Prime Medicine Ownership | Who Owns Prime Medicine?
Prime Medicine Ownership Summary
Prime Medicine is owned by 71.27% institutional investors, 17.62% insiders, and 11.11% retail investors. Alphabet is the largest institutional shareholder, holding 12.82% of PRME shares. ARK Genomic Revolution ETF is the top mutual fund, with 2.58% of its assets in Prime Medicine shares.
PRME Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Prime Medicine | 71.27% | 17.62% | 11.11% |
| Sector | Healthcare Stocks | 42.52% | 10.81% | 46.67% |
| Industry | Biotech Stocks | 45.18% | 10.75% | 44.06% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Alphabet | 16.56M | 12.82% | $91.76M |
| T. rowe price investment management | 9.22M | 7.13% | $51.06M |
| Blackrock funding, inc. /de | 5.65M | 4.37% | $31.31M |
| Ark investment management | 5.48M | 4.24% | $30.35B |
| Vanguard group | 4.92M | 3.81% | $27.27M |
| Farallon capital management | 4.75M | 3.68% | $26.32M |
| Sumitomo mitsui trust | 3.63M | 2.81% | $20.11M |
| Nikko asset management americas | 3.63M | 2.81% | $20.04M |
| Casdin capital | 3.17M | 2.45% | $17.55M |
| Woodline partners lp | 3.00M | 2.32% | $16.63M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Mwg management | 1.79M | 12.21% | $9.93M |
| Alphabet | 16.56M | 3.81% | $91.76M |
| Casdin capital | 3.17M | 1.46% | $17.55M |
| Green alpha advisors | 190.35K | 1.02% | $1.05M |
| Ecor1 capital | 1.54M | 0.41% | $8.55M |
| Chelsea counsel | 208.21K | 0.26% | $514.28K |
| Ra capital management | 3.00M | 0.20% | $16.62M |
| Greenwich wealth management | 720.00K | 0.20% | $3.99M |
| Nikko asset management americas | 3.63M | 0.19% | $20.04M |
| Ark investment management | 5.48M | 0.18% | $30.35B |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Farallon capital management | 4.75M | 0.11% | 4.00M |
| Ark investment management | 5.48M | 0.18% | 3.16M |
| Woodline partners lp | 3.00M | 0.08% | 3.00M |
| Ra capital management | 3.00M | 0.20% | 3.00M |
| T. rowe price investment management | 9.22M | 0.03% | 2.73M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Redmile group | 87.12K | 0.05% | -1.99M |
| Baker bros. advisors lp | - | - | -1.03M |
| Fmr | 2.81M | 0.00% | -931.35K |
| Westwood group | - | - | -883.13K |
| Samsara biocapital | - | - | -405.23K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Woodline partners lp | 3.00M | 0.08% | 3.00M | $16.63M |
| Ra capital management | 3.00M | 0.20% | 3.00M | $16.62M |
| Adage capital partners gp | 771.36K | 0.01% | 771.36K | $4.27M |
| Wellington management group llp | 205.32K | 0.00% | 205.32K | $1.14M |
| Man group | 189.59K | 0.00% | 189.59K | $1.05M |
Sold Out
| Holder | Change |
|---|---|
| Federated hermes | -6.00 |
| Cordant | -33.00 |
| Massmutual trust co fsb/adv | -104.00 |
| Parallel advisors | -110.00 |
| Allworth financial lp | -141.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 168 | 33.33% | 92,064,582 | 56.73% | 71 | 3.45% | 110 | 69.23% | 31 | -8.82% |
| Jun 30, 2025 | 125 | 0.81% | 58,714,059 | -1.59% | 45 | 2.19% | 65 | 4.84% | 33 | -5.71% |
| Mar 31, 2025 | 124 | -4.62% | 60,152,185 | -4.70% | 45 | 1.64% | 61 | -12.86% | 35 | 9.38% |
| Dec 31, 2024 | 132 | 11.86% | 64,335,371 | -6.37% | 53 | 1.64% | 72 | 35.85% | 32 | 6.67% |
| Sep 30, 2024 | 118 | -4.07% | 68,711,038 | -0.26% | 57 | 1.72% | 53 | -24.29% | 30 | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| ARK Genomic Revolution ETF | 4.60M | 2.58% | -16.42K |
| Vanguard Total Stock Mkt Idx Inv | 2.98M | 2.22% | 886.14K |
| ARK Genomic Revolution | 2.27M | 1.69% | -231.65K |
| Vanguard US Total Market Shares ETF | 2.16M | 1.65% | - |
| T. Rowe Price U.S. SC Value Eq Tr-D | 2.12M | 1.58% | 1.37M |
| T. Rowe Price Small-Cap Stock | 2.43M | 1.36% | 2.31M |
| T. Rowe Price Small-Cap Value | 2.38M | 1.34% | -1.19M |
| Nikko AM ARK Disruptive Innovation A USD | 1.31M | 1.00% | - |
| Nikko AM ARK Pstv Chg Innovt P JPY Acc | 1.25M | 0.93% | -6.92K |
| T. Rowe Price New Horizons | 1.13M | 0.86% | -15.27K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 01, 2025 | GV 2021 GP, L.L.C. | - | Buy | $4.95M |
| Aug 01, 2025 | NELSEN ROBERT | Buy | $10.00M | |
| Aug 01, 2025 | ARCH Venture Partners XII, LLC | - | Buy | $10.00M |
| Aug 01, 2025 | ARCH Venture Partners X, LLC | - | Buy | $10.00M |
| Jun 30, 2025 | Liu David R. | - | Buy | $52.83K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | 3 | - |
| 2025 Q2 | 7 | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | - |
| 2024 Q2 | - | - |
PRME Ownership FAQ
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