Follow the people · Insider
Masaru Matsuda
Masaru Matsuda files insider transactions with the SEC as an officer of Arcutis Biotherapeutics. We hold 6 disclosed purchases and sales filed since 12 February 2020, 2 of them in the last 90 days.
- Files for 2 companiesARQT, HALO
- Disclosed buys and sells6 in all, 2 in the last 90 days
- Last disclosure10 September 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 3 January 2022 — 8 September 2026Officer · Arcutis Biotherapeutics 71 Form 4 lines · source: SEC Form 4
- Filed 10 February 2020 — 4 September 2021SVP, General Counsel · Halozyme Therapeutics 19 Form 4 lines · source: SEC Form 4
Every transaction
90 transactions from SEC Form 4 — one row each, sort any column, open a row for the filing| 8 Sep 2026 | 10 Sep 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 9,989 shares | down −2.1% | up +2.2% |
| 3 Aug 2026 | 5 Aug 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 1,230 shares | down −7.9% | down −11.9% |
| 4 May 2026 | 6 May 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 7,372 shares | up +1.7% | down −1.2% |
| 4 May 2026 | 6 May 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 884 shares | up +1.7% | down −1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 6,553 shares | down −3.5% | up +1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 193 shares | down −3.5% | up +1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 1,987 shares | down −3.5% | up +1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 6,553 shares | down −3.5% | up +1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 193 shares | down −3.5% | up +1.2% |
| 2 Mar 2026 | 3 Mar 2026SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 1,987 shares | down −3.5% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 37,000 shares | down −11.4% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | sold on the open market | Arcutis Biotherapeutics | 3,325 shares | down −11.4% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 97,000 shares | down −11.4% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 97,000 shares | down −11.4% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 37,000 shares | down −11.4% | up +1.2% |
| 27 Feb 2026 | 3 Mar 2026SEC Form 4 | 4 d | sold on the open market | Arcutis Biotherapeutics | 3,325 shares | down −11.4% | up +1.2% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 7,983 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 8,562 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 19,379 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 4,714 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 7,983 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 8,562 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 19,379 shares | down −6.6% | down −8.4% |
| 2 Feb 2026 | 4 Feb 2026SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 4,714 shares | down −6.6% | down −8.4% |
| 1 Dec 2025 | 3 Dec 2025SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 1,657 shares | down −21.4% | down −20.3% |
| 19 Nov 2025 | 21 Nov 2025SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 989 shares | down −14.4% | down −19.0% |
| 19 Nov 2025 | 21 Nov 2025SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 1,561 shares | down −14.4% | down −19.0% |
| 3 Nov 2025 | 5 Nov 2025SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 7,165 shares | down −3.5% | down −2.0% |
| 3 Nov 2025 | 5 Nov 2025SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 43 shares | down −3.5% | down −2.0% |
| 4 Sep 2025 | 8 Sep 2025SEC Form 4 | 4 d | sold on the open market | Arcutis Biotherapeutics | 36,130 shares | up +47.3% | up +37.8% |
| 4 Aug 2025 | 5 Aug 2025SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 6,330 shares | up +64.5% | up +55.9% |
| 28 May 2025 | 29 May 2025SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 1,800 shares | up +75.9% | up +74.7% |
| 2 May 2025 | 5 May 2025SEC Form 4 | 3 d | sold on the open market | Arcutis Biotherapeutics | 5,030 shares | up +56.7% | up +55.0% |
| 3 Mar 2025 | 4 Mar 2025SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 3,263 shares | up +86.2% | up +78.2% |
