DFX Intelligence

John Spiridigliozzi

Executive Officerat Terrestrial Bio, Inc.· Woburn, MA

As of 2026-09-12 · this person's identity; each section below carries its own date

Current roles: 1
Investments attributed: 0
Board seats: 0

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As of 2026-09-12 · this person's identity; each section below carries its own date

What matters now

Current
role
Executive Officer at Terrestrial Bio, Inc..
Tenure says how settled this partner is at the firm.
FactForm ADV Schedule A and the firm's team pageFor Founders, LPsRoles →

Relationship network

1 connected entity

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.

John Spiridigliozzi

Executive Officer

Reading the network

Company

›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.

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How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to John Spiridigliozzi: 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.

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Drawing the relationship network…

Roles

1 current, 0 past

Terrestrial Bio, Inc. Executive Officer
? to present · “Form D 0001578117-24-000001: John Spiridigliozzi, Executive Officer”
Fact Form D

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

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

No dated event, deal or role on record.