PACB

Pacific Biosciences Of Calif$1.49 2.61%
Health CareUSCUSIP 69404D108· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
179
+22 QoQ
13F Value (tracked)
$211.9M
Insider Net · 180d
-$1.3M
0↑ 4↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)21 adding · 17 trimming
Insider net (180d)-$1.3M

Price & smart-money activity

$1.49 2.61%5Y -95.3%
$0.87$9.35$17.84$26.33$34.82202120222023202420252026240403142234132354023235323575027493464640236521150333244433293829635313141323342341045407
Hover for who · click for detailEnd-of-day closing prices52w $1.12 – $2.67

Top institutional holders

179 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1ARK Investment Management LLC
$47.9M
36.3M
−2.6%
Reduced · −991K sh
Q1 2026
2BlackRock, Inc.
$33.4M
25.3M
+8.2%
Added · +1.9M sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$16.9M
12.8M
New
+12.8M sh
Q1 2026
4Sumitomo Mitsui Trust Group, Inc.
$9.3M
7.0M
−9.9%
Reduced · −771K sh
Q1 2026
5Amova Asset Management Americas, Inc.
$9.2M
7.0M
−9.9%
Reduced · −771K sh
Q1 2026
6GEODE CAPITAL MANAGEMENT, LLC
$9.2M
7.0M
−1.5%
Reduced · −103K sh
Q1 2026
7STATE STREET CORP
$8.1M
6.1M
+3.5%
Added · +209K sh
Q1 2026
8MILLENNIUM MANAGEMENT LLC
$6.5M
4.9M
+13%
Added · +548K sh
Q1 2026
9D. E. Shaw & Co., Inc.
$4.8M
3.6M
−18%
Reduced · −801K sh
Q1 2026
10TWO SIGMA INVESTMENTS, LP
$4.6M
3.5M
+22%
Added · +632K sh
Q1 2026
11Nuveen, LLC
$3.9M
3.0M
+248%
Added · +2.1M sh
Q1 2026
12VANGUARD PORTFOLIO MANAGEMENT LLC
$3.8M
2.9M
New
+2.9M sh
Q1 2026
13RENAISSANCE TECHNOLOGIES LLC
$3.3M
2.5M
−35%
Reduced · −1.4M sh
Q1 2026
14CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$3.2M
2.4M
−2.4%
Reduced · −60K sh
Q1 2026
15NORTHERN TRUST CORP
$2.8M
2.1M
+4.1%
Added · +84K sh
Q1 2026
16VANGUARD FIDUCIARY TRUST CO
$2.6M
2.0M
New
+2.0M sh
Q1 2026
17MORGAN STANLEY
$2.4M
1.8M
−24%
Reduced · −570K sh
Q1 2026
18SUSQUEHANNA INTERNATIONAL GROUP, LLP
$2.3M
1.7M
−34%
Reduced · −892K sh
Q1 2026
19BANK OF AMERICA CORP /DE/
$2.2M
1.7M
−10%
Reduced · −188K sh
Q1 2026
20UBS Group AG
$2.2M
1.6M
−48%
Reduced · −1.5M sh
Q1 2026
21CITADEL ADVISORS LLC
$2.1M
1.6M
−50%
Reduced · −1.6M sh
Q1 2026
22Birchview Capital, LP
$2.0M
1.5M
+200%
Added · +1.0M sh
Q1 2026
23JANE STREET GROUP, LLC
$1.8M
1.4M
−7.4%
Reduced · −110K sh
Q1 2026
24Qube Research & Technologies Ltd
$1.6M
1.2M
New
+1.2M sh
Q1 2026
25GOLDMAN SACHS GROUP INC
$1.3M
988K
−28%
Reduced · −390K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
9
funds
Added
12
funds
Reduced
17
funds
Exited
0
funds

Funds that own PACB also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT72 funds$26.9B
BROADCOM INCAVGO71 funds$14.9B
NVIDIA CORPNVDA70 funds$38.4B
AMAZON.COM INCAMZN70 funds$21.1B
META PLATFORMS INC-CLASS AMETA70 funds$12.7B
ELI LILLY & COLLY70 funds$7.2B
NETFLIX INCNFLX70 funds$4.6B
UNITEDHEALTH GROUP INCUNH70 funds$3.1B
ALPHABET INC-CL AGOOGL69 funds$17.3B
TESLA INCTSLA69 funds$9.6B
JPMORGAN CHASE & COJPM69 funds$8.2B
COSTCO WHOLESALE CORPCOST69 funds$4.9B

Ranked by how many of PACB's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$1.3M
4 insiders
Net
-$1.3M
10 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Apr 1, 2026Gibson James R IISee RemarksSell (S)88K$121K
Mar 3, 2026Farmer MicheleSee RemarksSell (S)3K$4K
Mar 3, 2026Van Oene MarkSee RemarksSell (S)7K$10K
Mar 3, 2026HENRY CHRISTIAN OSee RemarksSell (S)12K$19K
Feb 18, 2026Farmer MicheleSee RemarksSell (S)15K$24K
Feb 18, 2026HENRY CHRISTIAN OSee RemarksSell (S)141K$230K
Feb 18, 2026Van Oene MarkSee RemarksSell (S)55K$90K
Feb 17, 2026Farmer MicheleSee RemarksSell (S)35K$56K
Feb 17, 2026HENRY CHRISTIAN OSee RemarksSell (S)332K$524K
Feb 17, 2026Van Oene MarkSee RemarksSell (S)130K$205K
Aug 18, 2025Van Oene MarkSee RemarksSell (S)27K$35K
May 19, 2025Farmer MicheleSee RemarksSell (S)5K$5K

Institutional ownership over time

180 funds+37 since Q3 2024
090180Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $212.1M

Recent filings

15 shown

Browse more

Build

Ask your agent what changed in PACB

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/PACB/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for PACB.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PACB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.