AP
Alta Partners Management Company, L.P.
Concentrated strategyQuality / disciplined sizing
Total reported value
$151.0M
Reporting period: 2026-03-31 · Number of holdings: 2
Alta Partners Management Company, L.P. disclosed 2 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $151.0M and a quarterly turnover rate of 37.3%.
Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 37.25
- Momentum/Contrarian
- 50
- Sector conviction
- 0
- Diversification
- 4
- Sizing Uniformity
- 86.71
Recent moves
Trim TYRA
0.0% $45.9M
Add VIR
0.0% $1.5M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TYRA | Tyra Biosciences INC | Stock-Other | 96.97% | -0.06% | — | |
| 2 | VIR | Vir Biotechnology INC | Stock-Other | 3.03% | +0.06% | — |
Reported value over time
Sector allocation
Not enough sector-mapped data yet
Sector allocation over time
Quarterly history
Holding changes this quarter
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VIR | Vir Biotechnology INC | +0.1% | — | Unchanged |
| 2 | TYRA | Tyra Biosciences INC | -0.1% | — | Unchanged |
FAQ
What is Alta Partners Management Company, L.P. and what type of investor is it?
Alta Partners Management Company, L.P. is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $151.0M, spread across 2 disclosed positions.
What are Alta Partners Management Company, L.P.'s largest equity positions?
Based on the latest 13F filing, Alta Partners Management Company, L.P.'s top holdings by market value are:
1. Tyra Biosciences INC (TYRA) — $146.4M (97.0%)
2. Vir Biotechnology INC (VIR) — $4.6M (3.0%)
What changes did Alta Partners Management Company, L.P. make in its most recent portfolio filing?
No notable portfolio changes were recorded for Alta Partners Management Company, L.P. in the most recent quarter. Holdings appear to have remained relatively stable.
What sectors does Alta Partners Management Company, L.P. focus on?
Sector breakdown data is not yet available for Alta Partners Management Company, L.P.. Check back after the next 13F processing cycle.