ResMed insider activity
What the executives and directors of ResMed actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$24M
net open-market flow, 12 m
0 open-market buys, 12 m
100%
of sale value on 10b5-1 plans, 12 m
3,687 days since an insider bought, whole record
The tape: three years of insider trades
Open-market buy
Discretionary sale
Planned sale (10b5-1)
Reported-price path
Routine
Every marker sits at the price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the grey strip is the routine flow (grants, vestings, tax withholding and gifts) that a headline gets wrong by counting it as selling.
The 109 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Sep 8, 2026 | Farrell Michael J. | 4,991 |
| Aug 7, 2026 | Farrell Michael J. | 4,991 |
| Jul 7, 2026 | Farrell Michael J. | 4,991 |
| Jun 8, 2026 | Farrell Michael J. | 4,991 |
| Jun 1, 2026 | Rider Michael J | 269 |
| May 7, 2026 | Farrell Michael J. | 4,991 |
| Apr 7, 2026 | Farrell Michael J. | 4,991 |
| Mar 9, 2026 | Farrell Michael J. | 4,991 |
| Feb 9, 2026 | Farrell Michael J. | 4,991 |
| Jan 7, 2026 | Farrell Michael J. | 4,991 |
| Dec 8, 2025 | Farrell Michael J. | 4,991 |
| Nov 20, 2025 | TAYLOR RONALD R | 1,073 |
| Nov 20, 2025 | FARRELL PETER C | 536 |
| Nov 20, 2025 | Sandercock Brett | 2,710 |
| Nov 20, 2025 | Farrell Michael J. | 21K |
| Nov 20, 2025 | Burt Carol | 1,073 |
| Nov 20, 2025 | Drexler Karen | 1,073 |
| Nov 20, 2025 | Gill Harjit | 1,073 |
| Nov 20, 2025 | De Witte Jan | 1,073 |
| Nov 20, 2025 | Leong Justin | 1,848 |
| Nov 20, 2025 | DelOrefice Christopher | 1,073 |
| Nov 20, 2025 | Tan Desney | 1,073 |
| Nov 20, 2025 | Hernandez John | 1,073 |
| Nov 20, 2025 | Mowad-Nassar Nicole | 536 |
| Nov 14, 2025 | FARRELL PETER C | 19K |
| Nov 11, 2025 | Farrell Michael J. | 7,897 |
| Nov 11, 2025 | Gill Harjit | 38 |
| Nov 11, 2025 | De Witte Jan | 76 |
| Nov 11, 2025 | Rider Michael J | 1,525 |
| Nov 7, 2025 | Farrell Michael J. | 8,011 |
| Nov 3, 2025 | Sandercock Brett | 2,000 |
| Oct 7, 2025 | Farrell Michael J. | 8,009 |
| Oct 1, 2025 | Sandercock Brett | 2,000 |
| Sep 8, 2025 | Farrell Michael J. | 8,009 |
| Sep 2, 2025 | Sandercock Brett | 2,000 |
| Sep 2, 2025 | Mowad-Nassar Nicole | 241 |
| Aug 18, 2025 | Hernandez John | 2,575 |
| Aug 15, 2025 | Sandercock Brett | 5,462 |
| Aug 15, 2025 | Farrell Michael J. | 12K |
| Aug 15, 2025 | Leong Justin | 5,462 |
| Aug 15, 2025 | Rider Michael J | 2,941 |
| Aug 7, 2025 | Farrell Michael J. | 8,009 |
| Aug 1, 2025 | Sandercock Brett | 2,000 |
| Jul 7, 2025 | Farrell Michael J. | 8,009 |
| Jul 1, 2025 | Sandercock Brett | 2,883 |
| Jun 9, 2025 | Farrell Michael J. | 8,009 |
| Jun 2, 2025 | Rider Michael J | 267 |
| May 7, 2025 | Farrell Michael J. | 8,009 |
| Apr 7, 2025 | Farrell Michael J. | 8,009 |
| Mar 10, 2025 | Ghoshal Kaushik | 9,745 |
| Mar 7, 2025 | Farrell Michael J. | 8,009 |
| Mar 3, 2025 | Ghoshal Kaushik | 9,113 |
| Feb 7, 2025 | Farrell Michael J. | 8,009 |
| Nov 29, 2024 | Rider Michael J | 173 |
| Nov 27, 2024 | Farrell Michael J. | 4,000 |
| Nov 20, 2024 | TAYLOR RONALD R | 1,083 |
| Nov 20, 2024 | FARRELL PETER C | 542 |
