Mainsail Management Company, LLC

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 13, 2025), Mainsail Management Company, LLC reported 3 stock positions worth $103.5 million. Its top holding was Brilliant Earth Class A (BRLT) at 64.7% of the portfolio, followed by Servicetitan Class A (TTAN, 34.1%) and Soundthinking (SSTI, 1.2%). Compared with Q3 2024, it opened 1 new position. The biggest buy was a new position in Servicetitan Class A (TTAN).

Most Recent 13F
Q3 2025
Location
AUSTIN, TX
CIK
0001883367
Portfolio Value
$103.5M (Q4 2024)
SEC Filing
0001883367-25-000001 ↗ filed Feb 13, 2025

Holdings Value

0$50.0M$100.0M$150.0M Q1 2024: $96.8M Q1 2024 Q2 2024: $71.9M Q2 2024 Q3 2024: $69.3M Q3 2024 Q4 2024: $103.5M $103.5M Q4 2024 Q1 2025: $84.6M Q1 2025 Q2 2025: $66.1M Q2 2025 Q3 2025: $66.0M Q3 2025

Holdings 3 stocks · $103.5M
BRLT Brilliant Earth Group Inc. Class A 64.72% 31,900,771 $67.0M No change
TTAN Servicetitan Inc. Class A 34.12% 343,246 $35.3M New
SSTI Soundthinking Inc. 1.16% 91,939 $1.2M No change

Portfolio Sells Q3 2024 → Q4 2024
None this quarter.

Portfolio Buys Q3 2024 → Q4 2024
TTAN Servicetitan Inc. Class A New 34.12% +34.12

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q3 2025 1$66.0MBRLT
Q2 2025 2$66.1MBRLT, TTAN
Q1 2025 3$84.6MBRLT, TTAN, SSTI
Q4 2024Amended 3$103.5MBRLT, TTAN, SSTI
Q3 2024 2$69.3MBRLT, SSTI
Q2 2024 2$71.9MBRLT, SSTI
Q1 2024 2$96.8MBRLT, SSTI