2026 Q1 Portfolio Activity
In 2026 Q1, Alta Partners Management Company, L.P. maintained a portfolio of 2 distinct positions.
Position History
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Total Positions
2
Quarter
2026 Q1
Top Holding
TYRA (97.0%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-2 of 2
Alta Partners Management Company, L.P. Full Holdings List — 2026 Q1
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
TYRA
TYRA BIOSCIENCE...
|
Healthcare | 96.97% | 97.03% |
#1
Prev: #1
|
7.0 |
—
|
no change | no change |
P
S
|
3,823,425 | $146,437,178 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
VIR
VIR BIOTECHNOLO...
|
Healthcare | 3.03% | 2.97% |
#2
Prev: #2
|
3.7 |
—
|
no change | no change |
P
S
|
509,917 | $4,568,856 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 |
Showing 1-2 of 2 holdings