DFX Intelligence

Joshua O'Brien Lubov

Chief Financial Officerat Longwood Management LLC· MA

As of 2026-09-24 · this person's identity; each section below carries its own date

Current roles: 2
Investments attributed: 0
Board seats: 0

Ask DFX about this View relationships Find contacts Investments Board seats

As of 2026-09-24 · this person's identity; each section below carries its own date

1 additional role or seat

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

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

What matters now

2022
since
Chief Financial Officer at Longwood Management LLC since 1 Apr 2022.
Tenure says how settled this partner is at the firm.
FactForm ADV Schedule A and the firm's team pageFor Founders, LPsRoles →

Relationship network

4 connected entities

From the roles sources name this person in, the investments a source attributes to them, and the boards and funds Form D names them on.

Some relationships on this record are counted rather than named here. They open with the full profile.

Joshua O'Brien Lubov

Chief Financial Officer

1 more firm or role on this record

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Reading the network

Organization

›How strength and recency are read

Venture relationships are not scored. Each line names its claim: a round led or joined, a board seat or a filing that names the firm, a listing on a portfolio page (dated by when DFX saw it, never by when the investment was made), a disclosed LP commitment, or a co-investor pair counted from observed participations. Observed means a named source says so; Derived means DFX counted it from observed rows; Inferred means a match that may be wrong.

Darker lines were active in the last 24 months or are current; lighter lines are older or undated.

Ask DFX about this network

Which companies and boards is Joshua O'Brien Lubov connected to?

How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to Joshua O'Brien Lubov: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.

See how you connect to Joshua O'Brien Lubov

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Drawing the relationship network…

Roles

1 current, 3 past

Longwood Management LLC Chief Financial Officer
Apr 1, 2022 to present · “Schedule A: LUBOV, JOSHUA, O'BRIEN, CHIEF FINANCIAL OFFICER, since 04/2022, ownership NA, control person Y”
Fact Form ADV
Collab+currency Management, LLC Chief Financial Officer
Apr 1, 2020 to Jun 29, 2022 · “Listed on Schedule A of filing 2022-03-31 as CHIEF FINANCIAL OFFICER, absent from filing 2022-06-29”
Inference Form ADV
Collaborative Fund Management LLC Chief Financial Officer
Sep 1, 2016 to Mar 28, 2022 · “Listed on Schedule A of filing 2021-03-30 as CHIEF FINANCIAL OFFICER, absent from filing 2022-03-28”
Inference Form ADV

Investments attributed to this person

No investment attributed yet. Attribution needs a source naming this person on the deal: a quote, a board seat, a portfolio page credit.

Board seats and vehicles

0 boards, 0 vehicles

None on record.

Timeline

10 dated entries: events, attributed deals, board seats and role changes

Jun 29, 2022
Joshua O'Brien Lubov (Chief Financial Officer) no longer on Schedule A of Collab+currency Management, LLC
Person left Inference Collab+currency Management, LLC Form ADV
Jun 29, 2022
Left Collab+currency Management, LLC as Chief Financial Officer
Role ended Inference Collab+currency Management, LLC Form ADV
Apr 1, 2022
Joshua O'Brien Lubov joined Schedule A of Longwood Management LLC as Chief Financial Officer
Person joined Fact Longwood Management LLC Form ADV
Apr 1, 2022
Joined Longwood Management LLC as Chief Financial Officer
Role began Fact Longwood Management LLC Form ADV
Mar 28, 2022
Joshua O'Brien Lubov (Chief Financial Officer) no longer on Schedule A of Collaborative Fund Management LLC
Person left Inference Collaborative Fund Management LLC Form ADV

Full timeline · 10 entriesnewest first

Jun 29, 2022
Joshua O'Brien Lubov (Chief Financial Officer) no longer on Schedule A of Collab+currency Management, LLC
Person left Inference Collab+currency Management, LLC Form ADV
Jun 29, 2022
Left Collab+currency Management, LLC as Chief Financial Officer
Role ended Inference Collab+currency Management, LLC Form ADV
Apr 1, 2022
Joshua O'Brien Lubov joined Schedule A of Longwood Management LLC as Chief Financial Officer
Person joined Fact Longwood Management LLC Form ADV
Apr 1, 2022
Joined Longwood Management LLC as Chief Financial Officer
Role began Fact Longwood Management LLC Form ADV
Mar 28, 2022
Joshua O'Brien Lubov (Chief Financial Officer) no longer on Schedule A of Collaborative Fund Management LLC
Person left Inference Collaborative Fund Management LLC Form ADV
Mar 28, 2022
Left Collaborative Fund Management LLC as Chief Financial Officer
Role ended Inference Collaborative Fund Management LLC Form ADV
Apr 1, 2020
Joined Collab+currency Management, LLC as Chief Financial Officer
Role began Inference Collab+currency Management, LLC Form ADV
Sep 1, 2016
Joshua O'Brien Lubov joined Schedule A of Simple Capital Management, LLC as Chief Financial Officer
Person joined Fact Collaborative Fund Management LLC Form ADV
Sep 1, 2016
Joined Collaborative Fund Management LLC as Chief Financial Officer
Role began Inference Collaborative Fund Management LLC Form ADV
Jul 1, 2016
Joshua O'Brien Lubov (Treasurer) no longer on Schedule A of Softbank Capital
Person left Inference Softbank, Inc. Form ADV

Record history

5 dated events on the change ledger, latest event first

Person left
2022-06-29source on record
Person joined
2022-04-01source on record
Person left
2022-03-28source on record

+2 more changes on this record's ledger

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

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.