Manager × security

MPM BIOIMPACT LLC CGEM holdings history

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CULLINAN THERAPEUTICS INC · CUSIP 230031106 · CIK 1687078

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, MPM BIOIMPACT LLC reported 9.73M CGEM (shares), valued at $177.21M, or 10.81% of its reported non-derivative portfolio. Filed 2026-08-14.

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Portfolio weight and quantity history
Reported portfolio weight
10.81%
Shares
9.73M
9,731,341
Reported value
$177.21M
USD

Shares increased 27.24%; reported value increased 63.05%, and weight changed +2.42 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 202610.81%9,731,341SEC filing ↗Filed Aug 14, 2026
Q1 20268.39%7,648,268SEC filing ↗Filed May 15, 2026
Q4 20259.06%7,648,268SEC filing ↗Filed Feb 17, 2026
Q3 20257.42%7,648,268SEC filing ↗Filed Nov 14, 2025
Q2 20259.98%7,648,268SEC filing ↗Filed Aug 14, 2025
Q1 20259.95%7,648,268SEC filing ↗Filed May 15, 2025
Q4 202413.23%7,648,268SEC filing ↗Filed Feb 14, 2025
Q3 202419.21%7,648,268SEC filing ↗Filed Nov 13, 2024
Q2 202420.73%7,648,268SEC filing ↗Filed Aug 14, 2024
Q1 202420.95%7,648,268SEC filing ↗Filed May 15, 2024
Q4 202318.23%7,648,268SEC filing ↗Filed Feb 13, 2024
Q3 202318.48%7,648,268SEC filing ↗Filed Nov 14, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 202318.48%7,648,268$69.22MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 14, 2023
Q4 202318.23%7,648,268$77.94MShares unchanged; reported value increased 12.60%, and weight changed -0.25 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 13, 2024
Q1 202420.95%7,648,268$130.33MShares unchanged; reported value increased 67.22%, and weight changed +2.72 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2024
Q2 202420.73%7,648,268$133.39MShares unchanged; reported value increased 2.35%, and weight changed -0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 202419.21%7,648,268$128.03MShares unchanged; reported value decreased 4.01%, and weight changed -1.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 13, 2024
Q4 202413.23%7,648,268$93.16MShares unchanged; reported value decreased 27.24%, and weight changed -5.98 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2025
Q1 20259.95%7,648,268$57.90MShares unchanged; reported value decreased 37.85%, and weight changed -3.28 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2025
Q2 20259.98%7,648,268$57.59MShares unchanged; reported value decreased 0.53%, and weight changed +0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2025
Q3 20257.42%7,648,268$45.35MShares unchanged; reported value decreased 21.25%, and weight changed -2.56 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2025
Q4 20259.06%7,648,268$79.16MShares unchanged; reported value increased 74.54%, and weight changed +1.64 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 17, 2026
Q1 20268.39%7,648,268$108.68MShares unchanged; reported value increased 37.29%, and weight changed -0.67 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2026
Q2 202610.81%9,731,341$177.21MShares increased 27.24%; reported value increased 63.05%, and weight changed +2.42 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2026
MPM BIOIMPACT LLC · CULLINAN THERAPEUTICS INC

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.