DFX Intelligence

Mathias Turck

Role unknown· NY

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

Current roles: 0
Investments attributed: 3
Board seats: 2

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

Nothing material in the last 365 days. Last change: 13 Aug 2020, Latest Phosphorus Form D equity offering ($7.99M) on 13 Aug 2020.

Relationship network

3 connected entities3 observed investment recordsinvestment records 2014 to 2020

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.

Mathias Turck

Reading the network

Organization
Company

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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Drawing the relationship network…

Roles

0 current, 1 past

Firstmark Capital, LLC Managing Director Of Firstmark Capital, Llc
Mar 1, 2013 to Mar 29, 2018 · “Listed on Schedule A of filing 2017-03-30 as MANAGING DIRECTOR OF FIRSTMARK CAPITAL, LLC, absent from filing 2018-03-29”
Inference Form ADV

Investments attributed to this person

Company	Round	Investor	Attribution	Date	Source
Phosphorus	Form D equity offering · $8.0M	Firstmark Capital, LLC	strongly supported · board	Aug 13, 2020	Inference sec.gov
Phosphorus	Form D equity offering · $10.5M	Firstmark Capital, LLC	strongly supported · board	Jul 27, 2018	Inference sec.gov
Recombine	Form D equity offering · $3.6M	Firstmark Capital, LLC	strongly supported · board	Feb 25, 2014	Inference sec.gov

Board seats and vehicles

2 boards, 0 vehicles

Phosphorus board seat on a deal Aug 13, 2020 Inference
Recombine board seat on a deal Feb 25, 2014 Inference

Timeline

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

Aug 13, 2020
Form D equity offering in Phosphorus (Firstmark Capital, LLC)
Attributed investment Inference Phosphorus Form D
Jul 27, 2018
Form D equity offering in Phosphorus (Firstmark Capital, LLC)
Attributed investment Inference Phosphorus Form D
Mar 29, 2018
Mathias Turck (Managing Director Of Firstmark Capital, Llc) no longer on Schedule A of Firstmark Capital, LLC
Person left Inference Firstmark Capital, LLC Form ADV
Mar 29, 2018
Left Firstmark Capital, LLC as Managing Director Of Firstmark Capital, Llc
Role ended Inference Firstmark Capital, LLC Form ADV
Feb 25, 2014
Form D equity offering in Recombine (Firstmark Capital, LLC)
Attributed investment Inference Recombine Form D

Full timeline · 7 entriesnewest first

Aug 13, 2020
Form D equity offering in Phosphorus (Firstmark Capital, LLC)
Attributed investment Inference Phosphorus Form D
Jul 27, 2018
Form D equity offering in Phosphorus (Firstmark Capital, LLC)
Attributed investment Inference Phosphorus Form D
Mar 29, 2018
Mathias Turck (Managing Director Of Firstmark Capital, Llc) no longer on Schedule A of Firstmark Capital, LLC
Person left Inference Firstmark Capital, LLC Form ADV
Mar 29, 2018
Left Firstmark Capital, LLC as Managing Director Of Firstmark Capital, Llc
Role ended Inference Firstmark Capital, LLC Form ADV
Feb 25, 2014
Form D equity offering in Recombine (Firstmark Capital, LLC)
Attributed investment Inference Recombine Form D
Mar 1, 2013
Mathias Turck joined Schedule A of Firstmark Capital, LLC as Managing Director Of Firstmark Capital, Llc
Person joined Fact Firstmark Capital, LLC Form ADV
Mar 1, 2013
Joined Firstmark Capital, LLC as Managing Director Of Firstmark Capital, Llc
Role began Inference Firstmark Capital, LLC Form ADV

Record history

2 dated events on the change ledger, latest event first

Person left
2018-03-29source on record
Person joined
2013-03-01source 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.