 | AMZN AMAZON COM INC | 25,203 | $6M | 4.8% |
| 6 | MSFT MICROSOFT CORP | 14,386 | $5M | 4.3% |
| 7 | GSST GOLDMAN SACHS ETF TR | 96,046 | $5M | 3.9% |
| 8 | AAPL APPLE INC | 16,745 | $5M | 3.9% |
| 9 | HNI HNI CORP | 99,589 | $4M | 3.2% |
| 10 | UPS UNITED PARCEL SVCS INC | 35,746 | $4M | 3.1% |
| 11 | SYK STRYKER CORPORATION | 12,107 | $4M | 3.1% |
| 12 | GOOGL ALPHABET INC | 10,055 | $4M | 2.9% |
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 |
|---|---|---|
| Healthcare | $26M | 30.1% |
| Technology | $19M | 22.2% |
| Industrials | $8M | 9.2% |
| Energy | $7M | 8.4% |
| Utilities | $6M | 7.5% |
| Consumer Cyclical | $6M | 7.1% |
| Communication Services | $4M | 4.2% |
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 197 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 Burnham & Co LLC own?
Burnham & Co LLC reported 196 long US-listed equity positions worth $124M 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.