| Nov 20, 2024 | SULPIZIO RICHARD | 1,083 |
| Nov 20, 2024 | Burt Carol | 1,083 |
| Nov 20, 2024 | Drexler Karen | 1,083 |
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
The chart, in numbers
| Flow | Shares |
|---|---|
| From holdings | 16K |
| Granted | 28K |
| Vested / exercised | 81K |
| Withheld for tax | 25K |
| Planned sales (10b5-1) | 101K |
Skin in the game
Directly held shares as reported after each trade, indexed to 100 at the start of the window, up to five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
The chart, in numbers
| Insider | Start of the window | Latest reported | Indexed, start = 100 |
|---|---|---|---|
| Farrell Michael J. | 416K | 466K | 112.1 |
| Sandercock Brett | 87K | 83K | 95.7 |
| FARRELL PETER C | 192K | 52K | 27 |
| Leong Justin | 50K | 29K | 58.2 |
| TAYLOR RONALD R | 20K | 25K | 125.6 |
Who holds what
the 14 largest holdings of 18| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| Farrell Michael J. Chief Executive Officer Last trade Sep 8, 2026 | CEO | 473K | – | $16M | net selling over the year: 0 months buying, 12 months selling | Sep 8, 2026 |
| Douglas Robert Andrew President and COO Last trade Aug 15, 2023 | COO | 264K | – | – | Aug 15, 2023 | |
| Sandercock Brett Chief Financial Officer Last trade Apr 1, 2026 | CFO | 83K | – | $2.8M | net selling over the year: 0 months buying, 7 months selling | Apr 1, 2026 |
| FARRELL PETER C Last trade Sep 2, 2026 | Director | 52K | – | $5.0M | net selling over the year: 0 months buying, 8 months selling | Sep 2, 2026 |
| Leong Justin Chief Product Officer Last trade Nov 22, 2024 | Officer | 29K | – | – | Nov 22, 2024 | |
| TAYLOR RONALD R Last trade Feb 19, 2021 | Director | 25K | – | – | Feb 19, 2021 | |
| Ghoshal Kaushik Chief Commercial Officer, SaaS Last trade Mar 10, 2025 | Officer | 20K | – | – | Mar 10, 2025 | |
| SULPIZIO RICHARD Last trade May 30, 2018 | Director | 18K | – | – | May 30, 2018 | |
| Burt Carol Last trade Nov 22, 2021 | Director | 17K | – | – | Nov 22, 2021 | |
| Gill Harjit | Director | 11K | – | – | – | |
| Drexler Karen Last trade Apr 29, 2024 | Director | 11K | – | – | Apr 29, 2024 | |
| BLAISE LUCILE President, Sleep & RC Business Last trade Nov 15, 2022 | Officer | 10K | – | – | Nov 15, 2022 | |
| Rider Michael J Global General Counsel Last trade Feb 4, 2026 | Officer | 9,488 | – | $65K | net selling over the year: 0 months buying, 4 months selling | Feb 4, 2026 |
| Tan Desney | Director | 6,002 | – | – | – |
Open-market trade log
the 60 most recent of 1,070| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Sep 8, 2026 | Farrell Michael J. (CEO) 4,991 shares $222.44 +5.5% since trade filed Sep 10, 2026 | Planned sale (10b5-1) | 4,991 | $222.44 | $1.1M | +5.5% | Sep 10, 2026 |
| Sep 2, 2026 | FARRELL PETER C (Director) 970 shares $234.73 +0.0% since trade filed Sep 4, 2026 | Planned sale (10b5-1) | 970 | $234.73 | $228K | +0.0% | Sep 4, 2026 |
| Aug 7, 2026 | Farrell Michael J. (CEO) 4,991 shares $205.69 +14.1% since trade filed Aug 11, 2026 | Planned sale (10b5-1) | 4,991 | $205.69 | $1.0M | +14.1% | Aug 11, 2026 |
