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Insider · CIK 0001729504

MPM Bioventures 2018 (B), L.P.

CIK 0001729504 Name as filed on the most recent filing

Filed as MPM Bioventures 2018 (B), L.P. (23)

83 transaction lines · from 23 filings · filed 2020-07-29 to 2026-01-14 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-20 05:22 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

0 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-20 05:22 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2021-09-27 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 11,625 disposed 27.09 314,921.25 Form 4, filing 0001209191-21-057823
2021-09-24 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 4,913 disposed 27.81 136,630.53 Form 4, filing 0001209191-21-057823
2021-09-23 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 36,213 disposed 27.96 1,012,515.48 Form 4, filing 0001209191-21-057823
2021-09-23 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 717 disposed 28.38 20,348.46 Form 4, filing 0001209191-21-057823
2021-09-22 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 14,294 disposed 27.54 393,656.76 Form 4, filing 0001209191-21-057414
2021-09-21 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 19,635 disposed 27.47 539,373.45 Form 4, filing 0001209191-21-057414
2021-09-20 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 13,701 disposed 27.84 381,435.84 Form 4, filing 0001209191-21-056950
2021-09-20 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 10,602 disposed 27.03 286,572.06 Form 4, filing 0001209191-21-056950
2021-09-17 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 45,698 disposed 28.82 1,317,016.36 Form 4, filing 0001209191-21-056950
2021-09-16 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 21,253 disposed 28.47 605,072.91 Form 4, filing 0001209191-21-056950
2021-09-15 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 23,113 disposed 27.79 642,310.27 Form 4, filing 0001209191-21-056415
2021-09-15 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 991 disposed 28.15 27,896.65 Form 4, filing 0001209191-21-056415
2021-09-14 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 17,938 disposed 27.50 493,295.00 Form 4, filing 0001209191-21-056415
2021-09-14 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 3,623 disposed 27.99 101,407.77 Form 4, filing 0001209191-21-056415
2021-09-13 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 21,384 disposed 27.64 591,053.76 Form 4, filing 0001209191-21-055743
2021-09-10 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 6,771 disposed 28.73 194,530.83 Form 4, filing 0001209191-21-055743
2021-09-10 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 6,760 disposed 27.86 188,333.60 Form 4, filing 0001209191-21-055743
2021-09-09 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 22,725 disposed 28.97 658,343.25 Form 4, filing 0001209191-21-055743
2021-09-08 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 11,152 disposed 28.61 319,058.72 Form 4, filing 0001209191-21-055210
2021-09-08 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 940 disposed 29.10 27,354.00 Form 4, filing 0001209191-21-055210
2021-09-07 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 30,474 disposed 29.18 889,231.32 Form 4, filing 0001209191-21-055210
2021-04-09 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 119 disposed 29.99 3,568.81 Form 4, filing 0001209191-21-026437
2021-04-08 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 19,057 disposed 30.51 581,429.07 Form 4, filing 0001209191-21-026213
2021-04-08 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 247 disposed 31.01 7,659.47 Form 4, filing 0001209191-21-026213
2021-04-07 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 3,164 disposed 32.07 101,469.48 Form 4, filing 0001209191-21-026213
2021-04-07 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 1,842 disposed 32.84 60,491.28 Form 4, filing 0001209191-21-026213
2021-04-07 iTeos Therapeutics, Inc.
ITOS
S, Open-market sale 777 disposed 33.84 26,293.68 Form 4, filing 0001209191-21-026213
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 89,955 acquired 19.00 1,709,145.00 Form 4, filing 0000899243-20-020683
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 56,814 acquired 19.00 1,079,466.00 Form 4, filing 0000899243-20-020683
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 5,994 acquired 19.00 113,886.00 Form 4, filing 0000899243-20-020683
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 3,096 acquired 19.00 58,824.00 Form 4, filing 0000899243-20-020683
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 3,020 acquired 19.00 57,380.00 Form 4, filing 0000899243-20-020683
2020-07-28 iTeos Therapeutics, Inc.
ITOS
P, Open-market purchase 1,121 acquired 19.00 21,299.00 Form 4, filing 0000899243-20-020683

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.

What this insider's stored lines contain

No transaction line is stored for this entity, so there is nothing to break down by code. The catalog holds its filings; what it does not hold is a single reportable line from them, which is a fact about the parse and about these filings, not about the entity.

How to cite this page

ebomi catalog. MPM BIOVENTURES 2018 (B), L.P., insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001729504

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.