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Founders Fund IV Management, LLC — 13F Portfolio Analysis & Stock Picks (Q4 2025)
Founders Fund IV Management, LLCCIK: 0001616081
Long-term holder
Total reported value
—
Reporting period: 2025-12-31 · Number of holdings: 1
Founders Fund IV Management, LLC disclosed 1 holdings in its latest 13F filing for the period ending 2025-12-31, with total reported value of — and a quarterly turnover rate of 0.0%.
Personality snowflake
- Concentration
- 0
- Portfolio Stability
- 0
- Momentum
- 50
- Sector conviction
- 0
- Diversification
- 2
- Sizing Uniformity
- —
Sector classification currently covers about 0% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govUnchanged 000000000
$0.0
Holdings Map
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | ✓ | Ikena Oncology Inc | Stock-Other | — | — | — |
Reported value over time
Sector allocation
Not enough sector-mapped data yet
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2025 Q4 | 1 | — | 0 | ||
| 2025 Q3 | 1 | — | 0 | ||
| 2025 Q2 | 1 | — | 0 | ||
| 2025 Q1 | 1 | — | 0 | ||
| 2024 Q4 | 1 | — | 0 | ||
| 2024 Q3 | 1 | — | 0 | ||
| 2024 Q2 | 1 | — | 0 | ||
| 2024 Q1 | 1 | — | 0 | ||
| 2023 Q4 | 1 | — | 0 | ||
| 2023 Q3 | 1 | — | 0 | ||
| 2023 Q2 | 1 | — | 0 | ||
| 2023 Q1 | 1 | — | 0 | ||
| 2022 Q4 | 1 | — | 0 | ||
| 2022 Q3 | 1 | — | 0 | ||
| 2022 Q2 | 1 | — | 0 | ||
| 2022 Q1 | 1 | $1.2M | 0 | ||
| 2021 Q4 | 1 | $12.5M | 0 | ||
| 2021 Q3 | 1 | — | 0 | ||
| 2021 Q2 | 2 | $238.4M | 48 | ||
| 2021 Q1 | 2 | $342.3M | 100 | ||
| 2020 Q4 | 1 | $20.9M | 100 | ||
| 2020 Q3 | 1 | — | 0 | ||
| 2020 Q2 | 1 | — | 0 | ||
| 2020 Q1 | 1 | — | 0 | ||
| 2019 Q4 | 1 | — | 100 | ||
| 2017 Q3 | 1 | $37.0M | 6 | ||
| 2017 Q2 | 1 | $39.2M | 26 | ||
| 2017 Q1 | 1 | $30.2M | 26 | ||
| 2016 Q4 | 1 | $23.2M | 100 | ||
| 2015 Q3 | 1 | $42.1M | 46 | 183416T | |
| 2015 Q2 | 1 | $66.9M | 4 | 183416T | |
| 2015 Q1 | 1 | $64.1M | 4 | 183416T | |
| 2014 Q4 | 1 | $66.9M | 0 | 183416T |
Holding changes this quarter
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ✓ | Ikena Oncology Inc | — | — | Unchanged |
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Filing History
FAQ
What is Founders Fund IV Management, LLC and what type of investor is it?
Founders Fund IV Management, LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2025-12-31), the firm manages a tracked equity portfolio valued at approximately —, spread across 1 disclosed positions.
What are Founders Fund IV Management, LLC's largest equity positions?
Based on the latest 13F filing, Founders Fund IV Management, LLC's top holdings by market value are:
1. Ikena Oncology Inc — $0.0
What changes did Founders Fund IV Management, LLC make in its most recent portfolio filing?
No notable portfolio changes were recorded for Founders Fund IV Management, LLC in the most recent quarter. Holdings appear to have remained relatively stable.
What sectors does Founders Fund IV Management, LLC focus on?
Sector breakdown data is not yet available for Founders Fund IV Management, LLC. Check back after the next 13F processing cycle.
Investment Profile
Founders Fund IV Management, LLC's portfolio is broadly diversified and long-term-holding.
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Developer Access
Access Founders Fund IV Management, LLC's institutional profile programmatically:
REST API
curl https://alphasmo.com/api/v1/institutions/founders-fund-iv-management-llcCLI
npx alphasmo institutions get founders-fund-iv-management-llc