STOCK TITAN

[Form 4] IGM Biosciences, Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

IGM Biosciences was acquired in a transaction where holders received $1.247 per share in cash plus one contingent value right (CVR) per share. The acquiring parent completed a tender offer and the subsequent merger, after which outstanding common stock, non-voting common stock and pre-funded warrants held by reporting persons were cancelled for cash consideration and CVRs based on the transaction terms. Reported Redmile-managed funds and Jeremy Green disclosed disposition of their beneficial interests, resulting in zero beneficial ownership reported post-transaction. A Redmile managing director resigned from the issuer's board immediately prior to the merger closing.

IGM Biosciences è stata acquisita in un’operazione in cui gli azionisti hanno ricevuto 1,247 USD per azione in contanti più un diritto di valore contingente (CVR) per azione. La società acquirente ha realizzato un’offerta pubblica di acquisto e la successiva fusione; a seguito di ciò, le azioni ordinarie in circolazione, le azioni ordinarie senza diritto di voto e le warrant pre-pagate detenute dalle persone soggette a comunicazione sono state annullate in cambio di contanti e CVR secondo i termini dell’operazione. I fondi gestiti da Redmile segnalati e Jeremy Green hanno comunicato la cessione dei loro interessi benefici, determinando una proprietà beneficiaria pari a zero dopo la transazione. Un managing director di Redmile si è dimesso dal consiglio di amministrazione dell’emittente immediatamente prima della chiusura della fusione.

IGM Biosciences fue adquirida en una operación en la que los tenedores recibieron 1,247 USD por acción en efectivo más un derecho contingente de valor (CVR) por acción. La matriz adquirente llevó a cabo una oferta pública de adquisición y la posterior fusión; tras ello, las acciones ordinarias en circulación, las acciones ordinarias sin derecho a voto y las garantías prefinanciadas poseídas por las personas informantes fueron canceladas a cambio de efectivo y CVR conforme a los términos de la transacción. Los fondos gestionados por Redmile reportados y Jeremy Green declararon la disposición de sus intereses beneficiarios, resultando en una titularidad beneficiaria nula tras la operación. Un director gerente de Redmile dimitió del consejo de administración del emisor inmediatamente antes del cierre de la fusión.

IGM 바이오사이언스는 주주들이 주당 1.247달러의 현금과 주당 1개의 조건부 가치 권리(CVR)를 받은 거래로 인수되었습니다. 인수 법인은 공개매수와 그에 따른 합병을 완료했으며, 그 결과 보고 대상자가 보유한 발행 보통주, 의결권 없는 보통주 및 선지급 워런트는 거래 조건에 따라 현금과 CVR로 소각되었습니다. 보고된 Redmile 운용 펀드들과 Jeremy Green은 그들의 수익적 소유권 처분을 공시했으며, 거래 후 보고된 수익적 소유권은 제로가 되었습니다. Redmile의 한 전무는 합병 종결 직전에 발행회사 이사회에서 사임했습니다.

IGM Biosciences a été acquise dans une opération où les détenteurs ont reçu 1,247 USD par action en espèces ainsi qu’un droit de valeur conditionnelle (CVR) par action. La société mère acquéreuse a réalisé une offre publique d’achat puis la fusion subséquente ; par la suite, les actions ordinaires en circulation, les actions ordinaires sans droit de vote et les bons de souscription préfinancés détenus par des personnes assujetties à déclaration ont été annulés contre paiement en espèces et CVR conformément aux termes de l’opération. Les fonds gérés par Redmile signalés et Jeremy Green ont déclaré la cession de leurs intérêts bénéficiaires, entraînant une propriété bénéficiaire nulle après la transaction. Un managing director de Redmile a démissionné du conseil d’administration de l’émetteur immédiatement avant la clôture de la fusion.

