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Emergent BioSolutions Inc. (EBS)

Emergent BioSolutions Inc. (EBS) Insider Trading

Directors, officers and holders of more than 10% of EBS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 144 transactions on file: 0 with code P, 11 with code S and 39 with other codes.

DateInsiderCodeShares
Oct 7, 2026DeGolyer Donald WS Sale17,800
Oct 1, 2026Williams Paul AnthonyS Sale3,000
Jul 1, 2026Williams Paul AnthonyS Sale3,000
Jun 8, 2026Glessner ColeenF Tax Payment2,018
Jun 8, 2026LINDAHL RICHARD SF Tax Payment3,964
Jun 8, 2026Hartzel WilliamF Tax Payment1,741
Jun 8, 2026Williams Paul AnthonyF Tax Payment694
May 1, 2026Dayal Sujata TyagiS Sale12,781
May 1, 2026DeGolyer Donald WS Sale14,527
May 1, 2026Zoon Kathryn CS Sale1,057
May 1, 2026DeGolyer Donald WS Sale954
May 1, 2026Zoon Kathryn CS Sale16,145
May 1, 2026Dayal Sujata TyagiS Sale980
Apr 30, 2026Harsanyi ZsoltA Award11,296
Apr 30, 2026Zoon Kathryn CA Award11,296
Apr 30, 2026DeGolyer Donald WA Award25,344
Apr 30, 2026DeGolyer Donald WA Award11,296
Apr 30, 2026Katkin KeithA Award11,296
Apr 30, 2026Richard RonaldA Award11,296
Apr 30, 2026Harsanyi ZsoltA Award25,344
Apr 30, 2026Dayal Sujata TyagiA Award11,296
Apr 30, 2026White Marvin LA Award11,296
Apr 30, 2026Katkin KeithA Award25,344
Apr 30, 2026Richard RonaldA Award25,344
Apr 30, 2026FOWLER JOHN D JRA Award11,296
Apr 30, 2026FOWLER JOHN D JRA Award25,344
Apr 30, 2026Fowler Neal FranklinA Award25,344
Apr 30, 2026Katkin KeithS Sale15,481
Apr 30, 2026Dayal Sujata TyagiA Award25,344
Apr 30, 2026Fowler Neal FranklinA Award11,296
Apr 30, 2026White Marvin LA Award25,344
Apr 30, 2026Zoon Kathryn CA Award25,344
Apr 29, 2026Glessner ColeenA Award100,111
Apr 29, 2026Williams Paul AnthonyA Award100,111
Apr 29, 2026Lowry Simon CA Award100,111
Apr 29, 2026Hartzel WilliamA Award100,111
Apr 29, 2026LINDAHL RICHARD SA Award162,680
Apr 29, 2026Perl JessicaA Award104,282
Apr 29, 2026PAPA JOSEPH CA Award187,708
Apr 1, 2026Williams Paul AnthonyS Sale4,000
Mar 5, 2026Glessner ColeenF Tax Payment8,199
Mar 5, 2026PAPA JOSEPH CF Tax Payment37,055
Mar 5, 2026LINDAHL RICHARD SF Tax Payment23,650
Mar 5, 2026Williams Paul AnthonyF Tax Payment9,397
Mar 5, 2026Lowry Simon CF Tax Payment10,636
Mar 5, 2026Hartzel WilliamF Tax Payment9,493
Mar 5, 2026Perl JessicaF Tax Payment6,465
Mar 3, 2026Hartzel WilliamA Award44,834
Mar 3, 2026Perl JessicaA Award46,702
Mar 3, 2026Lowry Simon CA Award44,834

The full Form 4 history is on the EBS company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.