HALO

Halozyme Therapeutics Inc$77.54 2.27%
Health CareUSCUSIP 40637H109· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
422
+5 QoQ
13F Value (tracked)
$6.9B
Insider Net · 180d
-$20.4M
0↑ 4↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)24 adding · 30 trimming
Insider net (180d)-$20.4M

Price & smart-money activity

$77.54 2.27%5Y +87.3%
$26.84$41.45$56.05$70.65$85.26202120222023202420252026165048485146447138585219577119677356712365496761257751275604187657610011110723101011021011181181141211171172310
Hover for who · click for detailEnd-of-day closing prices52w $55.92 – $81.57
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Ask your agent what changed in HALO

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/HALO/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for HALO.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

422 tracked 13F filers
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$857.3M
13.3M
+0.8%
Added · +111K sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$340.7M
5.3M
New
+5.3M sh
Q1 2026
3VANGUARD PORTFOLIO MANAGEMENT LLC
$339.3M
5.2M
New
+5.2M sh
Q1 2026
4STATE STREET CORP
$319.1M
4.9M
−3.6%
Reduced · −184K sh
Q1 2026
5BANK OF AMERICA CORP /DE/
$188.3M
2.9M
+6.5%
Added · +179K sh
Q1 2026
6Boston Partners
$173.4M
2.7M
+451%
Added · +2.2M sh
Q1 2026
7MORGAN STANLEY
$165.6M
2.6M
−3.6%
Reduced · −96K sh
Q1 2026
8WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
$163.3M
2.5M
+37%
Added · +683K sh
Q1 2026
9GEODE CAPITAL MANAGEMENT, LLC
$162.0M
2.5M
+3.0%
Added · +73K sh
Q1 2026
10SNYDER CAPITAL MANAGEMENT L P
$150.1M
2.3M
−3.2%
Reduced · −76K sh
Q1 2026
11DIMENSIONAL FUND ADVISORS LP
$134.4M
2.1M
−1.1%
Reduced · −24K sh
Q1 2026
12ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$124.0M
1.9M
−40%
Reduced · −1.3M sh
Q1 2026
13NORGES BANK
$128.2M
1.9M
+120%
Added · +1.0M sh
Q4 2025
14D. E. Shaw & Co., Inc.
$120.8M
1.9M
+13%
Added · +219K sh
Q1 2026
15ALLIANCEBERNSTEIN L.P.
$116.9M
1.7M
−5.4%
Reduced · −99K sh
Q1 2026
16ROYAL LONDON ASSET MANAGEMENT LTD
$104.1M
1.6M
+17%
Added · +239K sh
Q1 2026
17TWO SIGMA INVESTMENTS, LP
$102.4M
1.6M
+121%
Added · +868K sh
Q1 2026
18WELLS FARGO & COMPANY/MN
$99.3M
1.5M
+9.3%
Added · +130K sh
Q1 2026
19FIRST TRUST ADVISORS LP
$95.8M
1.5M
+47%
Added · +471K sh
Q1 2026
20FULLER & THALER ASSET MANAGEMENT, INC.
$94.7M
1.5M
+6.2%
Added · +86K sh
Q1 2026
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$83.3M
1.3M
+3.8%
Added · +48K sh
Q1 2026
22CONGRESS ASSET MANAGEMENT CO
$82.8M
1.3M
−1.6%
Reduced · −22K sh
Q1 2026
23JANUS HENDERSON GROUP PLC
$79.7M
1.2M
+43%
Added · +370K sh
Q1 2026
24Stephens Investment Management Group LLC
$78.8M
1.2M
−0.4%
Reduced · −5K sh
Q1 2026
25TD ASSET MANAGEMENT INC
$75.5M
1.2M
+25%
Added · +237K 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)
1
funds
Added
23
funds
Reduced
30
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$20.4M
4 insiders
Net
-$20.4M
51 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 8, 2026Torley HelenPRESIDENT AND CEO, DirectorOption exercise (M)2K$23K
Jul 8, 2026Torley HelenPRESIDENT AND CEO, DirectorSell (S)888$70K
Jul 8, 2026Torley HelenPRESIDENT AND CEO, DirectorSell (S)1K$83K
Jul 8, 2026Torley HelenPRESIDENT AND CEO, DirectorOption exercise (M)2K$23K
Jul 1, 2026RAMSAY DAVID AEVP, PRESIDENT, DRUG DELIVERYGrant (A)16K$0
Jul 1, 2026RAMSAY DAVID AEVP, PRESIDENT, DRUG DELIVERYGrant (A)40K$0
Jul 1, 2026Connaughton BernadetteDirectorSell (S)1K$76K
Jul 1, 2026Connaughton BernadetteDirectorSell (S)625$48K
Jul 1, 2026Snellgrove DarrenSVP, Chief Financial OfficerGrant (A)42K$0
Jul 1, 2026Snellgrove DarrenSVP, Chief Financial OfficerGrant (A)127K$0
Jun 30, 2026RAMSAY DAVID AEVP, PRESIDENT, DRUG DELIVERYOption exercise (M)10K$0
Jun 30, 2026RAMSAY DAVID AEVP, PRESIDENT, DRUG DELIVERYTax withholding (F)5K$423K

Institutional ownership over time

411 funds+106 since Q3 2024
0206411Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $6.7B · 2 values withheld

Funds that own HALO also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT206 funds$235.9B
ALPHABET INC-CL AGOOGL203 funds$146.5B
APPLE INCAAPL201 funds$255.1B
AMAZON.COM INCAMZN201 funds$177.4B
NVIDIA CORPNVDA200 funds$332.0B
META PLATFORMS INC-CLASS AMETA199 funds$94.7B
JPMORGAN CHASE & COJPM199 funds$59.8B
BROADCOM INCAVGO198 funds$131.6B
MASTERCARD INC - AMA197 funds$46.1B
JOHNSON & JOHNSONJNJ194 funds$43.5B
COSTCO WHOLESALE CORPCOST194 funds$38.1B
ELI LILLY & COLLY192 funds$65.6B

Ranked by how many of HALO's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HALO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.