| Aug 5, 2026 | FARRELL PETER C (Director) 8,000 shares $225.00 +4.3% since trade filed Aug 6, 2026 | Planned sale (10b5-1) | 8,000 | $225.00 | $1.8M | +4.3% | Aug 6, 2026 |
| Jul 7, 2026 | Farrell Michael J. (CEO) 4,991 shares $218.55 +7.4% since trade filed Jul 9, 2026 | Planned sale (10b5-1) | 4,991 | $218.55 | $1.1M | +7.4% | Jul 9, 2026 |
| Jun 8, 2026 | Farrell Michael J. (CEO) 4,991 shares $193.96 +21.0% since trade filed Jun 9, 2026 | Planned sale (10b5-1) | 4,991 | $193.96 | $968K | +21.0% | Jun 9, 2026 |
| May 7, 2026 | Farrell Michael J. (CEO) 4,991 shares $207.82 +13.0% since trade filed May 11, 2026 | Planned sale (10b5-1) | 4,991 | $207.82 | $1.0M | +13.0% | May 11, 2026 |
| Apr 7, 2026 | Farrell Michael J. (CEO) 4,991 shares $225.50 +4.1% since trade filed Apr 9, 2026 | Planned sale (10b5-1) | 4,991 | $225.50 | $1.1M | +4.1% | Apr 9, 2026 |
| Apr 1, 2026 | FARRELL PETER C (Director) 2,000 shares $225.00 +4.3% since trade filed Apr 2, 2026 | Planned sale (10b5-1) | 2,000 | $225.00 | $450K | +4.3% | Apr 2, 2026 |
| Apr 1, 2026 | Sandercock Brett (CFO) 1,000 shares $224.31 +4.7% since trade filed Apr 3, 2026 | Planned sale (10b5-1) | 1,000 | $224.31 | $224K | +4.7% | Apr 3, 2026 |
| Mar 9, 2026 | Farrell Michael J. (CEO) 4,991 shares $251.03 −6.5% since trade filed Mar 11, 2026 | Planned sale (10b5-1) | 4,991 | $251.03 | $1.3M | −6.5% | Mar 11, 2026 |
| Mar 4, 2026 | FARRELL PETER C (Director) 2,000 shares $260.22 −9.8% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 2,000 | $260.22 | $520K | −9.8% | Mar 5, 2026 |
| Mar 2, 2026 | Sandercock Brett (CFO) 1,000 shares $254.30 −7.7% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 1,000 | $254.30 | $254K | −7.7% | Mar 3, 2026 |
| Feb 9, 2026 | Farrell Michael J. (CEO) 4,991 shares $273.78 −14.3% since trade filed Feb 10, 2026 | Planned sale (10b5-1) | 4,991 | $273.78 | $1.4M | −14.3% | Feb 10, 2026 |
| Feb 4, 2026 | FARRELL PETER C (Director) 2,000 shares $251.31 −6.6% since trade filed Feb 6, 2026 | Planned sale (10b5-1) | 2,000 | $251.31 | $503K | −6.6% | Feb 6, 2026 |
| Feb 4, 2026 | Rider Michael J (Officer) 50 shares $260.00 −9.7% since trade filed Feb 6, 2026 | Planned sale (10b5-1) | 50 | $260.00 | $13K | −9.7% | Feb 6, 2026 |
| Feb 2, 2026 | Sandercock Brett (CFO) 1,000 shares $257.03 −8.7% since trade filed Feb 3, 2026 | Planned sale (10b5-1) | 1,000 | $257.03 | $257K | −8.7% | Feb 3, 2026 |
| Jan 7, 2026 | FARRELL PETER C (Director) 2,000 shares $248.83 −5.7% since trade filed Jan 9, 2026 | Planned sale (10b5-1) | 2,000 | $248.83 | $498K | −5.7% | Jan 9, 2026 |
| Jan 7, 2026 | Farrell Michael J. (CEO) 4,991 shares $248.46 −5.5% since trade filed Jan 8, 2026 | Planned sale (10b5-1) | 4,991 | $248.46 | $1.2M | −5.5% | Jan 8, 2026 |
| Jan 2, 2026 | Sandercock Brett (CFO) 1,000 shares $241.75 −2.9% since trade filed Jan 5, 2026 | Planned sale (10b5-1) | 1,000 | $241.75 | $242K | −2.9% | Jan 5, 2026 |
| Jan 2, 2026 | Rider Michael J (Officer) 50 shares $241.75 −2.9% since trade filed Jan 5, 2026 | Planned sale (10b5-1) | 50 | $241.75 | $12K | −2.9% | Jan 5, 2026 |
