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Frazier Entities Disclose Detailed MacroGenics (MGNX) Holdings and Attribution Corrections

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13G/A

Rhea-AI Filing Summary

The Frazier Life Sciences reporting group disclosed specific holdings in MacroGenics common stock. Frazier Life Sciences Public Fund, L.P. directly holds 1,549,193 shares representing 2.5% of the 63,090,323 shares outstanding used for the percentage calculation. Other reporting entities hold 925,809 shares (1.5%), 575,150 shares (0.9%) and 125,513 shares (0.2%).

The filing states that voting and dispositive power for these shares is shared rather than sole and corrects prior attributions by clarifying that members of certain investment committees are not attributed beneficial ownership of the securities held by the respective funds. The statement also notes the reporters do not admit broader beneficial ownership or group status beyond what is disclosed.

Positive

  • Correction of prior attribution errors improves accuracy of beneficial ownership records.
  • Exact share counts and percentages disclosed (e.g., 1,549,193 shares = 2.5%) provide clear transparency.

Negative

  • No reporting person holds a controlling stake (>5%), indicating limited influence over MacroGenics.
  • All reported positions reflect shared voting and dispositive power, so no sole control is reported.

Insights

TL;DR: Frazier funds hold modest, non-controlling stakes in MacroGenics; the amendment clarifies prior attribution errors and discloses exact positions.

The filing provides precise share counts and percentages for multiple Frazier-controlled funds, with the largest single reported holding at 1,549,193 shares (2.5%) based on 63,090,323 shares outstanding. From an investor-analysis perspective, these stakes are below a controlling threshold and are disclosed as shared voting and dispositive power. The amendment improves record accuracy by removing prior attributions to individual committee members, reducing ambiguity about who exercises authority over the positions.

TL;DR: The amendment tightens governance disclosures by clarifying that investment committees are not individually attributed beneficial ownership.

The filing corrects earlier filings by stating that investment committees managing certain general partners act by majority vote and that committee members should not be attributed beneficial ownership of the funds' securities. It also confirms no sole voting or dispositive power is claimed for the reporting persons, and includes a joint filing agreement as an exhibit. These clarifications enhance transparency in ownership reporting without asserting control or group affiliation beyond the reported holdings.






Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)






SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 125,513 shares of Common Stock held directly by Frazier Life Sciences X, L.P. The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 125,513 shares of Common Stock held directly by Frazier Life Sciences X, L.P. The percentage listed in row 11 is calculated based on 63,090,323 shares of Common Stock outstanding on May 9, 2025, as set forth in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 13, 2025.


SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G



Frazier Life Sciences Public Fund, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P., GP of Frazier Life Sciences Public Fund, L.P.
Date:08/14/2025
FHMLSP, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P.
Date:08/14/2025
FHMLSP, L.L.C.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP, L.L.C.
Date:08/14/2025
Frazier Life Sciences Public Overage Fund, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P., GP of Frazier Life Sciences Public Overage Fund, L.P.
Date:08/14/2025
FHMLSP Overage, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P.
Date:08/14/2025
FHMLSP Overage, L.L.C.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C.
Date:08/14/2025
Frazier Life Sciences X, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P., GP of Frazier Life Sciences X, L.P.
Date:08/14/2025
FHMLS X, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P.
Date:08/14/2025
FHMLS X, L.L.C.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS X, L.L.C.
Date:08/14/2025
Frazier Life Sciences XI, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P., GP of Frazier Life Sciences XI, L.P.
Date:08/14/2025
FHMLS XI, L.P.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P.
Date:08/14/2025
FHMLS XI, L.L.C.
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, CFO of FHMLS XI, L.L.C.
Date:08/14/2025
James N. Topper
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, Attorney-in-Fact for James N. Topper, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017
Date:08/14/2025
Patrick J. Heron
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, Attorney-in-Fact for Patrick J. Heron, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017
Date:08/14/2025
Albert Cha
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, Attorney-in-Fact for Albert Cha, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021
Date:08/14/2025
James Brush
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, Attorney-in-Fact for James Brush, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021
Date:08/14/2025
Daniel Estes
Signature:/s/ Steve R. Bailey
Name/Title:By Steve R. Bailey, Attorney-in-Fact for Daniel Estes, pursuant to a Power of Attorney, a copy of which was filed with the SEC on April 18, 2022
Date:08/14/2025
Exhibit Information

Exhibit 99.1 Joint Filing Agreement, dated as of November 20, 2024, incorporated by reference into this Statement.

FAQ

How many MacroGenics (MGNX) shares does Frazier Life Sciences Public Fund hold?

The filing reports 1,549,193 shares held by Frazier Life Sciences Public Fund, representing 2.5% of the stated outstanding shares.

What percentage of MGNX does Frazier Life Sciences XI, L.P. own?

Frazier Life Sciences XI, L.P. directly holds 575,150 shares, equal to 0.9% of the referenced outstanding shares.

Do any Frazier reporting persons claim sole voting or dispositive power over MGNX shares?

No. The cover pages and Item 4 state sole voting and dispositive power are 0 and the reported power is shared.

What outstanding share base was used to calculate percentages in the filing?

Percentages are calculated using 63,090,323 shares of Common Stock outstanding as set forth in the issuer's Quarterly Report referenced in the filing.

Does the filing change prior ownership attributions?

Yes. The filing expressly corrects prior attributions by clarifying that certain investment committee members are not attributed beneficial ownership of the funds' securities.
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