HALO Institutional Ownership & Shareholders
HALOZYME THERAPEUTICS INC (HALO) is currently held by 662 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $9.78B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of HALO tracked by InsiderSet, reporting ownership valued at approximately $1.04B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.47B, representing an estimated gain of +41.92% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 37% of the total disclosed HALO value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in HALOZYME THERAPEUTICS INC (HALO).
This page ranks the largest institutional HALO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
662
Total Reported Value
$9.78B
Largest Holder
Blackrock, Inc.
Largest Position
$1.04B
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
67
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 13,271,095 | $1,038,728,610 | $1,474,153,233 | +$435,424,623 | +41.92% | |
| Vanguard Capital Management Llc | 0.01% | 5,351,312 | $418,847,190 | $594,423,737 | +$175,576,547 | +41.92% | |
| Vanguard Portfolio Management Llc | 0.02% | 5,299,008 | $414,753,356 | $588,613,809 | +$173,860,453 | +41.92% | |
| State Street Corp | 0.01% | 5,179,434 | $405,379,779 | $575,331,529 | +$169,951,750 | +41.92% | |
| Congress Asset Management Co | 1.63% | 2,281,615 | $251,890,296 | $253,441,794 | +$1,551,498 | +0.62% | |
| Invesco Ltd. | 0.02% | 3,177,997 | $248,741,825 | $353,011,907 | +$104,270,082 | +41.92% | |
| Morgan Stanley | 0.01% | 2,832,391 | $221,691,420 | $314,621,992 | +$92,930,572 | +41.92% | |
| Boston Partners | 0.19% | 2,773,568 | $216,820,544 | $308,087,933 | +$91,267,389 | +42.09% | |
| Bank Of America Corp | 0.01% | 2,740,561 | $214,503,722 | $304,421,516 | +$89,917,794 | +41.92% | |
| Geode Capital Management, Llc | 0.01% | 2,519,951 | $197,281,725 | $279,916,157 | +$82,634,432 | +41.89% | |
| William Blair Investment Management, Llc | 0.59% | 2,511,050 | $196,539,884 | $278,927,434 | +$82,387,550 | +41.92% | |
| Snyder Capital Management L P | 3.24% | 2,396,101 | $187,542,825 | $266,158,899 | +$78,616,074 | +41.92% | |
| Dimensional Fund Advisors Lp | 0.03% | 2,089,567 | $163,542,164 | $232,109,102 | +$68,566,938 | +41.93% | |
| D. E. Shaw & Co., Inc. | 0.10% | 2,006,479 | $157,047,112 | $222,879,687 | +$65,832,575 | +41.92% | |
| Los Angeles Capital Management Llc | 0.56% | 1,938,035 | $151,690,000 | $215,276,928 | +$63,586,928 | +41.92% | |
| Royal London Asset Management Ltd | 0.26% | 1,810,815 | $141,732,491 | $201,145,330 | +$59,412,839 | +41.92% | |
| Arrowstreet Capital, Limited Partnership | 0.06% | 1,704,623 | $133,420,842 | $189,349,523 | +$55,928,681 | +41.92% | |
| Two Sigma Investments, Lp | 0.10% | 1,653,285 | $129,402,617 | $183,646,898 | +$54,244,281 | +41.92% | |
| Ubs Group Ag | 0.02% | 1,492,224 | $116,796,372 | $165,756,242 | +$48,959,870 | +41.92% | |
| Fuller & Thaler Asset Management, Inc. | 0.32% | 1,491,004 | $116,700,910 | $165,620,724 | +$48,919,814 | +41.92% | |
| Norges Bank | 0.01% | 1,483,648 | $116,125,129 | $164,803,620 | +$48,678,491 | +41.92% | |
| Wasatch Advisors Lp | 0.86% | 1,049,647 | $115,881,029 | $116,594,789 | +$713,760 | +0.62% | |
| First Trust Advisors Lp | 0.07% | 1,417,063 | $110,913,469 | $157,407,358 | +$46,493,889 | +41.92% | |
| Lsv Asset Management | 0.20% | 1,410,257 | $110,381,000 | $156,651,348 | +$46,270,348 | +41.92% | |
| Alliancebernstein L.P. | 0.04% | 1,696,538 | $109,647,251 | $188,451,441 | +$78,804,190 | +71.87% | |
| Stephens Investment Management Group Llc | 1.17% | 1,392,819 | $109,015,943 | $154,714,335 | +$45,698,392 | +41.92% | |
| Wells Fargo & Company/Mn | 0.02% | 1,390,428 | $108,828,836 | $154,448,742 | +$45,619,906 | +41.92% | |
