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Emergent BioSolutions (EBS) EVP Stephanie Duatschek details stock and option holdings

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Rhea-AI Filing Summary

Emergent BioSolutions Inc. reported the initial equity holdings of executive vice president and chief growth officer Stephanie Duatschek. She holds 197,416 shares of common stock, consisting of 55,639 shares and 141,777 unvested RSUs that generally vest in three equal annual installments. She also holds several employee stock options on common stock, with exercise prices ranging from $2.33 to $59.07 per share and expiration dates between 2028 and 2033. For options granted in 2021–2025, all or a portion of the underlying shares are already vested and exercisable as described in the footnotes.

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Insider Duatschek Stephanie
Role EVP, CGO
Type Security Shares Price Value
holding Employee Stock Option (Right to buy) F2 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F3 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F4 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F5 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F6 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F7 -- -- --
holding Employee Stock Option (Right to buy) (Common Stock) F8 -- -- --
holding Common Stock F1 -- -- --
Holdings After Transaction: Employee Stock Option (Right to buy) — 6,772 shares (Direct); Employee Stock Option (Right to buy) (Common Stock) — 251,123 shares (Direct); Common Stock — 197,416 shares (Direct)
Footnotes (8)
  1. F1. Consists of 55,639 shares of common stock and 141,777 unvested RSUs from the Emergent Stock Incentive Plan. Each RSU represents a right to receive one share of common stock. The RSUs vest in three equal installments annually on the day prior to the anniversary date of the grant.
  2. F2. Granted on July 9, 2021 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
  3. F3. Granted on March 1, 2022 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
  4. F4. Granted on March 6, 2023 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
  5. F5. Granted on June 9, 2023 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
  6. F6. Granted on March 13, 2024 and vests in three installments beginning on the day prior to the anniversary date of the grant. As of the date of this filing, 83,250 of the shares underlying the option are vested and exercisable.
  7. F7. Granted on March 6, 2025 and vests in three installments beginning on the day prior to the anniversary date of the grant. As of the date of this filing, 20,813 of the shares underlying the option are vested and exercisable.
  8. F8. Granted on March 3, 2026 and vests in three installments beginning on the day prior to the anniversary date of the grant.
Total common stock beneficially owned 197,416 shares Direct and RSU-based holdings reported for Stephanie Duatschek
Direct common shares 55,639 shares Portion of total holdings classified as common stock
Unvested RSUs 141,777 RSUs Rights to receive common stock under Emergent Stock Incentive Plan
Option exercise price (2021 grant) $59.07 per share Employee stock option expiring July 8, 2028 on 6,772 underlying shares
Largest option grant 125,000 shares at $2.33 Employee stock option expiring March 12, 2031, partially vested
Option grant 2025 62,500 shares at $5.80 Employee stock option expiring March 5, 2032, partially vested
Recent option grant 2026 44,834 shares at $8.99 Employee stock option expiring March 2, 2033, three-installment vesting
Restricted Stock Unit financial
"Consists of 55,639 shares of common stock and 141,777 unvested RSUs..."
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
Emergent Stock Incentive Plan financial
"...141,777 unvested RSUs from the Emergent Stock Incentive Plan."
Employee Stock Option (Right to buy) financial
"Employee Stock Option (Right to buy) (Common Stock)..."
vested and exercisable financial
"all of the shares underlying the option are vested and exercisable."

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What does Emergent BioSolutions (EBS) report about Stephanie Duatschek’s stock ownership?

The filing reports that Stephanie Duatschek, EVP and CGO of Emergent BioSolutions, beneficially owns 197,416 shares of common stock, including both directly held shares and unvested RSUs, plus multiple employee stock option grants on common stock.

How many Emergent BioSolutions (EBS) shares and RSUs does Stephanie Duatschek hold?

She holds 55,639 shares of common stock and 141,777 unvested RSUs under the Emergent Stock Incentive Plan. Each RSU represents the right to receive one share of common stock, generally vesting in three equal annual installments.

What stock options on EBS common stock does Stephanie Duatschek have?

She holds several employee stock options on EBS common stock with exercise prices from $2.33 to $59.07 per share and expiration dates between 2028 and 2033, covering underlying share amounts from 2,308 to 125,000 shares.

How many Emergent BioSolutions (EBS) shares are vested for Stephanie Duatschek’s options granted in 2021 and 2022?

The options granted on July 9, 2021 and March 1, 2022 are, as of the filing date, fully vested and exercisable for all underlying shares specified for those grants.

What is the largest single EBS option grant held by Stephanie Duatschek?

Her largest grant is an employee stock option with an exercise price of $2.33 per share, expiring March 12, 2031, covering 125,000 underlying shares of Emergent BioSolutions common stock, a portion of which is already vested and exercisable.

How are Stephanie Duatschek’s more recent EBS option grants structured to vest?

Options granted on March 13, 2024, March 6, 2025, and March 3, 2026 vest in three installments, beginning on the day prior to each grant’s anniversary; substantial portions of the 2024 and 2025 grants are already vested and exercisable.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Duatschek Stephanie

(Last)(First)(Middle)
300 PROFESSIONAL DRIVE

(Street)
GAITHERSBURG MARYLAND 20879

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
08/05/2026
3. Issuer Name and Ticker or Trading Symbol
Emergent BioSolutions Inc. [ EBS ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP, CGO
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock197,416(1)D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to buy) (2)07/08/2028Common Stock6,772$59.07D
Employee Stock Option (Right to buy) (Common Stock) (3)02/28/2029Common Stock7,250$41.38D
Employee Stock Option (Right to buy) (Common Stock) (4)03/05/2030Common Stock2,308$11.66D
Employee Stock Option (Right to buy) (Common Stock) (5)06/08/2030Common Stock9,231$8.39D
Employee Stock Option (Right to buy) (Common Stock) (6)03/12/2031Common Stock125,000$2.33D
Employee Stock Option (Right to buy) (Common Stock) (7)03/05/2032Common Stock62,500$5.8D
Employee Stock Option (Right to buy) (Common Stock) (8)03/02/2033Common Stock44,834$8.99D
Explanation of Responses:
1. Consists of 55,639 shares of common stock and 141,777 unvested RSUs from the Emergent Stock Incentive Plan. Each RSU represents a right to receive one share of common stock. The RSUs vest in three equal installments annually on the day prior to the anniversary date of the grant.
2. Granted on July 9, 2021 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
3. Granted on March 1, 2022 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
4. Granted on March 6, 2023 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
5. Granted on June 9, 2023 and as of the date of this filing all of the shares underlying the option are vested and exercisable.
6. Granted on March 13, 2024 and vests in three installments beginning on the day prior to the anniversary date of the grant. As of the date of this filing, 83,250 of the shares underlying the option are vested and exercisable.
7. Granted on March 6, 2025 and vests in three installments beginning on the day prior to the anniversary date of the grant. As of the date of this filing, 20,813 of the shares underlying the option are vested and exercisable.
8. Granted on March 3, 2026 and vests in three installments beginning on the day prior to the anniversary date of the grant.
Remarks:
Exhibit list: Ex 24.1 - Power of Attorney
/s/ Richard S. Lindahl, Attorney-in-fact08/12/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)