PACB Institutional Ownership
Who owns Pacific Biosciences of California, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 223 funds reported holding PACB at Jun 30, 2026, together owning 61.5% of the company.
- ●93 buying vs 106 selling
- ▲Held by funds +0.9 pts
- ▼Funds holding -8
- ●Superinvestors: 3 added, 3 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 223 | 231 | −3.5% |
| In funds' top 10 | 1 | 1 | 0.0% |
| 13F shares | 191M | 188M | +1.5% |
| Held by funds | 61.5% | 60.5% | +0.9 pts |
| New positions | 23 | 46 | −50.0% |
| Increased | 70 | 60 | +16.7% |
| Reduced | 77 | 70 | +10.0% |
| Sold out | 29 | 32 | −9.4% |
| Calls (shares) | 40K | 40K | 0.0% |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | 0.00 | 0.00 | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in PACB
All superinvestors →
Who owns PACB
share of fund held shares- Index and passive funds37.4%
- Active managers and hedge funds42.8%
- Banks and brokers19.6%
- Pensions, insurers and other0.2%
The top 10 holders own 68.3% of all PACB shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
39 funds changed their position- Capricorn Fund Managers LtdNew+1.9M sh
- Sumitomo Mitsui Trust Group, Inc.Trimmed−1.1M sh
- Mackenzie Financial CorpNew+546K sh
- Green Alpha Advisors, LLCTrimmed−145K sh
- Creative PlanningTrimmed−97K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 10.40% | 32.3M | $54.3M | +7.1M |
| 2 | ARK Investment Management LLC | 9.58% | 29.8M | $50M | −6.5M |
| 3 | Softbank Group Corp. | 6.58% | 20.5M | $34.4M | 0 |
| 4 | Vanguard Capital Management LLC | 4.31% | 13.4M | $22.5M | +620K |
| 5 | Geode Capital Management, LLC | 2.45% | 7.6M | $12.8M | +631K |
| 6 | Amova Asset Management Americas, Inc. | 1.93% | 6M | $10M | −1M |
| 7 | Sumitomo Mitsui Trust Group, Inc. | 1.93% | 6M | $10.1M | −1M |
| 8 | State Street Corp | 1.92% | 6M | $10M | −161K |
| 9 | Point72 Asset Management, L.P. | 1.54% | 4.8M | $8M | +4.5M |
| 10 | Two Sigma Investments, LP | 1.36% | 4.2M | $7.1M | +733K |
- BlackRock, Inc.+7.1M sh+$11.9M
- Point72 Asset Management, L.P.+4.5M sh+$7.6M
- Goldman Sachs Group Inc+2.2M sh+$3.8M
- Longaeva Partners L.P.+2.1M sh+$3.6M
- Citadel Advisors LLC+1.3M sh+$2.1M
- Two Sigma Investments, LP+733K sh+$1.2M
- Geode Capital Management, LLC+631K sh+$1.1M
- Numerai GP LLC+621K sh+$1M
- ARK Investment Management LLC−6.5M sh−$10.9M
- Nuveen, LLC−1.9M sh−$3.2M
- Renaissance Technologies LLC−1.5M sh−$2.6M
- Morgan Stanley−1.4M sh−$2.3M
- Jane Street Group, LLC−1.4M sh−$2.3M
- Sumitomo Mitsui Trust Group, Inc.−1M sh−$1.7M
- Amova Asset Management Americas, Inc.−1M sh−$1.7M
- Hrt Financial LP−1.3M sh−$1.7M
PACB institutional ownership FAQ
Who owns the most PACB stock?
In Q2 2026 13F filings the largest holder of PACB was BlackRock, Inc., followed by ARK Investment Management LLC and Softbank Group Corp.. Index fund managers are usually the biggest holders of large companies.
What percentage of PACB is owned by institutions?
Funds that file 13F reports held 61.5% of PACB's shares at Jun 30, 2026, compared with 60.5% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying PACB?
In Q2 2026, 93 funds bought PACB (23 of them new positions) and 106 sold (29 sold out completely). Among well known investors, 3 added and 3 cut. Our fund sentiment for PACB is neutral.
What is PACB's institutional put/call ratio?
Funds reported $0 of PACB puts against $67K of calls, a put/call ratio of 0.00 (0.00 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this PACB ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.