BeOne Medicines Ltd.
BeOne Medicines Ltd. (ONC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ONC · as of Mar 31, 2025
Ownership Breakdown
279
Institutional Holders
▲ 42 vs Q4
$11.58B
Total Inst. Value
▲ $3.51B vs Q4
106.86M
Shares Outstanding
freeFloat 62.87%
42.55M
13F Shares Held
▼ 1.15M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ONC largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BAKER BROS. ADVISORS LP pharmaceutical preparations | 8.80M | 8.23% | 8.23% | $2.39T | May 15, 2025 | ▼ 732.8K |
CAPITAL INTERNATIONAL INVESTORS pharmaceutical preparations | 5.09M | 4.76% | 4.76% | $1.38T | May 12, 2025 | ▼ 1.02M |
PRIMECAP MANAGEMENT CO/CA/ pharmaceutical preparations | 5.06M | 4.73% | 4.73% | $1.38T | May 9, 2025 | ▼ 43.4K |
BAILLIE GIFFORD & CO pharmaceutical preparations | 3.63M | 3.40% | 3.40% | $988.17B | May 7, 2025 | ▼ 40.5K |
FMR LLC pharmaceutical preparations | 3.45M | 3.23% | 3.23% | $939.96B | May 12, 2025 | ▲ 1.61M |
PRICE T ROWE ASSOCIATES INC /MD/ pharmaceutical preparations | 2.71M | 2.54% | 2.54% | $738.51B | May 14, 2025 | ▼ 223.8K |
HHLR ADVISORS, LTD. pharmaceutical preparations | 1.03M | 96.73% | 96.73% | $281.51B | May 15, 2025 | ▼ 2.77M |
TEMASEK HOLDINGS (PRIVATE) LTD pharmaceutical preparations | 993.8K | 92.94% | 92.94% | $270.47B | May 16, 2025 | ▼ 531.6K |
CITADEL ADVISORS LLC pharmaceutical preparations | 982.2K | 91.85% | 91.85% | $267.31B | May 15, 2025 | ▲ 665.0K |
PARADIGM BIOCAPITAL ADVISORS LP pharmaceutical preparations | 666.0K | 62.29% | 62.29% | $181.27B | May 15, 2025 | ▲ 50.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
20
Increased
+4.06M shares7
New Positions
first time holders21
Decreased
−6.19M shares0
Sold Out
fully exitedNet shares change (top 50)
2.13M
+4.06M / −6.19M
Net new holders
+6
7 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ONC insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
6
Buy transactions
8
Sell transactions
0.75
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Riva Alessandro director | May 22, 2026 | Sale | 212 | $309.51 | $65.6K | 0 | Form 4 ↗ |
Dugan Margaret director | May 22, 2026 | Sale | 212 | $309.60 | $65.6K | 0 | Form 4 ↗ |
Sanders Corazon (Corsee) D. director | May 22, 2026 | Sale | 212 | $309.59 | $65.6K | 0 | Form 4 ↗ |
BAKER BROS. ADVISORS LP director | May 22, 2026 | Sale | 2,743 | $23.85 | $65.4K | 145.3K | Form 4 ↗ |
BAKER BROS. ADVISORS LP director | May 22, 2026 | Sale | 2,743 | $23.85 | $65.4K | 145.3K | Form 4 ↗ |
BAKER BROS. ADVISORS LP director | May 22, 2026 | Sale | 2,756 | $23.79 | $65.6K | 142.6K | Form 4 ↗ |
BAKER BROS. ADVISORS LP director | May 22, 2026 | Sale | 2,756 | $23.79 | $65.6K | 142.6K | Form 4 ↗ |
Lee Chan Henry SVP, General Counsel | May 13, 2026 | Sale | 332 | $310.72 | $103.2K | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
BeOne Medicines Ltd. (ONC) is primarily owned by institutional investors, who hold approximately 39.8% of total shares outstanding. Company insiders own approximately 37.13%, while retail and public investors account for the remaining 23.05%.
The largest institutional shareholder of BeOne Medicines Ltd. is BAKER BROS. ADVISORS LP, holding approximately 8.80 million shares — equal to 8.23% of outstanding shares — as of March 31, 2025.
A total of 279 institutional investors currently hold ONC stock, with a combined institutional value of approximately $11.58 billion as of the most recent 13F filing period.
Frequently asked questions
ONC ownershipBeOne Medicines Ltd. (ONC) is primarily owned by institutional investors, who hold approximately 39.8% of shares. The largest shareholder is BAKER BROS. ADVISORS LP with a 8.23% stake. Company insiders hold 37.13%. Data sourced from SEC Form 13F as of March 31, 2025.