Beta95% was sold under disclosed trading plans, 1% to cover taxes, 4% with no plan disclosed. The largest seller, Helen Torley (President and CEO, Director), sold $42.1M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
A share of stake is shown for 0 of the 5 officers and directors who sold. 15 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: Helen Torley, Matthew Posard, Bernadette Connaughton, Jeffrey Henderson, Mark Snyder, Akiko Miyashita, Nicole LaBrosse, Barbara Duncan, Mahesh Krishnan, Cortney Caudill, David Ramsay, James Daly, James Lang, Darren Snellgrove and Dannielle Appelhans (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Helen Torley President and CEO, Director | 20,000 | $109.40 | n/a | n/a | Oct 8, 2026 | Oct 8, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Helen Torley President and CEO, Director | 20,000 | $111.55 | n/a | n/a | Oct 7, 2026 | Oct 8, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Helen Torley President and CEO, Director | 20,000 | $109.58 | n/a | n/a | Oct 6, 2026 | Oct 8, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Matthew Posard Director | 5,230 | $108.54 | n/a | n/a | Oct 1, 2026 | Oct 2, 2026 |
"% of total stake" is the shares in an event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings are not confirmed, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.
Yes. Helen Torley sold 508K shares ($42.1M) in the past 12 months, all of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 95% of sales by value ran under 10b5-1 trading plans disclosed in the filings, 0.6% were to cover taxes and 4% had no disclosed plan. A trading plan schedules sales in advance.
No. Officers and directors reported no purchases in the past 12 months.
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Helen Torley President and CEO, Director | $42.1M 508K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Matthew Posard Director | $2.6M 24K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Cortney Caudill SVP, Chief Operating Officer | $2.2M 33K shares | Not confirmedshare of stake is being verified. Why | 12% to cover taxes 88% no plan disclosed |
| Bernadette Connaughton Director | $839K 11K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Mahesh Krishnan Director | $548K 7.3K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 16, 2025 | Sold | Held Oct 16, 2026 | Still held |
|---|---|---|---|---|
Helen Torley!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Helen Torley are complete. President and CEO, Director | n/a | −508K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Helen TorleyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Helen Torley are complete; balances and unit counts will be added when the check is finished. −25Kgifted (net of own trusts) −69Kwithheld by the company for taxes | ||||
Matthew Posard!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Matthew Posard are complete. Director | n/a | −24K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Matthew PosardHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Matthew Posard are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Bernadette Connaughton!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Bernadette Connaughton are complete. Director | n/a | −11K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Bernadette ConnaughtonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Bernadette Connaughton are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Jeffrey Henderson!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jeffrey Henderson are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jeffrey HendersonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jeffrey Henderson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Mark Snyder!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Snyder are complete. SVP, Chief Legal Officer | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Mark SnyderHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Snyder are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −23Kwithheld by the company for taxes | ||||
Akiko Miyashita!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Akiko Miyashita are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Akiko MiyashitaHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Akiko Miyashita are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Nicole LaBrosse!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Nicole LaBrosse are complete. SVP, Chief Financial Officer | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Nicole LaBrosseHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Nicole LaBrosse are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −19Kwithheld by the company for taxes | ||||
Barbara Duncan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Barbara Duncan are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Barbara DuncanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Barbara Duncan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Mahesh Krishnan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mahesh Krishnan are complete. Director | n/a | −7.3K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Mahesh KrishnanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mahesh Krishnan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Cortney Caudill!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Cortney Caudill are complete. SVP, Chief Operating Officer | n/a | −33K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Cortney CaudillHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Cortney Caudill are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −1Kwithheld by the company for taxes | ||||
David Ramsay!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Ramsay are complete. EVP, President, Drug Delivery | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for David RamsayHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Ramsay are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −5.4Kwithheld by the company for taxes | ||||
James Daly!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James Daly are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for James DalyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Daly are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
James Lang!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for James Lang are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for James LangHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Lang are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Darren Snellgrove!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Darren Snellgrove are complete. SVP, Chief Financial Officer | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Darren SnellgroveHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Darren Snellgrove are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Dannielle Appelhans!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Dannielle Appelhans are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Dannielle AppelhansHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Dannielle Appelhans are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Holdings and share of stake for Halozyme Therapeutics, Inc. are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $48.4M across 584,472 shares. Plan status and stated purpose are separate questions, and a sale can have both.
The lighter segment is sales with no plan disclosed in the filing ($2.2M), including tax-related sales outside a plan.
Sales with no 10b5-1 plan and no tax reference in the filing. $2.0M of it is Cortney Caudill. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Cortney Caudill, Mar 9, 2026
$278K of sales (0.6%) cite tax obligations in their footnotes. Separately, 117,694 shares ($9.0M) were withheld by the company for taxes, which isn't a market sale. Example: Cortney Caudill, Nov 1, 2025
Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Helen Torley President and CEO, Director | 508K | $42.1M | 100% | 87% | Nov 10, 2025 to Oct 8, 2026 |
| Matthew Posard Director | 24K | $2.6M | 100% | 5% | Sep 16, 2026 to Oct 1, 2026 |
| Cortney Caudill SVP, Chief Operating Officer | 33K | $2.2M | 0% | 5% | Nov 1, 2025 to Mar 10, 2026 |
| Bernadette Connaughton Director | 11K | $839K | 100% | 2% | Nov 10, 2025 to Aug 10, 2026 |
| Mahesh Krishnan Director | 7.3K | $548K | 100% | 1% | Jun 29, 2026 to Jun 29, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $0 | $0 | $0 | $0 |
| Nov 2025 | $4.6M | $4.3M | $278K | $0 |
| Dec 2025 | $1.2M | $1.2M | $0 | $0 |
| Jan 2026 | $141K | $141K | $0 | $0 |
| Feb 2026 | $3.9M | $3.9M | $0 | $0 |
| Mar 2026 | $5.4M | $3.5M | $0 | $2.0M |
| Apr 2026 | $3.2M | $3.2M | $0 | $0 |
| May 2026 | $3.5M | $3.5M | $0 | $0 |
| Jun 2026 | $4.0M | $4.0M | $0 | $0 |
| Jul 2026 | $278K | $278K | $0 | $0 |
| Aug 2026 | $6.4M | $6.4M | $0 | $0 |
| Sep 2026 | $8.5M | $8.5M | $0 | $0 |
| Oct 2026 | $7.2M | $7.2M | $0 | $0 |
In line with the past 5 years. 5 insiders sold; the average is 5 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 16, 2026 Latest 12 months | 584K | 5 | $48.4M |
| Oct 16, 2025 1 year earlier | 375K | 5 | $23.9M |
| Oct 16, 2024 2 years earlier | 425K | 4 | $21.5M |
| Oct 17, 2023 3 years earlier | 434K | 6 | $20.8M |
| Oct 17, 2022 4 years earlier | 82K | 2 | $3.3M |
| Oct 17, 2021 5 years earlier | 829K | 6 | $35.2M |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Halozyme Therapeutics, Inc. are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 773 Forms 3, 4 and 5 on record for Halozyme Therapeutics, Inc. (SEC CIK 1159036), filed from Feb 7, 2002 to Oct 8, 2026; 56 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages. 3 older filings exist only on paper and could not be read.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
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