Company · Ownership research

HALOZYME THERAPEUTICS, INC. HALO

CIK 0001159036 · CUSIP 40637H109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 40637H109 (HALO), not CUSIP 40637H909 (HALO), CUSIP 40637H959 (HALO), and does not merge CUSIPs.

This page lists the top 20 of 374 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$266.61M 2,414,434 shares	0.01%	-105.52K(-4.20%)Reduced	SEC filing ↗ Nov 6, 2026	▾
02	CONGRESS ASSET MANAGEMENT CO CIK 897378 · View history	$251.89M 2,281,615 shares	1.63%	+1.05M(+85.60%)Added	SEC filing ↗ Oct 6, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$234.21M 2,121,396 shares	0.04%	+31.83K(+1.50%)Added	SEC filing ↗ Nov 4, 2026	▾
04	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$178.46M 1,616,472 shares	0.58%	-894.58K(-35.60%)Reduced	SEC filing ↗ Nov 6, 2026	▾
05	LSV ASSET MANAGEMENT CIK 1050470 · View history	$166.38M 1,507,085 shares	0.31%	+96.83K(+6.90%)Added	SEC filing ↗ Nov 6, 2026	▾
06	WASATCH ADVISORS LP CIK 814133 · View history	$115.88M 1,049,647 shares	0.86%	+1.05MNew	SEC filing ↗ Oct 13, 2026	▾
07	Boston Trust Walden Corp CIK 1534866 · View history	$114.35M 1,035,813 shares	0.92%	-47.25K(-4.40%)Reduced	SEC filing ↗ Oct 30, 2026	▾
08	Bank of New York Mellon Corp CIK 1390777 · View history	$85.13M 771,082 shares	0.01%	-31.16K(-3.90%)Reduced	SEC filing ↗ Nov 5, 2026	▾
09	CITIGROUP INC CIK 831001 · View history	$57.89M 524,326 shares	0.03%	+190.55K(+57.10%)Added	SEC filing ↗ Nov 4, 2026	▾
10	BARCLAYS PLC CIK 312069 · View history	$51.46M 466,103 shares	0.02%	+160.44K(+52.50%)Added	SEC filing ↗ Nov 6, 2026	▾
11	Assenagon Asset Management S.A. CIK 1546007 · View history	$43.81M 396,866 shares	0.04%	-600.78K(-60.20%)Reduced	SEC filing ↗ Oct 15, 2026	▾
12	Retirement Systems of Alabama CIK 1593051 · View history	$38.29M 346,841 shares	0.11%	-5.61K(-1.60%)Reduced	SEC filing ↗ Nov 4, 2026	▾
13	BI Asset Management Fondsmaeglerselskab A/S CIK 1778131 · View history	$36.94M 334,615 shares	0.28%	+128.05K(+62.00%)Added	SEC filing ↗ Oct 22, 2026	▾
14	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$28.59M 258,955 shares	0.01%	-9.07K(-3.40%)Reduced	SEC filing ↗ Nov 2, 2026	▾
15	Arbejdsmarkedets Tillaegspension CIK 2105395 · View history	$26.10M 236,400 shares	0.66%	-178.90K(-43.10%)Reduced	SEC filing ↗ Oct 30, 2026	▾
16	WEDGE CAPITAL MANAGEMENT L L P/NC CIK 1015308 · View history	$25.94M 234,921 shares	0.45%	-168.90K(-41.80%)Reduced	SEC filing ↗ Oct 13, 2026	▾
17	LPL Financial LLC CIK 1403438 · View history	$25.44M 230,422 shares	0.01%	+26.86K(+13.20%)Added	SEC filing ↗ Nov 6, 2026	▾
18	Russell Investments Group, Ltd. CIK 1692234 · View history	$19.50M 176,594 shares	0.02%	-71.86K(-28.90%)Reduced	SEC filing ↗ Nov 6, 2026	▾
19	KORNITZER CAPITAL MANAGEMENT INC /KS CIK 898358 · View history	$18.50M 167,544 shares	0.39%	-18.83K(-10.10%)Reduced	SEC filing ↗ Nov 3, 2026	▾
20	ASSETMARK, INC CIK 1344551 · View history	$18.41M 166,721 shares	0.03%	-7.61K(-4.40%)Reduced	SEC filing ↗ Oct 21, 2026	▾

Showing 20 / 374 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

374

Cancelled or null records excluded

Disclosed shares

21,830,468

Not deduplicated across managers

Disclosed value

$2.40B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

HALOZYME THERAPEUTICS, INC. · Q3 2026

Explore all 374 reporting institutions.

This page includes 20 of 374 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 374 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"40637H109","quarter":"2026Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.