IGM Biosciences wurde in einer Transaktion übernommen, bei der die Inhaber 1,247 USD pro Aktie in bar sowie ein contingent value right (CVR) pro Aktie erhielten. Die erwerbende Muttergesellschaft führte ein Übernahmeangebot und die anschließende Verschmelzung durch; danach wurden ausstehende Stammaktien, nicht stimmberechtigte Stammaktien und vorfinanzierte Warrants, die von meldepflichtigen Personen gehalten wurden, gemäß den Transaktionsbedingungen gegen Barzahlungen und CVRs annulliert. Die gemeldeten von Redmile verwalteten Fonds und Jeremy Green gaben die Veräußerung ihrer wirtschaftlichen Beteiligungen bekannt, wodurch nach der Transaktion kein wirtschaftliches Eigentum mehr berichtet wurde. Ein geschäftsführender Direktor von Redmile trat unmittelbar vor dem Abschluss der Fusion aus dem Vorstand des Emittenten zurück.

Positive
  • Completed merger providing immediate cash consideration of $1.247 per share to outstanding holders
  • Contingent Value Rights (CVRs) granted per share, offering potential additional upside beyond the cash price
  • Cancellation of pre-funded warrants for cash and CVRs simplified post-transaction capital structure
Negative
  • Reporting persons (Redmile-managed funds and Jeremy Green) disposed of all reported holdings, now reporting 0 shares beneficially owned
  • Board change: Michael Lee resigned as a director immediately prior to the merger closing, reducing prior independent representation

Insights

TL;DR: The merger delivered a cash exit of $1.247 per share plus CVRs; significant insiders fully divested their positions.

The transaction represents a full liquidity event for public holders: a fixed cash price of $1.247 per share coupled with a CVR that may provide additional contingent value. Redmile-managed vehicles and Jeremy Green reported disposing of all reported common, non-voting common and pre-funded warrant positions, reporting 0 shares beneficially owned after the closing. For valuation analysis, investors should treat the cash consideration as the guaranteed component and the CVR as contingent upside; the elimination of outstanding warrants and conversion mechanics simplified the capital structure post-closing.

TL;DR: Governance changed as the company became a wholly owned subsidiary and a Redmile director resigned before closing.

The merger converted the public issuer into a private subsidiary, removing the company from public governance processes and market oversight. Reported departures include the resignation of Michael Lee from the board immediately prior to closing, indicating pre-closing board alignment with the transaction. The Form 4 discloses that reported securities were held via Redmile funds and may have been deemed beneficially owned by Jeremy Green, who now reports no remaining beneficial holdings. These are material governance changes for any remaining stakeholders tied to the CVR arrangements.

IGM Biosciences è stata acquisita in un’operazione in cui gli azionisti hanno ricevuto 1,247 USD per azione in contanti più un diritto di valore contingente (CVR) per azione. La società acquirente ha realizzato un’offerta pubblica di acquisto e la successiva fusione; a seguito di ciò, le azioni ordinarie in circolazione, le azioni ordinarie senza diritto di voto e le warrant pre-pagate detenute dalle persone soggette a comunicazione sono state annullate in cambio di contanti e CVR secondo i termini dell’operazione. I fondi gestiti da Redmile segnalati e Jeremy Green hanno comunicato la cessione dei loro interessi benefici, determinando una proprietà beneficiaria pari a zero dopo la transazione. Un managing director di Redmile si è dimesso dal consiglio di amministrazione dell’emittente immediatamente prima della chiusura della fusione.

IGM Biosciences fue adquirida en una operación en la que los tenedores recibieron 1,247 USD por acción en efectivo más un derecho contingente de valor (CVR) por acción. La matriz adquirente llevó a cabo una oferta pública de adquisición y la posterior fusión; tras ello, las acciones ordinarias en circulación, las acciones ordinarias sin derecho a voto y las garantías prefinanciadas poseídas por las personas informantes fueron canceladas a cambio de efectivo y CVR conforme a los términos de la transacción. Los fondos gestionados por Redmile reportados y Jeremy Green declararon la disposición de sus intereses beneficiarios, resultando en una titularidad beneficiaria nula tras la operación. Un director gerente de Redmile dimitió del consejo de administración del emisor inmediatamente antes del cierre de la fusión.

