STOCK TITAN

Emergent BioSolutions (NYSE: EBS) director nets stock awards, tax-driven share sales

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Emergent BioSolutions director Sujata Tyagi reported a mix of stock awards and tax-related sales. On April 30, 2026, she received an annual grant of 25,344 restricted stock units and 11,296 stock options with a $7.99 exercise price, vesting in one year for continued board service. On May 1, 2026, she sold a total of 13,761 common shares in open-market trades at weighted average prices around the $8–$9 range under a pre-arranged Rule 10b5-1 trading plan to cover taxes from RSU vesting. Following these transactions, she continues to directly hold 100,563 common shares of Emergent BioSolutions.

Positive

  • None.

Negative

  • None.
Insider Dayal Sujata Tyagi
Role null
Sold 13,761 shs ($116K)
Type Security Shares Price Value
Sale Common Stock 12,781 $8.36 $107K
Sale Common Stock 980 $8.94 $9K
Grant/Award Stock Option (Right to Buy) 11,296 $0.00 --
Grant/Award Common Stock 25,344 $0.00 --
Holdings After Transaction: Common Stock — 101,543 shares (Direct, null); Stock Option (Right to Buy) — 11,296 shares (Direct, null)
Footnotes (1)
  1. Represents an annual grant of restricted stock units ("RSUs") granted under the Company's Stock Incentive plan, as amended and restated, for Board and Committee service. Each RSU represents a right to receive one share of Emergent BioSolutions Inc. (the "Company") common stock upon vesting. The shares underlying the RSUs will vest on the day prior to the one-year anniversary of the grant date ("Annual Grant Vesting Date"), subject to the reporting person remaining a member of the Company's board of directors through the Annual Grant Vesting Date. Represents the number of shares sold by the Reporting Person. Shares were sold pursuant to a Rule 10b5-1 trading plan, dated August 8, 2025, for the purpose of satisfying tax obligations relating to the vesting of RSUs on April 29, 2026. The price reported in Column 4 is a weighted average price for sales executed on the same day within a one-dollar price range. These shares were sold in multiple transactions at prices ranging from $7.70 to $8.69, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The price reported in Column 4 is a weighted average price for sales executed on the same day within a one-dollar price range. These shares were sold in multiple transactions at prices ranging from $8.70 to $8.99, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Consists of stock options granted under the Company's Stock Incentive Plan, as amended and restated, for Board and Committee service. The shares underlying the options will vest on the Annual Grant Vesting Date, subject to the reporting person remaining a member of the Company's board of directors through the Annual Grant Vesting Date. Each stock option represents a right to purchase one share of the Company's common stock upon vesting at the exercise price. The number of options granted was determined by multiplying 25% of the total non-employee director compensation value, and then dividing by the Black-Scholes value of a single option calculated as of the date of the grant.
RSU grant 25,344 shares Annual director RSU grant on April 30, 2026
Option grant 11,296 options Director stock options granted April 30, 2026
Option exercise price $7.99/share Exercise price for 11,296 stock options
Options expiration April 30, 2033 Expiration date of granted stock options
Shares sold 13,761 shares Total common shares sold May 1, 2026
Sale price ranges $7.70–$8.69 and $8.70–$8.99 Weighted-average price bands for May 1, 2026 sales
Post-transaction holdings 100,563 shares Common shares held directly after reported transactions
restricted stock units financial
"Represents an annual grant of restricted stock units ("RSUs") granted under"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Rule 10b5-1 trading plan regulatory
"Shares were sold pursuant to a Rule 10b5-1 trading plan, dated"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Stock Incentive Plan financial
"granted under the Company's Stock Incentive plan, as amended and restated"
A stock incentive plan is a company program that gives employees or directors pieces of ownership or the right to buy shares over time, similar to receiving a bonus paid in company stock instead of cash. Investors pay attention because these plans align staff incentives with long‑term company performance but can also dilute existing shareholders and affect reported profits when grants are expensed, so they influence both ownership percentages and financial results.
weighted average price financial
"The price reported in Column 4 is a weighted average price for sales"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Black-Scholes value financial
"dividing by the Black-Scholes value of a single option calculated"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Dayal Sujata Tyagi