| Dec 8, 2025 | Farrell Michael J. (CEO) 4,991 shares $251.41 −6.6% since trade filed Dec 9, 2025 | Planned sale (10b5-1) | 4,991 | $251.41 | $1.3M | −6.6% | Dec 9, 2025 |
| Dec 3, 2025 | FARRELL PETER C (Director) 2,000 shares $251.47 −6.7% since trade filed Dec 4, 2025 | Planned sale (10b5-1) | 2,000 | $251.47 | $503K | −6.7% | Dec 4, 2025 |
| Dec 1, 2025 | Sandercock Brett (CFO) 1,000 shares $244.16 −3.9% since trade filed Dec 2, 2025 | Planned sale (10b5-1) | 1,000 | $244.16 | $244K | −3.9% | Dec 2, 2025 |
| Dec 1, 2025 | Rider Michael J (Officer) 50 shares $244.16 −3.9% since trade filed Dec 2, 2025 | Planned sale (10b5-1) | 50 | $244.16 | $12K | −3.9% | Dec 2, 2025 |
| Nov 25, 2025 | De Witte Jan (Director) 2,055 shares $255.00 −8.0% since trade filed Nov 26, 2025 | Planned sale (10b5-1) | 2,055 | $255.00 | $524K | −8.0% | Nov 26, 2025 |
| Nov 12, 2025 | FARRELL PETER C (Director) 2,000 shares $252.05 −6.9% since trade filed Nov 13, 2025 | Planned sale (10b5-1) | 2,000 | $252.05 | $504K | −6.9% | Nov 13, 2025 |
| Nov 11, 2025 | De Witte Jan (Director) 487 shares $250.25 −6.2% since trade filed Nov 13, 2025 | Planned sale (10b5-1) | 487 | $250.25 | $122K | −6.2% | Nov 13, 2025 |
| Nov 7, 2025 | Farrell Michael J. (CEO) 8,011 shares $249.75 −6.0% since trade filed Nov 10, 2025 | Planned sale (10b5-1) | 8,011 | $249.75 | $2.0M | −6.0% | Nov 10, 2025 |
| Nov 3, 2025 | Sandercock Brett (CFO) 3,000 shares $247.54 −5.2% since trade filed Nov 4, 2025 | Planned sale (10b5-1) | 3,000 | $247.54 | $743K | −5.2% | Nov 4, 2025 |
| Oct 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $282.85 −17.0% since trade filed Oct 9, 2025 | Planned sale (10b5-1) | 8,009 | $282.85 | $2.3M | −17.0% | Oct 9, 2025 |
| Oct 1, 2025 | Sandercock Brett (CFO) 3,000 shares $274.36 −14.4% since trade filed Oct 3, 2025 | Planned sale (10b5-1) | 3,000 | $274.36 | $823K | −14.4% | Oct 3, 2025 |
| Oct 1, 2025 | Rider Michael J (Officer) 100 shares $274.36 −14.4% since trade filed Oct 2, 2025 | Planned sale (10b5-1) | 100 | $274.36 | $27K | −14.4% | Oct 2, 2025 |
| Sep 8, 2025 | Farrell Michael J. (CEO) 8,009 shares $278.14 −15.6% since trade filed Sep 9, 2025 | Planned sale (10b5-1) | 8,009 | $278.14 | $2.2M | −15.6% | Sep 9, 2025 |
| Sep 2, 2025 | Sandercock Brett (CFO) 3,000 shares $270.77 −13.3% since trade filed Sep 3, 2025 | Planned sale (10b5-1) | 3,000 | $270.77 | $812K | −13.3% | Sep 3, 2025 |
| Aug 18, 2025 | Hernandez John (Director) 2,575 shares $287.10 −18.2% since trade filed Aug 19, 2025 | Discretionary sale | 2,575 | $287.10 | $739K | −18.2% | Aug 19, 2025 |
| Aug 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $279.48 −16.0% since trade filed Aug 11, 2025 | Planned sale (10b5-1) | 8,009 | $279.48 | $2.2M | −16.0% | Aug 11, 2025 |
| Aug 1, 2025 | Sandercock Brett (CFO) 3,000 shares $281.90 −16.7% since trade filed Aug 5, 2025 | Planned sale (10b5-1) | 3,000 | $281.90 | $846K | −16.7% | Aug 5, 2025 |
| Aug 1, 2025 | Rider Michael J (Officer) 50 shares $281.90 −16.7% since trade filed Aug 4, 2025 | Planned sale (10b5-1) | 50 | $281.90 | $14K | −16.7% | Aug 4, 2025 |