| 28 Feb 2025 | 4 Mar 2025SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 89,000 shares | up +74.5% | up +78.2% |
| 28 Feb 2025 | 4 Mar 2025SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 34,000 shares | up +74.5% | up +78.2% |
| 3 Feb 2025 | 4 Feb 2025SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 8,338 shares | up +88.2% | up +82.3% |
| 30 Nov 2024 | 3 Dec 2024SEC Form 4 | 3 d | bought on the open market | Arcutis Biotherapeutics | 1,657 shares | up +83.2% | up +94.7% |
| 19 Nov 2024 | 19 Nov 2024SEC Form 4 | 0 d | sold on the open market | Arcutis Biotherapeutics | 1,775 shares | up +136.7% | up +136.7% |
| 18 Nov 2024 | 19 Nov 2024SEC Form 4 | 1 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +153.3% | up +136.7% |
| 4 Nov 2024 | 5 Nov 2024SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 5,015 shares | up +173.9% | up +156.8% |
| 2 Aug 2024 | 5 Aug 2024SEC Form 4 | 3 d | sold on the open market | Arcutis Biotherapeutics | 5,220 shares | up +158.2% | up +162.6% |
| 31 May 2024 | 3 Dec 2024SEC Form 4 | 186 d | bought on the open market | Arcutis Biotherapeutics | 4,000 shares | up +185.7% | up +94.7% |
| 28 May 2024 | 29 May 2024SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 1,775 shares | up +169.0% | up +178.1% |
| 27 May 2024 | 29 May 2024SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +160.8% | up +178.1% |
| 2 May 2024 | 3 May 2024SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 5,016 shares | up +177.7% | up +198.6% |
| 4 Mar 2024 | 6 Mar 2024SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 3,760 shares | up +118.1% | up +128.8% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | returned to the issuernot a trade | Arcutis Biotherapeuticsderivative | 185,000 shares | up +246.2% | up +199.7% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | returned to the issuernot a trade | Arcutis Biotherapeuticsderivative | 35,300 shares | up +246.2% | up +199.7% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | returned to the issuernot a trade | Arcutis Biotherapeuticsderivative | 55,800 shares | up +246.2% | up +199.7% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeutics | 74,000 shares | up +246.2% | up +199.7% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeutics | 17,650 shares | up +246.2% | up +199.7% |
| 13 Feb 2024 | 15 Feb 2024SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeutics | 27,900 shares | up +246.2% | up +199.7% |
| 12 Jan 2024 | 17 Jan 2024SEC Form 4 | 5 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 176,000 shares | up +556.2% | up +615.1% |
| 12 Jan 2024 | 17 Jan 2024SEC Form 4 | 5 d | was grantednot a trade | Arcutis Biotherapeutics | 28,000 shares | up +556.2% | up +615.1% |
| 21 Nov 2023 | 21 Nov 2023SEC Form 4 | 0 d | sold on the open market | Arcutis Biotherapeutics | 1,850 shares | up +1163.8% | up +1163.8% |
| 18 Nov 2023 | 21 Nov 2023SEC Form 4 | 3 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +1070.8% | up +1163.8% |
| 31 May 2023 | 2 Jun 2023SEC Form 4 | 2 d | sold on the open market | Arcutis Biotherapeutics | 1,830 shares | up +218.0% | up +191.3% |
| 31 May 2023 | 2 Jun 2023SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeutics | 1,463 shares | up +218.0% | up +191.3% |
| 27 May 2023 | 2 Jun 2023SEC Form 4 | 6 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +184.3% | up +191.3% |
| 2 Mar 2023 | 6 Mar 2023SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 55,800 shares | up +51.0% | up +64.3% |
| 2 Mar 2023 | 6 Mar 2023SEC Form 4 | 4 d | sold on the open market | Arcutis Biotherapeutics | 1,416 shares | up +51.0% | up +64.3% |
| 2 Mar 2023 | 6 Mar 2023SEC Form 4 | 4 d | sold on the open market | Arcutis Biotherapeutics | 18 shares | up +51.0% | up +64.3% |
| 2 Mar 2023 | 6 Mar 2023SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 21,000 shares | up +51.0% | up +64.3% |
| 21 Nov 2022 | 22 Nov 2022SEC Form 4 | 1 d | sold on the open market | Arcutis Biotherapeutics | 1,720 shares | up +31.2% | up +30.4% |
| 18 Nov 2022 | 22 Nov 2022SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +27.6% | up +30.4% |
| 2 Jun 2022 | 2 Jun 2022SEC Form 4 | 0 d | sold on the open market | Arcutis Biotherapeutics | 1,795 shares | up +16.1% | up +16.1% |
