STOCK TITAN

Inovio (INO) CMO granted RSUs and 46,876 stock options at $1.73

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

INOVIO PHARMACEUTICALS, INC. Chief Medical Officer Michael John Sumner reported several equity compensation transactions on May 20, 2026. He exercised 9,450 restricted stock units, receiving common shares, and 2,693 shares were withheld by the company to cover related tax obligations.

Sumner also received a new grant of 37,684 restricted stock units, which vest in three annual installments from February 26, 2027 through February 26, 2029. In addition, he was granted 46,876 stock options with a $1.73 exercise price, vesting over the same three-year period under INOVIO’s amended 2023 Omnibus Incentive Plan, which shareholders approved on May 20, 2026.

Positive

  • None.

Negative

  • None.
Insider Sumner Michael John
Role Chief Medical Officer
Type Security Shares Price Value
Exercise Restricted Stock Unit 9,450 $0.00 --
Grant/Award Common Stock Option 46,876 $0.00 --
Grant/Award Restricted Stock Unit 37,684 $0.00 --
Exercise Common Stock 9,450 $0.00 --
Tax Withholding Common Stock 2,693 $1.23 $3K
Holdings After Transaction: Restricted Stock Unit — 18,900 shares (Direct, null); Common Stock Option — 46,876 shares (Direct, null); Common Stock — 44,731 shares (Direct, null)
Footnotes (1)
  1. Each restricted stock unit represents a contingent right to receive one share of common stock. The vesting schedule for the 28,350 restricted stock units was as follows: 9,450 shares vested on May 20, 2026; 9,450 shares will vest on May 20, 2027; 9,450 shares will vest on May 20, 2028. Vested restricted stock units can be settled in shares of common stock, cash or a combination of both. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of the restricted stock unit award reported in the immediately preceding row and described in footnote (1) herein. The stock option grant was approved by Inovio's Board of Directors on March 4, 2026, subject to shareholder approval of the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan under which the stock options were granted. Inovio's shareholders approved the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan on May 20, 2026. The vesting schedule for the options granted on May 20, 2026 was as follows: 15,626 shares will vest on February 26, 2027; 15,625 shares will vest on February 26, 2028; 15,625 shares will vest on February 26, 2029. Each restricted stock unit represents a contingent right to receive one share of common stock. The vesting schedule for the restricted stock units granted on May 20, 2026 was as follows: 12,562 shares will vest on February 26, 2027; 12,561 shares will vest on February 26, 2028; 12,561 and shares will vest on February 26, 2029. Vested restricted stock units can be settled in shares of common stock, cash or a combination of both. The restricted stock units were approved by Inovio's Board of Directors on March 4, 2026, subject to shareholder approval of the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan under which the restricted stock units were granted. Inovio's shareholders approved the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan on May 20, 2026.
RSUs exercised 9,450 units Restricted stock units converted to common stock on May 20, 2026
Tax withholding shares 2,693 shares Shares withheld to satisfy tax obligations on RSU vesting
New RSU grant 37,684 units Restricted stock units granted on May 20, 2026
New stock options 46,876 options Stock option grant approved under 2023 Omnibus Incentive Plan
Option exercise price $1.73 per share Exercise price for 46,876 stock options expiring May 20, 2036
RSU vesting schedule (legacy grant) 3×9,450 units 28,350 RSUs with 9,450 vesting annually May 20, 2026–2028
RSU vesting schedule (new grant) 12,562 + 12,561 + 12,561 units New RSUs vesting annually Feb 26, 2027–2029
restricted stock unit financial
"Each restricted stock unit represents a contingent right to receive one share of common stock."
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.
tax withholding obligations financial
"withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations"
stock option grant financial
"The stock option grant was approved by Inovio's Board of Directors on March 4, 2026"
Omnibus Incentive Plan financial
"the Amended and Restated 2023 Omnibus Incentive Plan under which the stock options were granted"
An omnibus incentive plan is a single, flexible program a company uses to give employees and executives different types of pay tied to performance — for example stock options, restricted shares, cash bonuses and other awards — all governed by one set of rules. It matters to investors because it determines how many new shares may be created, how leaders are motivated and how much the company will spend on compensation over time; think of it as a master toolbox that affects both costs and the total share supply.
exercise or conversion of derivative security financial
"Exercise or conversion of derivative security"
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).
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*
Sumner Michael John

