Emergent Biosolutions Inc
Ownership
Ownership Structure
Who owns Emergent Biosolutions Inc (EBS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.7% of the shares are freely tradable; institutional investors hold 86.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.20 | 4,716,599 | +8.6 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 6.00 | 3,076,646 | +11.6 | 06/30/2026 |
| State Street Corp | 5.71 | 2,929,238 | +2.8 | 06/30/2026 |
| American Century Companies Inc | 5.40 | 2,770,448 | +14.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.29 | 2,198,839 | -2.6 | 06/30/2026 |
| LSV Asset Management | 3.31 | 1,695,851 | +89.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Avantis US Small Cap Value ETF | 5.71 | 2,930,153 | +0.2 | 09/30/2026 |
| State Street® SPDR® S&P® Biotech ETF | 3.17 | 1,626,160 | -1.9 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.03 | 1,554,116 | +0.0 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.71 | 1,389,590 | -1.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Williams Paul Anthony | SVP, Products Business | 156,098 | 1,061,466 $ | Oct 1, 2026 | direct |
| DeGolyer Donald W | Director | 111,921 | 761,063 $ | Oct 7, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 7, 2026 | DeGolyer Donald W | Director | Sell | 17,800 | 7.09 | 126,202 |
| Oct 1, 2026 | Williams Paul Anthony | SVP, Products Business | Sell | 3,000 | 6.53 | 19,590 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.