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

(Street)
GAITHERSBURG MARYLAND 20879

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Emergent BioSolutions Inc. [ EBS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock04/30/2026A25,344(1)A$0114,324D
Common Stock05/01/2026S12,781(2)D$8.36(3)101,543D
Common Stock05/01/2026S980(2)D$8.94(4)100,563D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$7.9904/30/2026A11,296 (5)04/30/2033Common Stock11,296(6)$011,296D
Explanation of Responses:
1. Represents an annual grant of restricted stock units ("RSUs") granted under the Company's Stock Incentive plan, as amended and restated, for Board and Committee service. Each RSU represents a right to receive one share of Emergent BioSolutions Inc. (the "Company") common stock upon vesting. The shares underlying the RSUs will vest on the day prior to the one-year anniversary of the grant date ("Annual Grant Vesting Date"), subject to the reporting person remaining a member of the Company's board of directors through the Annual Grant Vesting Date.
2. Represents the number of shares sold by the Reporting Person. Shares were sold pursuant to a Rule 10b5-1 trading plan, dated August 8, 2025, for the purpose of satisfying tax obligations relating to the vesting of RSUs on April 29, 2026.
3. The price reported in Column 4 is a weighted average price for sales executed on the same day within a one-dollar price range. These shares were sold in multiple transactions at prices ranging from $7.70 to $8.69, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
4. The price reported in Column 4 is a weighted average price for sales executed on the same day within a one-dollar price range. These shares were sold in multiple transactions at prices ranging from $8.70 to $8.99, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
5. Consists of stock options granted under the Company's Stock Incentive Plan, as amended and restated, for Board and Committee service. The shares underlying the options will vest on the Annual Grant Vesting Date, subject to the reporting person remaining a member of the Company's board of directors through the Annual Grant Vesting Date. Each stock option represents a right to purchase one share of the Company's common stock upon vesting at the exercise price.
6. The number of options granted was determined by multiplying 25% of the total non-employee director compensation value, and then dividing by the Black-Scholes value of a single option calculated as of the date of the grant.
Remarks:
/s/ Richard S. Lindahl, Attorney-in-fact05/04/2026
** 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 4 (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 4: SEC 1474 (03-26)

FAQ

What did Emergent BioSolutions (EBS) director Sujata Tyagi receive in this Form 4 filing?

She received an annual grant of 25,344 restricted stock units and 11,296 stock options on April 30, 2026. These awards were made under Emergent BioSolutions’ Stock Incentive Plan for board and committee service and vest after one year of continued board membership.

At what price can the new stock options for Emergent BioSolutions (EBS) be exercised?

The newly granted stock options have an exercise price of $7.99 per share. Each option allows the purchase of one share of Emergent BioSolutions common stock after vesting, with the options scheduled to expire on April 30, 2033 if not exercised earlier.

How many Emergent BioSolutions (EBS) shares did Sujata Tyagi sell and why?

She sold a total of 13,761 common shares on May 1, 2026. According to the filing, these shares were sold under a Rule 10b5-1 trading plan to satisfy tax obligations arising from the vesting of restricted stock units on April 29, 2026.

What price range did the Emergent BioSolutions (EBS) share sales cover in this Form 4?

The reported sales used weighted average prices within defined bands. One group of trades occurred between $7.70 and $8.69 per share, and another between $8.70 and $8.99, with exact breakdowns available upon request from the reporting person.

How many Emergent BioSolutions (EBS) shares does Sujata Tyagi hold after these transactions?

After the reported awards and sales, she directly holds 100,563 shares of Emergent BioSolutions common stock. This figure reflects her remaining direct ownership position following the May 1, 2026 open-market sales disclosed in the Form 4 filing.

How and when do the new RSUs and options for Emergent BioSolutions (EBS) vest?

Both the 25,344 RSUs and 11,296 stock options vest on the day before the one-year anniversary of the April 30, 2026 grant date. Vesting is conditioned on Sujata Tyagi continuing to serve on Emergent BioSolutions’ board of directors through that date.