Emergent BioSolutions (EBS) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
Emergent BioSolutions insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 7 sold $1.6M of EBS stock on the open market.
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EBS insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | $146K | 2 |
| Q3 2026 | — | 0 | $25K | 1 |
| Q2 2026 | — | 0 | $552K | 8 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | — | 0 | $842K | 5 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 Emergent BioSolutions Inc. insiders reported open-market purchases totaling $0, while 7 insiders reported sales totaling $1.6M. 14 of 16 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 7SEC | Donald W DegolyerDirector | Sell Plan | 17,800111,921 held (−14%) | $7.09 | $126K | -0.4% | — |
| Oct 5SEC | Paul Anthony WilliamsSvp, Products Business | Sell Plan | 3,000156,098 held (−2%) | $6.53 | $20K | +8.1% | — |
| Jul 2SEC | Paul Anthony WilliamsSvp, Products Business | Sell Plan | 3,000159,098 held (−2%) | $8.40 | $25K | -16.0% | — |
| May 4SEC | Kathryn C ZoonDirector | Sell Plan | 16,14580,998 held (−17%) | $8.36 | $135K | -15.6% | — |
| May 4SEC | Keith KatkinDirector | Sell Plan | 15,48196,294 held (−14%) | $8.28 | $128K | -14.7% | — |
| May 4SEC | Donald W DegolyerDirector | Sell Plan | 14,527130,675 held (−10%) | $8.36 | $121K | -15.6% | — |
| May 4SEC | Sujata Tyagi DayalDirector | Sell Plan | 12,781101,543 held (−11%) | $8.36 | $107K | -15.6% | — |
| May 4SEC | Kathryn C ZoonDirector | Sell Plan | 1,05779,941 held (−1%) | $8.97 | $9K | -21.3% | — |
| May 4SEC | Sujata Tyagi DayalDirector | Sell Plan | 980100,563 held (−1%) | $8.94 | $9K | -21.0% | — |
| May 4SEC | Donald W DegolyerDirector | Sell Plan | 954129,721 held (−1%) | $8.96 | $9K | -21.2% | — |
| Apr 3SEC | Paul Anthony WilliamsSvp, Products Business | Sell Plan | 4,00062,681 held (−6%) | $8.44 | $34K | -16.4% | — |
| Dec 9SEC | Ronald RichardDirector | Sell | 14,88498,417 held (−13%) | $11.90 | $177K | -40.7% | — |
| Dec 9SEC | Ronald RichardDirector | Sell | 7,10098,417 held (−7%) | $12.11 | $86K | -41.7% | — |
| Nov 12SEC | Donald W DegolyerDirector | Sell Plan | 17,801119,858 held (−13%) | $10.54 | $188K | -33.0% | — |
| Nov 10SEC | Sujata Tyagi DayalDirector | Sell Plan | 8,55288,980 held (−9%) | $10.00 | $86K | -29.4% | — |
| Oct 16SEC | Coleen GlessnerEvp, Quality & Ethics, And Cpl | Sell Plan | 30,608144,319 held (−17%) | $10.00 | $306K | -29.4% | — |
Insiders at Emergent BioSolutions Inc.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Donald W DegolyerDirector | — | $444K | Oct 7, 2026 | — |
| Coleen GlessnerEvp, Quality & Ethics, And Cpl | — | $306K | Oct 16, 2025 | — |
| Ronald RichardDirector | — | $263K | Dec 9, 2025 | — |
| Sujata Tyagi DayalDirector | — | $201K | May 4, 2026 | — |
| Kathryn C ZoonDirector | — | $144K | May 4, 2026 | — |
| Keith KatkinDirector | — | $128K | May 4, 2026 | — |
| Paul Anthony WilliamsSvp, Products Business | — | $79K | Oct 5, 2026 | — |
EBS stock: common questions
Are Emergent BioSolutions Inc. insiders buying EBS stock?
In the past 12 months, 0 insiders reported open-market purchases of EBS worth $0.
Are Emergent BioSolutions Inc. insiders selling EBS stock?
7 insiders reported sales worth $1.6M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is EBS's 52-week range?
Over the past year EBS has traded between $4.45 and $13.90. It last closed at $7.06 on Oct 9, 2026.