(Last)(First)(Middle)
660 W. GERMANTOWN PIKE
SUITE 110

(Street)
PLYMOUTH MEETING PENNSYLVANIA 19462

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
INOVIO PHARMACEUTICALS, INC. [ INO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Medical Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026
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 Stock05/20/2026M9,450A(1)44,731D
Common Stock05/20/2026F2,693(2)D$1.2342,038D
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
Restricted Stock Unit(1)05/20/2026M9,450 (1) (1)Common Stock9,450$018,900D
Common Stock Option$1.7305/20/2026(3)A46,876 (4)05/20/2036Common Stock46,876$046,876D
Restricted Stock Unit(5)05/20/2026(6)A37,684 (5) (5)Common Stock37,684$037,684D
Explanation of Responses:
1. Each restricted stock unit represents a contingent right to receive one share of common stock. The vesting schedule for the 28,350 restricted stock units was as follows: 9,450 shares vested on May 20, 2026; 9,450 shares will vest on May 20, 2027; 9,450 shares will vest on May 20, 2028. Vested restricted stock units can be settled in shares of common stock, cash or a combination of both.
2. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of the restricted stock unit award reported in the immediately preceding row and described in footnote (1) herein.
3. The stock option grant was approved by Inovio's Board of Directors on March 4, 2026, subject to shareholder approval of the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan under which the stock options were granted. Inovio's shareholders approved the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan on May 20, 2026.
4. The vesting schedule for the options granted on May 20, 2026 was as follows: 15,626 shares will vest on February 26, 2027; 15,625 shares will vest on February 26, 2028; 15,625 shares will vest on February 26, 2029.
5. Each restricted stock unit represents a contingent right to receive one share of common stock. The vesting schedule for the restricted stock units granted on May 20, 2026 was as follows: 12,562 shares will vest on February 26, 2027; 12,561 shares will vest on February 26, 2028; 12,561 and shares will vest on February 26, 2029. Vested restricted stock units can be settled in shares of common stock, cash or a combination of both.
6. The restricted stock units were approved by Inovio's Board of Directors on March 4, 2026, subject to shareholder approval of the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan under which the restricted stock units were granted. Inovio's shareholders approved the amendment and restatement of the Amended and Restated 2023 Omnibus Incentive Plan on May 20, 2026.
Remarks:
/s/ Michael John Sumner05/21/2026
** 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 INO Chief Medical Officer Michael John Sumner report in this Form 4?

Michael John Sumner reported equity compensation activity, including exercising 9,450 restricted stock units into common stock and receiving new grants of restricted stock units and stock options. The filing mainly reflects routine compensation-related transactions rather than open-market buying or selling of INO shares.

How many INO restricted stock units did Michael John Sumner vest and exercise?

Sumner vested and exercised 9,450 restricted stock units into common stock on May 20, 2026. Each unit represents a contingent right to one share, and vested units can be settled in common stock, cash, or a combination, according to the company’s equity award terms.

How many new restricted stock units did INO grant to Michael John Sumner?

INOVIO granted Sumner 37,684 new restricted stock units. These RSUs will vest in three annual installments: 12,562 units on February 26, 2027, and two tranches of 12,561 units on February 26, 2028 and February 26, 2029, subject to the plan’s conditions.

What stock option grant did Michael John Sumner receive from INO?

Sumner received 46,876 stock options with a $1.73 exercise price, expiring on May 20, 2036. The options vest in three installments: 15,626 shares on February 26, 2027 and 15,625 shares on both February 26, 2028 and February 26, 2029, under INOVIO’s incentive plan.

Were any INO shares sold by Michael John Sumner in the open market?

The filing shows 2,693 INO shares disposed of to satisfy tax withholding obligations linked to RSU vesting. This F-code transaction is a tax-withholding disposition, not an open-market sale, and does not represent a discretionary decision to sell shares in the market.

What shareholder approval is connected to Michael John Sumner’s INO awards?

Both the stock options and restricted stock units were approved by INOVIO’s board on March 4, 2026, subject to shareholder approval of an amended 2023 Omnibus Incentive Plan. Shareholders approved that amended and restated plan on May 20, 2026, enabling these grants.