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 Sep 30, 2025
Ownership Breakdown
281
Institutional Holders
▲ 27 vs Q2
$11.23B
Total Inst. Value
▲ $2.89B vs Q2
106.86M
Shares Outstanding
freeFloat 62.87%
33.00M
13F Shares Held
▼ 1.45M vs Q2
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
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BAKER BROS. ADVISORS LP pharmaceutical preparations | 8.80M | 7.98% | 7.98% | $3.00T | Nov 14, 2025 | — held |
PRIMECAP MANAGEMENT CO/CA/ pharmaceutical preparations | 5.08M | 4.61% | 4.61% | $1.73T | Nov 12, 2025 | ▼ 7.8K |
CAPITAL INTERNATIONAL INVESTORS pharmaceutical preparations | 5.05M | 4.58% | 4.58% | $1.72T | Nov 13, 2025 | ▲ 161.1K |
FMR LLC pharmaceutical preparations | 3.78M | 3.43% | 3.43% | $1.29T | Nov 13, 2025 | ▲ 335.1K |
PRICE T ROWE ASSOCIATES INC /MD/ pharmaceutical preparations | 1.63M | 1.48% | 1.48% | $555.54B | Nov 14, 2025 | ▲ 610.4K |
HHLR ADVISORS, LTD. pharmaceutical preparations | 1.03M | 93.84% | 93.84% | $352.39B | Nov 14, 2025 | — held |
TEMASEK HOLDINGS (PRIVATE) LTD pharmaceutical preparations | 1.01M | 91.77% | 91.77% | $344.61B | Nov 14, 2025 | ▲ 999 |
BLACKROCK, INC. pharmaceutical preparations | 496.1K | 45.01% | 45.01% | $169.02B | Nov 12, 2025 | ▼ 5.1K |
SIREN, L.L.C. pharmaceutical preparations | 493.0K | 44.73% | 44.73% | $167.96B | Nov 13, 2025 | ▼ 17.0K |
MORGAN STANLEY pharmaceutical preparations | 353.3K | 32.05% | 32.05% | $120.37B | May 27, 2026 | ▲ 84.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
21
Increased
+1.55M shares5
New Positions
first time holders21
Decreased
−1.28M shares0
Sold Out
fully exitedNet shares change (top 50)
+262.3K
+1.55M / −1.28M
Net new holders
+5
5 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 30.9% of total shares outstanding. Company insiders own approximately 37.13%, while retail and public investors account for the remaining 31.99%.
The largest institutional shareholder of BeOne Medicines Ltd. is BAKER BROS. ADVISORS LP, holding approximately 8.80 million shares — equal to 7.98% of outstanding shares — as of September 30, 2025.
A total of 281 institutional investors currently hold ONC stock, with a combined institutional value of approximately $11.23 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 30.9% of shares. The largest shareholder is BAKER BROS. ADVISORS LP with a 7.98% stake. Company insiders hold 37.13%. Data sourced from SEC Form 13F as of September 30, 2025.