IGM 바이오사이언스는 주주들이 주당 1.247달러의 현금과 주당 1개의 조건부 가치 권리(CVR)를 받은 거래로 인수되었습니다. 인수 법인은 공개매수와 그에 따른 합병을 완료했으며, 그 결과 보고 대상자가 보유한 발행 보통주, 의결권 없는 보통주 및 선지급 워런트는 거래 조건에 따라 현금과 CVR로 소각되었습니다. 보고된 Redmile 운용 펀드들과 Jeremy Green은 그들의 수익적 소유권 처분을 공시했으며, 거래 후 보고된 수익적 소유권은 제로가 되었습니다. Redmile의 한 전무는 합병 종결 직전에 발행회사 이사회에서 사임했습니다.

IGM Biosciences a été acquise dans une opération où les détenteurs ont reçu 1,247 USD par action en espèces ainsi qu’un droit de valeur conditionnelle (CVR) par action. La société mère acquéreuse a réalisé une offre publique d’achat puis la fusion subséquente ; par la suite, les actions ordinaires en circulation, les actions ordinaires sans droit de vote et les bons de souscription préfinancés détenus par des personnes assujetties à déclaration ont été annulés contre paiement en espèces et CVR conformément aux termes de l’opération. Les fonds gérés par Redmile signalés et Jeremy Green ont déclaré la cession de leurs intérêts bénéficiaires, entraînant une propriété bénéficiaire nulle après la transaction. Un managing director de Redmile a démissionné du conseil d’administration de l’émetteur immédiatement avant la clôture de la fusion.

IGM Biosciences wurde in einer Transaktion übernommen, bei der die Inhaber 1,247 USD pro Aktie in bar sowie ein contingent value right (CVR) pro Aktie erhielten. Die erwerbende Muttergesellschaft führte ein Übernahmeangebot und die anschließende Verschmelzung durch; danach wurden ausstehende Stammaktien, nicht stimmberechtigte Stammaktien und vorfinanzierte Warrants, die von meldepflichtigen Personen gehalten wurden, gemäß den Transaktionsbedingungen gegen Barzahlungen und CVRs annulliert. Die gemeldeten von Redmile verwalteten Fonds und Jeremy Green gaben die Veräußerung ihrer wirtschaftlichen Beteiligungen bekannt, wodurch nach der Transaktion kein wirtschaftliches Eigentum mehr berichtet wurde. Ein geschäftsführender Direktor von Redmile trat unmittelbar vor dem Abschluss der Fusion aus dem Vorstand des Emittenten zurück.

SEC Form 4
FORM 4 UNITED 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
X
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*
Redmile Group, LLC

(Last) (First) (Middle)
ONE LETTERMAN DRIVE, BUILDING D
SUITE D3-300

(Street)
SAN FRANCISCO CA 94129

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
IGM Biosciences, Inc. [ IGMS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/14/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
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)
Code V Amount (A) or (D) Price
Common Stock 08/14/2025 D 2,964,843 D (1) 0 I See Footnotes(5)(6)
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Voting Common Stock (3) 08/14/2025 D 7,199,325(1) (3) (3) Common Stock 7,199,325 (1) 0 I See Footnotes(5)(6)
Pre-Funded Warrants to Purchase Common Stock $0.01 08/14/2025 D 667,666(2) 12/11/2020 (4) Common Stock 667,666 (2) 0 I See Footnotes(5)(6)
1. Name and Address of Reporting Person*
Redmile Group, LLC

(Last) (First) (Middle)
ONE LETTERMAN DRIVE, BUILDING D
SUITE D3-300

(Street)
SAN FRANCISCO CA 94129

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
X Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Green Jeremy

(Last) (First) (Middle)
C/O REDMILE GROUP, LLC (NY OFFICE)
45 W. 27TH STREET, FLOOR 11