| Jul 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $256.72 −8.6% since trade filed Jul 9, 2025 | Planned sale (10b5-1) | 8,009 | $256.72 | $2.1M | −8.6% | Jul 9, 2025 |
| Jul 2, 2025 | FARRELL PETER C (Director) 945 shares $255.49 −8.1% since trade filed Jul 3, 2025 | Planned sale (10b5-1) | 945 | $255.49 | $241K | −8.1% | Jul 3, 2025 |
| Jul 1, 2025 | Sandercock Brett (CFO) 3,883 shares $256.99 −8.7% since trade filed Jul 2, 2025 | Planned sale (10b5-1) | 3,883 | $256.99 | $998K | −8.7% | Jul 2, 2025 |
| Jul 1, 2025 | Rider Michael J (Officer) 66 shares $256.99 −8.7% since trade filed Jul 2, 2025 | Planned sale (10b5-1) | 66 | $256.99 | $17K | −8.7% | Jul 2, 2025 |
| Jun 9, 2025 | Farrell Michael J. (CEO) 8,009 shares $251.21 −6.6% since trade filed Jun 10, 2025 | Planned sale (10b5-1) | 8,009 | $251.21 | $2.0M | −6.6% | Jun 10, 2025 |
| Jun 4, 2025 | FARRELL PETER C (Director) 2,000 shares $247.32 −5.1% since trade filed Jun 6, 2025 | Planned sale (10b5-1) | 2,000 | $247.32 | $495K | −5.1% | Jun 6, 2025 |
| Jun 2, 2025 | Sandercock Brett (CFO) 1,000 shares $243.78 −3.7% since trade filed Jun 3, 2025 | Planned sale (10b5-1) | 1,000 | $243.78 | $244K | −3.7% | Jun 3, 2025 |
| Jun 2, 2025 | Rider Michael J (Officer) 41 shares $243.78 −3.7% since trade filed Jun 3, 2025 | Planned sale (10b5-1) | 41 | $243.78 | $10K | −3.7% | Jun 3, 2025 |
| May 22, 2025 | Sandercock Brett (CFO) 3,644 shares $244.59 −4.0% since trade filed May 27, 2025 | Planned sale (10b5-1) | 3,644 | $244.59 | $891K | −4.0% | May 27, 2025 |
| May 20, 2025 | De Witte Jan (Director) 2,000 shares $243.47 −3.6% since trade filed May 22, 2025 | Planned sale (10b5-1) | 2,000 | $243.47 | $487K | −3.6% | May 22, 2025 |
| May 7, 2025 | FARRELL PETER C (Director) 2,000 shares $242.25 −3.1% since trade filed May 8, 2025 | Planned sale (10b5-1) | 2,000 | $242.25 | $485K | −3.1% | May 8, 2025 |
| May 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $243.23 −3.5% since trade filed May 9, 2025 | Planned sale (10b5-1) | 8,009 | $243.23 | $1.9M | −3.5% | May 9, 2025 |
| Apr 8, 2025 | Sandercock Brett (CFO) 1,000 shares $215.58 +8.9% since trade filed Apr 10, 2025 | Planned sale (10b5-1) | 1,000 | $215.58 | $216K | +8.9% | Apr 10, 2025 |
| Apr 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $209.85 +11.9% since trade filed Apr 9, 2025 | Planned sale (10b5-1) | 8,009 | $209.85 | $1.7M | +11.9% | Apr 9, 2025 |
| Apr 2, 2025 | FARRELL PETER C (Director) 2,000 shares $219.74 +6.8% since trade filed Apr 4, 2025 | Planned sale (10b5-1) | 2,000 | $219.74 | $439K | +6.8% | Apr 4, 2025 |
| Apr 1, 2025 | Rider Michael J (Officer) 64 shares $222.86 +5.3% since trade filed Apr 3, 2025 | Planned sale (10b5-1) | 64 | $222.86 | $14K | +5.3% | Apr 3, 2025 |
| Mar 10, 2025 | Sandercock Brett (CFO) 1,000 shares $230.36 +1.9% since trade filed Mar 11, 2025 | Planned sale (10b5-1) | 1,000 | $230.36 | $230K | +1.9% | Mar 11, 2025 |
| Mar 10, 2025 | Ghoshal Kaushik (Officer) 9,745 shares $239.31 −1.9% since trade filed Mar 11, 2025 | Planned sale (10b5-1) | 9,745 | $239.31 | $2.3M | −1.9% | Mar 11, 2025 |
| Mar 7, 2025 | Farrell Michael J. (CEO) 8,009 shares $229.20 +2.4% since trade filed Mar 11, 2025 | