Founders Fund V Management, LLC

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 14, 2025), Founders Fund V Management, LLC reported 2 stock positions worth $2.9 million. Its top holding was Rigetti Computing (RGTI) at 92.0% of the portfolio, followed by Rafael Class B (RFL, 8.0%). Compared with Q2 2025, it sold out of 2. The biggest sale was an exit from Unity Biotechnology (UNBX).

Most Recent 13F
Q4 2025
Location
SAN FRANCISCO, CA
CIK
0001697733
Portfolio Value
$2.9M (Q3 2025)
SEC Filing
0001697733-25-000003 ↗ filed Nov 14, 2025

Holdings Value

0$1.0M$2.0M$3.0M Q1 2024: $1.1M Q1 2024 Q2 2024: $846K Q2 2024 Q3 2024: $572K Q3 2024 Q4 2024: $1.7M Q4 2024 Q1 2025: $1.1M Q1 2025 Q2 2025: $1.4M Q2 2025 Q3 2025: $2.9M $2.9M Q3 2025 Q4 2025: $2.2M Q4 2025

Holdings 2 stocks · $2.9M
RGTI Rigetti Computing Inc. 91.97% 88,621 $2.6M No change
RFL Rafael Holdings Inc. Class B 8.03% 169,451 $230K No change

Portfolio Sells Q2 2025 → Q3 2025
UNBX Unity Biotechnology Inc. Sold out 0.00% −1.36
PRCH Porch Group Inc. Sold out 0.00% −0.73

Portfolio Buys Q2 2025 → Q3 2025
None this quarter.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q4 2025 2$2.2MRGTI, RFL
Q3 2025 2$2.9MRGTI, RFL
Q2 2025 4$1.4MRGTI, RFL, UNBX, PRCH
Q1 2025 3$1.1MRGTI, RFL, UNBX
Q4 2024 3$1.7MRGTI, CYTH, UNBX
Q3 2024Amended 4$572KCYTH, UNBX, RGTI, NTBLQ
Q2 2024 4$846KCYTH, RGTI, NTBLQ, UNBX
Q1 2024 4$1.1MCYTH, NVMI, RGTI, UNBX