| Gw&K Investment Management, Llc | 0.83% | 1,353,883 | $105,969,000 | $150,389,324 | +$44,420,324 | +41.92% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,322,613 | $103,520,920 | $146,915,852 | +$43,394,932 | +41.92% | |
| Goldman Sachs Group Inc | 0.01% | 1,270,344 | $99,429,825 | $141,109,812 | +$41,679,987 | +41.92% | |
| Nomura Asset Management International Inc. | 0.14% | 1,183,799 | $92,656,000 | $131,496,393 | +$38,840,393 | +41.92% | |
| Td Asset Management Inc | 0.08% | 1,115,730 | $87,328,187 | $123,935,288 | +$36,607,101 | +41.92% | |
| Epoch Investment Partners, Inc. | 0.49% | 1,098,532 | $85,982,100 | $122,024,935 | +$36,042,835 | +41.92% | |
| Northern Trust Corp | 0.01% | 1,087,613 | $85,127,470 | $120,812,052 | +$35,684,582 | +41.92% | |
| Boston Trust Walden Corp | 0.65% | 1,083,062 | $84,771,263 | $120,306,527 | +$35,535,264 | +41.92% | |
| Caisse De Depot Et Placement Du Quebec | 0.12% | 1,072,439 | $83,939,801 | $119,126,524 | +$35,186,723 | +41.92% | |
| Janus Henderson Group Plc | 0.04% | 1,233,658 | $79,741,989 | $137,034,731 | +$57,292,742 | +71.85% | |
| Assenagon Asset Management S.A. | 0.10% | 997,643 | $78,085,518 | $110,818,184 | +$32,732,666 | +41.92% | |
| Federated Hermes, Inc. | 0.11% | 962,041 | $75,298,949 | $106,863,514 | +$31,564,565 | +41.92% | |
| Bank Of Montreal | 0.03% | 942,432 | $73,764,153 | $104,685,347 | +$30,921,194 | +41.92% | |
| Mizuho Markets Cayman Lp | 2.45% | 834,500 | $65,316,315 | $92,696,260 | +$27,379,945 | +41.92% | |
| Bank Of New York Mellon Corp | 0.01% | 802,245 | $62,791,708 | $89,113,375 | +$26,321,667 | +41.92% | |
| Aqr Capital Management Llc | 0.02% | 785,556 | $61,485,452 | $87,259,560 | +$25,774,108 | +41.92% | |
| Vanguard Fiduciary Trust Co | 0.01% | 765,692 | $59,930,713 | $85,053,067 | +$25,122,354 | +41.92% | |
| Gotham Asset Management, Llc | 0.13% | 739,273 | $57,862,898 | $82,118,445 | +$24,255,547 | +41.92% | |
| Jane Street Group, Llc | 0.03% | 694,684 | $54,372,917 | $77,165,499 | +$22,792,582 | +41.92% | |
| Handelsbanken Fonder Ab | 0.14% | 631,899 | $49,459,000 | $70,191,341 | +$20,732,341 | +41.92% | |
| Sei Investments Co | 0.04% | 551,116 | $43,135,607 | $61,217,965 | +$18,082,358 | +41.92% | |
| Royal Bank Of Canada | 0.01% | 545,761 | $42,716,000 | $60,623,132 | +$17,907,132 | +41.92% | |
| Kennedy Capital Management Llc | 0.76% | 544,994 | $42,656,680 | $60,537,934 | +$17,881,254 | +41.92% |
Frequently asked questions about HALO
Who are the largest institutional holders of HALO?
The largest institutional holders of HALO reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, State Street Corp, and Congress Asset Management Co. InsiderSet ranks institutional holders by their latest reported HALO position.
What is HALO institutional ownership?
This page tracks HALO positions reported by institutional investment managers through SEC Form 13F. HALOZYME THERAPEUTICS INC (HALO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own HALO?
InsiderSet currently tracks 662 institutional managers reporting HALO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of HALO shareholders.
How much HALO stock do institutions own?
Institutional investment managers disclosed approximately $9.78B in HALO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was HALO institutional ownership last updated?
The latest HALO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional HALO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its HALO position after the reporting date.
Are institutions buying or selling HALO?
Institutional buying and selling can be analyzed by comparing HALO positions across consecutive 13F reporting periods. InsiderSet's HALO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View HALO ownership changes.
How has HALO institutional ownership changed over time?
InsiderSet tracks HALO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.