STOCK TITAN

Parabilis Medicines (PBLS) director details vested and vesting stock options

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Parabilis Medicines director Barbara Weber filed a Form 3 showing her stock option holdings. She reports options over 32,490 shares of common stock at an exercise price of $3.14 per share expiring on February 23, 2036, 16,245 shares at $4.82 expiring on May 12, 2031, 13,646 shares at $4.62 expiring on September 24, 2028, and 2,599 shares at $1.85 expiring on December 14, 2027. One option grant is fully vested, and another will vest in 48 equal monthly installments starting on February 24, 2026, conditioned on her continued service.

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Insider Weber Barbara
Role null
Type Security Shares Price Value
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
Holdings After Transaction: Stock Option (right to buy) — 2,599 shares (Direct, null)
Footnotes (1)
  1. The shares subject to this option are fully vested. The shares subject to this option shall vest and become exercisable in forty-eight (48) equal monthly installments commencing from February 24, 2026, subject to the Reporting Person's continued service on each such vesting date.
Option grant 1 underlying shares 32,490 shares Stock option at $3.14 exercise price, expires February 23, 2036
Option grant 1 exercise price $3.14/share Stock option over Parabilis common stock
Option grant 2 underlying shares 16,245 shares Stock option at $4.82 exercise price, expires May 12, 2031
Option grant 3 underlying shares 13,646 shares Stock option at $4.62 exercise price, expires September 24, 2028
Option grant 4 underlying shares 2,599 shares Stock option at $1.85 exercise price, expires December 14, 2027
Option grant 4 exercise price $1.85/share Stock option over Parabilis common stock
Monthly vesting period 48 months Option vesting in 48 equal monthly installments from February 24, 2026
Stock Option (right to buy) financial
"security_title: Stock Option (right to buy) over Parabilis common stock"
Common Stock financial
"underlying_security_title: Common Stock for each option grant"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
exercise price financial
"conversion_or_exercise_price fields show exercise price per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
expiration date financial
"expiration_date fields list each option’s expiration date"
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.
vest financial
"The shares subject to this option shall vest and become exercisable"
A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.
continued service financial
"vesting is subject to the Reporting Person's continued service on each vesting date"
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Learn about SEC filing dates
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*
Weber Barbara

(Last)(First)(Middle)
C/O PARABILIS MEDICINES, INC.
30 ACORN PARK DRIVE, 6TH FLOOR

(Street)
CAMBRIDGE MASSACHUSETTS 02140

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2026
3. Issuer Name and Ticker or Trading Symbol
Parabilis Medicines, Inc. [ PBLS ]
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)
XDirector10% Owner
Officer (give title below)Other (specify below)
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)
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
Stock Option (right to buy) (1)12/14/2027Common Stock2,599$1.85D
Stock Option (right to buy) (1)09/24/2028Common Stock13,646$4.62D
Stock Option (right to buy) (1)05/12/2031Common Stock16,245$4.82D
Stock Option (right to buy) (2)02/23/2036Common Stock32,490$3.14D
Explanation of Responses:
1. The shares subject to this option are fully vested.
2. The shares subject to this option shall vest and become exercisable in forty-eight (48) equal monthly installments commencing from February 24, 2026, subject to the Reporting Person's continued service on each such vesting date.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Teresa Jurgensen, Attorney-in-Fact06/09/2026
** 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)

FAQ

What does Barbara Weber’s Form 3 for Parabilis Medicines (PBLS) show?

Barbara Weber’s Form 3 discloses her existing stock option holdings in Parabilis Medicines. It lists four option grants over common stock with specific exercise prices, expiration dates, and vesting terms, providing a baseline of her derivative ownership as a company director.

How many Parabilis Medicines (PBLS) shares are covered by Barbara Weber’s options?

Her disclosed options cover 32,490 shares at $3.14, 16,245 shares at $4.82, 13,646 shares at $4.62, and 2,599 shares at $1.85. Each grant relates to Parabilis common stock and has its own stated expiration date and vesting conditions.

What are the exercise prices of Barbara Weber’s Parabilis (PBLS) stock options?

The filing lists four exercise prices: $3.14, $4.82, $4.62, and $1.85 per share. These prices indicate the cost at which she can purchase Parabilis common stock under each option grant, subject to vesting and expiration terms.

When do Barbara Weber’s Parabilis (PBLS) stock options expire?

Her options expire on four different dates: December 14, 2027, September 24, 2028, May 12, 2031, and February 23, 2036. These expiration dates define the final day each option can be exercised if it is vested and otherwise exercisable.

How do Barbara Weber’s Parabilis (PBLS) options vest over time?

One option grant is already fully vested according to the disclosure footnote. Another grant will vest in forty-eight equal monthly installments starting on February 24, 2026, and each installment depends on her continued service with Parabilis on the applicable vesting date.

Does Barbara Weber’s Parabilis (PBLS) Form 3 show recent buying or selling?

The Form 3 presents her stock option holdings rather than recent trades. The transactions are coded as holdings with unknown transaction codes, and the transaction summary shows no classified buys, sells, exercises, gifts, or other disposition activity in connection with these option positions.