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13F-HR filed by MPM ASSET MANAGEMENT LLC

MPM ASSET MANAGEMENT LLC filed this 13F-HR for the quarter ended 2021-06-30, filed 2021-08-13, with 9 holding rows worth $537,884,000.

Accession
0000950123-21-010733
Filed
2021-08-13
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2021

A holdings report, 9 entries on the cover page, a total value of $537,884,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $537,884,000 with VALUE read as thousands by filing date, 13F file number 028-13379. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
DYNE THERAPEUTICS INC COM26818M108Stock4,951,303$104,175,000thousands by filing date
ITEOS THERAPEUTICS INC46565G104COM3,665,787$94,027,000thousands by filing date
WEREWOLF THERAPEUTICS INC95075A107CMN4,284,172$74,716,000thousands by filing date
REPARE THERAPEUTICS INC760273102COM2,271,177$70,815,000thousands by filing date
TCR2 THERAPEUTICS INC87808K106COM4,050,865$66,475,000thousands by filing date
HARPOON THERAPEUTICS INC41358P106COM3,130,267$43,417,000thousands by filing date
ONCORUS INC68236R103COM2,849,464$39,323,000thousands by filing date
CHIASMA INC16706W102COM5,736,296$27,133,000thousands by filing date
RHYTHM PHARMACEUTICALS INC76243J105COM909,258$17,803,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0000950123-21-010733this filing2021-08-13acceptance time not in the bulk data set