Security key
69404D108
PACIFIC BIOSCIENCES OF CALIFORNIA, INC. - Common Stock (PACB)
CUSIP: 69404D108
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 188,174,283
- Total 13F value
- $248,526,709
- Share change
- -13,222,243
- Put/Call ratio
- 112%
- SEC-reported price per share
- $1.32
- Number of holders
- 227
- Value change
- -$19,871,129
- Number of buys
- 105
- Number of sells
- 99
- Shares outstanding
- 301,979,157
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
227
Top holders
10
PACB full security history
Ownership snapshot
Full 13F holder table
PACIFIC BIOSCIENCES OF CALIFORNIA, INC. SEC filings
PACIFIC BIOSCIENCES OF CALIFORNIA, INC. company facts
Broader feeds
Ownership snapshot
Top reported holders of PACB - PACIFIC BIOSCIENCES OF CALIFORNIA, INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ARK Investment Management...
Disclosed value leader
ARK Investment Management...
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
13F
Lead comparable stake: 12%
13D/G row: ARK Investment Management LLC
Showing 1-6 of 15 holder rows.
Quick read
ARK Investment Management LLC leads the comparable SEC ownership view at 12%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ARK Investment Management LLC's linked filing trail.
Comparable ownership
Top 5
ARK Investment Management LLC
12%
BlackRock, Inc.
7.7%
EDMOND DE ROTHSCHILD ASSET MANAGE...
4.5%
MADRONE CAPITAL PARTNERS, LLC
2.8%
MILLENNIUM MANAGEMENT LLC
0.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ARK Investment Management LLC |
13D/G
13F
Company
|
12%
|
$69,684,106
37,264,228 shares
|
+$11,856,034 | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
7.7%
from 13D/G
|
$43,655,095
23,344,970 shares
|
— | 31 Dec 2025 |
| EDMOND DE ROTHSCHILD ASSET MANAGEMENT (FRANCE) |
13D/G
|
4.5%
|
$16,574,088
13,366,200 shares
|
$0 | 30 Jun 2025 |
| MADRONE CAPITAL PARTNERS, LLC |
13D/G
Gregory Boyd Penner
|
2.8%
|
$10,849,394
8,476,089 shares
|
-$15,086,243 | 30 Sep 2025 |
| MILLENNIUM MANAGEMENT LLC |
13F
13D/G
Company
|
0.7%
from 13D/G
|
$8,124,344
4,344,569 shares
|
— | 31 Dec 2025 |
| SOFTBANK GROUP CORP. |
13F
Company
|
6.8%
|
$38,244,436
20,451,570 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
227
Shares
188,174,283
Rows available
227
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
227
Q1 2026 holders
227
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|