Pacific Biosciences of California Ownership | Who Owns Pacific Biosciences of California?
Pacific Biosciences of California Ownership Summary
Pacific Biosciences of California is owned by 61.77% institutional investors, 8.77% insiders, and 29.46% retail investors. Ark investment management is the largest institutional shareholder, holding 12.01% of PACB shares. ARK Disruptive Innovation Full Composite is the top mutual fund, with 6.89% of its assets in Pacific Biosciences of California shares.
PACB Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Pacific Biosciences of California | 61.77% | 8.77% | 29.46% |
| Sector | Healthcare Stocks | 35.74% | 11.83% | 52.43% |
| Industry | Medical Device Stocks | 36.65% | 11.46% | 51.88% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Ark investment management | 36.27M | 12.01% | $47.88M |
| Blackrock | 23.61M | 8.76% | $32.34M |
| Blackrock funding, inc. /de | 25.27M | 8.37% | $33.35M |
| Softbank group | 20.45M | 6.77% | $27.00M |
| Vanguard group | 17.04M | 5.66% | $31.86M |
| Edmond de rothschild | 10.68M | 3.56% | $13.66B |
| Nikko asset management americas | 7.04M | 2.33% | $9.22M |
| Sumitomo mitsui trust | 7.04M | 2.33% | $9.29M |
| Geode capital management | 6.98M | 2.31% | $9.21M |
| State street | 6.12M | 2.03% | $8.08M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Svb capital management | 20.59K | 1.31% | $27.17K |
| Birchview capital, lp | 1.50M | 1.13% | $1.98M |
| Bourne lent asset management | 951.05K | 0.46% | $1.26M |
| Ark investment management | 36.27M | 0.37% | $47.88M |
| Point72 (difc) | 4.27M | 0.36% | $5.47M |
| Green alpha advisors | 182.62K | 0.24% | $241.06K |
| Softbank group | 20.45M | 0.24% | $27.00M |
| Edmond de rothschild | 10.68M | 0.21% | $13.66B |
| Iq eq fund management (ireland) | 1.79M | 0.18% | $2.36M |
| Nikko asset management americas | 7.04M | 0.13% | $9.22M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Nuveen | 2.95M | 0.00% | 2.10M |
| Vanguard fiduciary trust | 1.99M | 0.00% | 1.99M |
| Blackrock funding, inc. /de | 25.27M | 0.00% | 1.92M |
| Point72 (difc) | 4.27M | 0.36% | 1.81M |
| Norges bank | 1.21M | 0.00% | 1.21M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Deep track capital, lp | - | - | -7.00M |
| Macquarie group | - | - | -6.64M |
| Madrone advisors | - | - | -4.98M |
| Bellevue group | - | - | -4.59M |
| Casdin capital | 723.77K | 0.07% | -3.50M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 1.99M | 0.00% | 1.99M | $2.62M |
| Norges bank | 1.21M | 0.00% | 1.21M | $1.66M |
| Qube research | 1.18M | 0.00% | 1.18M | $1.56M |
| Tudor investment corp et al | 684.71K | 0.00% | 684.71K | $903.81K |
| Panagora asset management | 502.66K | 0.00% | 502.66K | $663.51K |
Sold Out
| Holder | Change |
|---|---|
| Org partners | -1.00 |
| Dinuzzo private wealth | -7.00 |
| Financial gravity asset management | -13.00 |
| Jfs wealth advisors | -14.00 |
| Nelson, van denburg & campbell wealth management group | -51.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 229 | 1.78% | 186,483,662 | -7.10% | 61 | 1.39% | 109 | -3.54% | 68 | 36.00% |
| Dec 31, 2025 | 114 | -46.98% | 119,775,955 | -35.68% | 39 | 1.03% | 50 | -39.76% | 29 | -52.46% |
| Sep 30, 2025 | 102 | -50.24% | 112,641,910 | -42.72% | 37 | 0.87% | 33 | -58.23% | 33 | -50.75% |
| Jun 30, 2025 | 210 | -8.70% | 195,613,890 | -13.10% | 65 | 1.13% | 81 | -12.90% | 69 | -1.43% |
| Mar 31, 2025 | 8 | -96.62% | 27,605,046 | -89.36% | 9 | 0.10% | - | -100.00% | 4 | -93.85% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| ARK Disruptive Innovation Full Composite | 20.82M | 6.89% | -530.28K |
| ARK Innovation ETF | 14.73M | 4.75% | -1.08M |
| EdRF Big Data N EUR | 12.06M | 4.02% | -25.74K |
| ARK Genomic Revolution ETF | 10.96M | 3.53% | 464.03K |
| ARK Genomic Revolution | 10.38M | 3.44% | -344.90K |
| Vanguard Total Stock Mkt Idx Inv | 9.54M | 3.07% | 576.70K |
| Vanguard US Total Market Shares ETF | 8.93M | 3.00% | - |
| iShares Russell 2000 ETF | 6.55M | 2.11% | 55.23K |
| Nikko AM ARK Pstv Chg Innovt P JPY Acc | 5.08M | 1.69% | - |
| Vanguard Small Cap Index | 3.45M | 1.26% | 8.23K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Apr 01, 2026 | Gibson James R II | See Remarks | Sell | $120.81K |
| Mar 03, 2026 | HENRY CHRISTIAN O | See Remarks | Sell | $18.92K |
| Mar 03, 2026 | Van Oene Mark | See Remarks | Sell | $9.85K |
| Mar 03, 2026 | Farmer Michele | See Remarks | Sell | $4.51K |
| Feb 17, 2026 | Van Oene Mark | See Remarks | Sell | $204.55K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 1 |
| 2026 Q1 | - | 9 |
| 2025 Q3 | - | 1 |
| 2025 Q2 | - | 1 |
| 2025 Q1 | - | 7 |
PACB Ownership FAQ
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