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Immatics (IMTX) director Chambre details ordinary share and option stakes

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

Rhea-AI Filing Summary

Immatics N.V. director Peter Alan Chambre filed an initial ownership report showing direct holdings of ordinary shares and multiple stock options. He directly holds 105,987 ordinary shares. In addition, he holds stock options over 25,000 ordinary shares at an exercise price of 7.9400 per share expiring on June 13, 2032, and 25,000 ordinary shares at 11.4100 per share expiring on June 26, 2033.

He also holds options over 40,000 ordinary shares at 12.0000 per share expiring on June 24, 2034, and 41,500 ordinary shares at 5.4400 per share expiring on June 23, 2035. Further positions include options over 236,974 ordinary shares at 10.0000 per share expiring on June 30, 2030, and 15,000 ordinary shares at 11.0000 per share expiring on December 8, 2031. Footnotes state that one set of options is fully vested and another set vests 100% on June 24, 2025.

Positive

  • None.

Negative

  • None.
Insider Chambre Peter Alan
Role Director
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) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Ordinary Shares -- -- --
Holdings After Transaction: Stock Option (Right to Buy) — 236,974 shares (Direct); Ordinary Shares — 105,987 shares (Direct)
Footnotes (1)
  1. These options to purchase ordinary shares of the Issuer (each such option, an "Option") are fully vested. These Options vest 100% on the first anniversary of the grant date, June 24, 2025.
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*
Chambre Peter Alan

(Last)(First)(Middle)
PAUL-EHRLICH-STR. 15

(Street)
TUBINGEN72076

(City)(State)(Zip)

GERMANY

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026
3. Issuer Name and Ticker or Trading Symbol
Immatics N.V. [ IMTX ]
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)
Ordinary Shares105,987D
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)06/30/2030Ordinary Shares236,974$10D
Stock Option (Right to Buy) (1)12/08/2031Ordinary Shares15,000$11D
Stock Option (Right to Buy) (1)06/13/2032Ordinary Shares25,000$7.94D
Stock Option (Right to Buy) (1)06/26/2033Ordinary Shares25,000$11.41D
Stock Option (Right to Buy) (1)06/24/2034Ordinary Shares40,000$12D
Stock Option (Right to Buy) (2)06/23/2035Ordinary Shares41,500$5.44D
Explanation of Responses:
1. These options to purchase ordinary shares of the Issuer (each such option, an "Option") are fully vested.
2. These Options vest 100% on the first anniversary of the grant date, June 24, 2025.
Remarks:
Exhibit List - Exhibit 24.1 - Power of Attorney
/s/ Edward Sturchio, attorney-in-fact for Peter Alan Chambre03/18/2026
** 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 the Immatics (IMTX) Form 3 filing by Peter Alan Chambre show?

The Form 3 shows Peter Alan Chambre’s initial holdings in Immatics N.V., including 105,987 ordinary shares and several stock option grants. These options cover different numbers of ordinary shares, with specified exercise prices and expiration dates extending from 2030 through 2035.

How many Immatics (IMTX) ordinary shares does Peter Alan Chambre directly own?

Peter Alan Chambre directly owns 105,987 ordinary shares of Immatics N.V. This position is reported as a direct holding, separate from his various stock options, which give additional rights to acquire ordinary shares at preset exercise prices in future years.

What stock options are reported for Peter Alan Chambre in Immatics (IMTX)?

He holds multiple Stock Option (Right to Buy) positions over Immatics ordinary shares. These include grants over 25,000, 40,000, 41,500, 236,974, and 15,000 underlying shares, each with its own exercise price and expiration date between 2030 and 2035.

At what prices can Peter Alan Chambre exercise his Immatics (IMTX) stock options?

His options are exercisable at fixed prices of 5.4400, 7.9400, 10.0000, 11.0000, 11.4100, and 12.0000 per ordinary share. Each option series has a separate expiration date ranging from June 30, 2030 to June 23, 2035.

When do Peter Alan Chambre’s Immatics (IMTX) stock options vest and expire?

One group of options is noted as fully vested, while another vests 100% on June 24, 2025. Option expiration dates include June 30, 2030, June 13, 2032, June 26, 2033, June 24, 2034, and June 23, 2035, plus December 8, 2031.

Is the Immatics (IMTX) Form 3 filing a report of trades or just holdings?

The Form 3 primarily reports holdings rather than trades. It lists Peter Alan Chambre’s existing ordinary share position and stock option grants. The transaction summary shows no buy, sell, or exercise activity, only holding entries and unknown transaction codes.