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APMC

Alta Partners Management Company Portfolio holdings

AUM $127M
1-Year Est. Return 230.85%
This Fund
S&P 500
This Quarter Est. Return
-32.1%
1 Year Est. Return
+230.85%
3 Year Est. Return
–
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$41.8M
AUM Growth
-$21.6M
Cap. Flow
+$111K
Cap. Flow %
0.26%
Top 10 Hldgs %
100%
Holding
3
New
–
Increased
1
Reduced
–
Closed
–

Top Buys

Rank Stock Value
1
VIR icon
Vir Biotechnology
VIR
+$111K

Top Sells

No sells this quarter

Sector Composition

Rank Sector Weight
1 Healthcare 100%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TYRA icon
1
Tyra Biosciences
TYRA
$1.56B
$37.9M 90.83%
4,080,296
– –
VIR icon
2
Vir Biotechnology
VIR
$1.87B
$3.25M 7.78%
501,917
+12,432
+3% +$111K
ALLK
3
DELISTED
Allakos
ALLK
$580K 1.39%
2,546,147
– –

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Alta Partners Management Company's Q1 2025 Portfolio in Review

As of Q1 2025, Alta Partners Management Company held 3 positions worth $41.8M, down 34% from $63.4M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

Trading was light in Q1 2025: portfolio turnover was 0%. Alta Partners Management Company opened no new positions and made no exits, leaving the 3-position portfolio largely intact.

By sector, the portfolio is most concentrated in Healthcare at 100% of assets, unchanged from a quarter earlier.

  • Alta Partners Management Company added most to Vir Biotechnology in Q1 2025, an estimated $111K increase.
  • Alta Partners Management Company's ten largest holdings make up 100% of its $41.8M portfolio in Q1 2025.
  • Alta Partners Management Company opened 0 new positions and closed 0 in Q1 2025.
  • Alta Partners Management Company's portfolio value fell 34% quarter-over-quarter to $41.8M.

Based on Alta Partners Management Company's 13F filing for Q1 2025, filed 12 May 2025.