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Galaxy-Sirius Partners

225 W Washington St, Ste 1650, Chicago, IL, 60606, US

Overview

Investment firm specializing in various asset classes.

Deals · 12mo

1

Stage focus

Debt

Geographic focus

United States

Sector focus

—

Investment portfolio

1rounds
NAMEDATESIZE
Tempo Therapeutics
Sep 2026Led
$15 MDebt
Tempo Therapeutics
Sep 2026Led
$15 MDebt
1
Items
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Insights

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Deal Distribution

Galaxy-Sirius Partners: 1 funding rounds are recorded in the selected participation categories.All available history.
Galaxy-Sirius Partners: 1 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Debt10

Monthly Deal Activity

Galaxy-Sirius Partners: 1 deals are recorded across 2 months.All available history.
Galaxy-Sirius Partners: 1 deals are recorded across 2 months. All available history
MonthDeals
Sep '261
Oct '260

Sector Breakdown

Galaxy-Sirius Partners: Health & Life Sciences is the largest displayed sector by deal count (1 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Galaxy-Sirius Partners: Health & Life Sciences is the largest displayed sector by deal count (1 deals). All available history
SectorDeals
Health & Life Sciences1

Deal Size Distribution

Galaxy-Sirius Partners: 1 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Galaxy-Sirius Partners: 1 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M0
$5M-$10M0
$10M-$25M1
$25M-$50M0
$50M-$100M0
$100M-$250M0
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Galaxy-Sirius Partners: United States has the largest recorded deal count among the displayed regions (1 deals).All available history.

Top 1 of 1 regions; European countries are grouped as Europe.

Galaxy-Sirius Partners: United States has the largest recorded deal count among the displayed regions (1 deals). All available history
RegionDeals
United States1
Galaxy-Sirius Partners: 4 co-investors are shown, with Gideon Strategic Partners sharing 1 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

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Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Galaxy-Sirius Partners: 4 co-investors are shown, with Gideon Strategic Partners sharing 1 recorded deals. All available history
Co-investorShared deals
Gideon Strategic Partners1
Johnson & Johnson Innovation1
Mesa Verde Venture Partners1
YK Bioventures1

Investment Strategy

Galaxy-Sirius Partners: Led accounts for 100% and participating for 0% of round participation.All available history.
Galaxy-Sirius Partners: Led accounts for 100% and participating for 0% of round participation. All available history
CategoryDeals (count)Share (%)
Led1100%
Participating00%
Galaxy-Sirius Partners: Single-lead accounts for 100% and co-led for 0% of lead dynamics.All available history.
Galaxy-Sirius Partners: Single-lead accounts for 100% and co-led for 0% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead1100%
Co-led00%

Team

Martin S. Sands

Co-Chairman & Senior Manager | Family Office Manager Company

Steven B. Sands