| 27 May 2022 | 2 Jun 2022SEC Form 4 | 6 d | was grantednot a trade | Arcutis Biotherapeutics | 4,875 shares | up +13.8% | up +16.1% |
| 3 Mar 2022 | 7 Mar 2022SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 35,300 shares | up +35.2% | up +44.7% |
| 3 Mar 2022 | 7 Mar 2022SEC Form 4 | 4 d | was grantednot a trade | Arcutis Biotherapeutics | 13,300 shares | up +35.2% | up +44.7% |
| 3 Jan 2022 | 5 Jan 2022SEC Form 4 | 2 d | was grantednot a trade | Arcutis Biotherapeuticsderivative | 185,000 shares | up +4.8% | up +17.7% |
| 4 Sep 2021 | 7 Sep 2021SEC Form 4 | 3 d | exercised options overnot a trade | Halozyme Therapeuticsderivative | 6,883 shares | up +153.9% | up +149.6% |
| 4 Sep 2021 | 7 Sep 2021SEC Form 4 | 3 d | exercised options overnot a trade | Halozyme Therapeutics | 6,883 shares | up +153.9% | up +149.6% |
| 4 Sep 2021 | 7 Sep 2021SEC Form 4 | 3 d | had shares withheld for taxnot a trade | Halozyme Therapeutics | 3,412 shares | up +153.9% | up +149.6% |
| 15 Feb 2021 | 17 Feb 2021SEC Form 4 | 2 d | was grantednot a trade | Halozyme Therapeuticsderivative | 23,311 shares | up +115.1% | up +117.7% |
| 15 Feb 2021 | 17 Feb 2021SEC Form 4 | 2 d | was grantednot a trade | Halozyme Therapeuticsderivative | 13,544 shares | up +115.1% | up +117.7% |
| 12 Feb 2021 | 12 Feb 2021SEC Form 4 | 0 d | exercised options overnot a trade | Halozyme Therapeutics | 4,129 shares | up +115.1% | up +115.1% |
| 12 Feb 2021 | 12 Feb 2021SEC Form 4 | 0 d | had shares withheld for taxnot a trade | Halozyme Therapeutics | 2,047 shares | up +115.1% | up +115.1% |
| 12 Feb 2021 | 12 Feb 2021SEC Form 4 | 0 d | exercised options overnot a trade | Halozyme Therapeuticsderivative | 4,129 shares | up +115.1% | up +115.1% |
| 10 Feb 2021 | 12 Feb 2021SEC Form 4 | 2 d | exercised options overnot a trade | Halozyme Therapeutics | 6,257 shares | up +111.9% | up +115.1% |
| 10 Feb 2021 | 12 Feb 2021SEC Form 4 | 2 d | had shares withheld for taxnot a trade | Halozyme Therapeutics | 3,203 shares | up +111.9% | up +115.1% |
| 10 Feb 2021 | 12 Feb 2021SEC Form 4 | 2 d | exercised options overnot a trade | Halozyme Therapeuticsderivative | 6,257 shares | up +111.9% | up +115.1% |
| 4 Sep 2020 | 4 Sep 2020SEC Form 4 | 0 d | exercised options overnot a trade | Halozyme Therapeuticsderivative | 6,884 shares | up +287.0% | up +287.0% |
| 4 Sep 2020 | 4 Sep 2020SEC Form 4 | 0 d | exercised options overnot a trade | Halozyme Therapeutics | 6,884 shares | up +287.0% | up +287.0% |
| 4 Sep 2020 | 4 Sep 2020SEC Form 4 | 0 d | had shares withheld for taxnot a trade | Halozyme Therapeutics | 2,380 shares | up +287.0% | up +287.0% |
| 12 Feb 2020 | 13 Feb 2020SEC Form 4 | 1 d | exercised options overnot a trade | Halozyme Therapeuticsderivative | 4,130 shares | up +436.0% | up +428.9% |
| 12 Feb 2020 | 13 Feb 2020SEC Form 4 | 1 d | exercised options overnot a trade | Halozyme Therapeutics | 4,130 shares | up +436.0% | up +428.9% |
| 12 Feb 2020 | 13 Feb 2020SEC Form 4 | 1 d | had shares withheld for taxnot a trade | Halozyme Therapeutics | 1,681 shares | up +436.0% | up +428.9% |
| 10 Feb 2020 | 12 Feb 2020SEC Form 4 | 2 d | was grantednot a trade | Halozyme Therapeuticsderivative | 53,211 shares | up +436.5% | up +436.0% |
| 10 Feb 2020 | 12 Feb 2020SEC Form 4 | 2 d | was grantednot a trade | Halozyme Therapeuticsderivative | 25,026 shares | up +436.5% | up +436.0% |
Both percentages are the stock’s move, not Masaru Matsuda’s return: a disclosure gives a band, never an amount, so nobody can say how much was bought or what it made. They run to the last close we hold — 11 Sep 2026, except where a name has since delisted, when the row names its own last session. We publish no close, no volume and no dollar figure behind them. 90 of the 90 rows shown carry a percentage; the rest are dashes with the reason on the row.
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.
Some filings reach us as photographs of paper rather than as a form we can read as text. Those are shown here only once they have been read and checked, so this page can hold fewer lines than the filings behind it contain. The link on every row opens the original document, which is always the full record.