(Street)
NEW YORK NY 10001

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. On August 14, 2025, pursuant to the terms of the Agreement and Plan of Merger (the "Merger Agreement"), dated as of July 1, 2025, among the Issuer, Concentra Biosciences, LLC, a Delaware limited liability company ("Parent"), and Concentra Merger Sub V, Inc., a Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub completed a tender offer to purchase all outstanding shares of the Issuer's Common Stock and Non-Voting Common Stock ("Issuer Shares") in exchange for (a) a price per share of $1.247 in cash (the "Offer Price"), subject to applicable tax withholding and without interest, plus (b) one contingent value right ("CVR") per share subject to the terms and conditions of a Contingent Value Rights Agreement ("CVR Agreement"). The tender offer expired one minute following 11:59 p.m., Eastern Time, on August 13, 2025 (the "Offer Closing").
2. On August 14, 2025, the Issuer completed its merger transaction with and into Merger Sub pursuant to the terms of the Merger Agreement, with the Issuer surviving as a wholly owned subsidiary of Parent (the "Merger"). At the effective date and time of the Merger (the "Merger Closing"), each outstanding and unexercised pre-funded warrant to purchase shares of the Issuer's Common Stock (each, a "Pre-Funded Warrant") was cancelled and the holder received the right to a cash amount based on the Offer Price, subject to applicable tax withholding and without interest, less the exercise price per share underlying the Pre-Funded Warrant, plus one CVR per underlying share subject to the terms and conditions of a CVR Agreement.
3. The Non-Voting Common Stock was convertible into shares of the Issuer's common stock at any time, in accordance with the terms of the Issuer's Amended and Restated Certificate of Incorporation at any time and from time to time at the holder's election on a 1-for-1 basis. The Non-Voting Common Stock had no expiration date.
4. The Pre-Funded Warrants to purchase common stock of the Issuer have no expiration date.
5. The Common Stock, Non-Voting Common Stock, and Pre-Funded Warrants of the Issuer reported herein were directly owned by certain private investment vehicles managed by Redmile (each, a "Redmile Fund"), and may have been deemed beneficially owned by Redmile as investment manager of the Redmile Funds.
6. The reported securities may also be deemed beneficially owned by Jeremy Green as the principal of Redmile (collectively with Redmile, the "Reporting Persons"). The Reporting Persons disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, if any, and this Form 4 shall not be deemed an admission that either Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
Remarks:
Michael Lee, a managing director of Redmile, resigned as a member of the board of directors of the Issuer immediately prior to the Merger Closing.
By: /s/ Jeremy Green, Managing Member of Redmile Group, LLC 08/15/2025
/s/ Jeremy Green 08/15/2025
** Signature of Reporting Person Date
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.

FAQ

What consideration did IGM Biosciences (IGMS) holders receive in the transaction?

Holders received $1.247 per share in cash plus one Contingent Value Right (CVR) per share under the CVR Agreement.

Did Redmile or Jeremy Green retain any IGMS shares after the merger?

No. The Form 4 reports that Redmile-managed vehicles and Jeremy Green disposed of the reported securities and now report 0 shares beneficially owned.

What happened to pre-funded warrants of IGMS?

At the merger closing, each outstanding and unexercised pre-funded warrant was cancelled and the holder received a cash amount equal to the Offer Price less the warrant exercise price, plus one CVR per underlying share.

Was there any change to the board of directors reported?

Yes. Michael Lee, a managing director of Redmile, resigned as a member of the issuer's board immediately prior to the merger closing.

Are the reported CVRs guaranteed cash?

No. The document states holders received one CVR per share subject to the terms and conditions of a CVR Agreement, indicating contingent rather than guaranteed value.
Igm Biosciences, Inc.

NASDAQ:IGMS

IGMS Rankings

IGMS Latest News

IGMS Latest SEC Filings

IGMS Stock Data

76.57M
23.58M
37.21%
53.45%
0.67%
Biotechnology
Pharmaceutical Preparations
Link
United States
MOUNTAIN VIEW