MPM Bioventures 2014 (b), L.P.

Fundmanaged by MPM Bioimpact· Delaware
Vintage
2014
Reported gross assets
$4.8M
Form ADV, Apr 28, 2026
HarvestFundraising status unknownADV: Venture Capital Fund
More
As of · the latest observation of this vehicle; each figure below carries its own filing date

5 additional placement agents

Every relationship, signal and contact on this record, with the source on each.

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What matters now

  1. -50%
    reported GAV

    Reported gross assets fell from $9.72M to $4.84M between the Form ADV filings of 26 Jun 2024 and 28 Apr 2026.

    The fund's assets as the adviser swears them, never its size or dry powder.

    Derivedtwo Form ADV Schedule D filingsFor LPs, secondaries buyersReporting →
Drawing the relationship network…

Amounts, each with its basis

Vintage
2014basis: name year
Target
unknownnot announced
First close
unknownnever inferred from a Form D
Final close
unknownonly from an announcement or an LP disclosure
Announced size
unknown
Form D offering
unknownwhat may be sold, not what was raised; file 021-21823702, sworn by the adviser or filed under this vehicle
Form D sold
unknown
First sale
unknown
Reported GAV
$4.8Mon the Form ADV filed Apr 28, 2026; the fund's assets, never its size or dry powder
Owners (ADV)
13
Reported on ADV
Apr 1, 2015 to Apr 28, 2026

Fundraising evidence

Unknown
no Form D or close on record (fr-1)

Lifecycle

Harvest
vintage over 7 years, still reported
age years: 12first sale: n/avintage year: 2014adv gav as of: Apr 28, 2026vintage basis: Name yearform d sold: n/aform d offering: n/aform d latest filed at: n/a

The fund's own reporting through time

23 Form ADV filings
FiledTypeGross asset value OwnersMin. investmentAdviser-ownedAudit
Apr 1, 2015Venture Capital Fund$1.2M
12$100,0001%yes
Nov 23, 2015Venture Capital Fund$20.4M
13$50,0001%yes
Nov 24, 2015Venture Capital Fund$20.4M
13$50,0001%yes
Nov 24, 2015Venture Capital Fund$20.4M
13$50,0001%yes
Mar 29, 2016Venture Capital Fund$20.8M
13$50,0001%yes
Feb 7, 2017Venture Capital Fund$20.8M
13$50,0001%yes
Mar 30, 2017Venture Capital Fund$20.6M
12$50,0001%yes
Mar 30, 2018Venture Capital Fund$20.3M
12$50,0001%yes
Jul 6, 2018Venture Capital Fund$20.3M
12$50,0001%yes
Mar 28, 2019Venture Capital Fund$26.1M
12$50,0001%yes
Jul 16, 2019Venture Capital Fund$26.1M
12$50,0001%yes
Mar 30, 2020Venture Capital Fund$26.7M
13$50,0001%yes
Apr 21, 2020Venture Capital Fund$26.7M
13$50,0001%yes
Mar 29, 2021Venture Capital Fund$47.6M
13$50,0001%yes
Mar 23, 2022Venture Capital Fund$28.5M
13$50,0001%yes
Nov 17, 2022Venture Capital Fund$28.5M
13$50,0001%yes
Mar 30, 2023Venture Capital Fund$14.2M
13$50,0001%yes
Oct 30, 2023Venture Capital Fund$14.2M
13$50,0001%yes
Mar 28, 2024Venture Capital Fund$9.7M
13$50,0001%yes
Jun 6, 2024Venture Capital Fund$9.7M
13$50,0001%yes
Jun 6, 2024Venture Capital Fund$9.7M
13$50,0001%yes
Jun 26, 2024Venture Capital Fund$9.7M
13$50,0001%yes
Apr 28, 2026Venture Capital Fund$4.8M
13$50,0001%

Principals and agents

0 principals on Form D, 0 placement agents
No Form D related person on record.

Service providers

8 named on Form ADV Schedule D and Form D

Limited partners and their reported performance

0 public LP reports
No public LP has reported this vehicle. The LP tape is read from public pension disclosures (see Limited partners); a fund appears here only when an LP’s report names it.

Known LPs and allocators

0 relationships, public pensions and the allocator graph, each counted once
No allocator names this vehicle in a public disclosure DFX holds: pension reports, foundation 990-PF returns or endowment disclosures.

Investments attributed to this vehicle

0
No investment attributed to this vehicle. The firm’s investments sit on the firm; a fund gets one only when a source names the vehicle.

Timeline

5 events
  1. Jun 26, 2024
    Administrator changed: Standish Management replaced Apex Group, first reported on the Form ADV filed June 26, 2024 (previous filing June 6, 2024)
    Administrator changed Fact Form ADV
  2. Mar 23, 2022
    Administrator changed: Apex Group replaced BROADSCOPE FUND ADMINISTRATORS, first reported on the Form ADV filed March 23, 2022 (previous filing March 29, 2021)
    Administrator changed Fact Form ADV
  3. Mar 30, 2017
    Auditor changed: KPMG replaced EY, first reported on the Form ADV filed March 30, 2017 (previous filing February 7, 2017)
    Auditor changed Fact Form ADV
  4. Nov 23, 2015
    Custodian changed: BOSTON PRIVATE BANK, UBS SECURITIES LLC replaced BNY, first reported on the Form ADV filed November 23, 2015 (previous filing April 1, 2015)
    Custodian changed Fact Form ADV
  5. Apr 1, 2015
    MPM Bioventures 2014 (b), L.P. first reported on Form ADV by MPM Asset Management LLC (Venture Capital Fund), GAV $1,234,249
    Fund first reported on Form ADV Fact Form ADV

Evidence

0 observations
Every observation on this vehicle

    Relationships across DFX

    on 1 other DFX graph
    Across the graphs

    MPM Bioventures 2014 (b), L.P. is the same institution as 1 record in RIA and Wealth.

    RIA and Wealth1

    The joined record opens with the product, beside every other relationship on this page.

    Checking your plan…

    Record history

    1 dated event on the change ledger, latest event first
    • Fund first reported on ADV
      2015-04-01source on record

    The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.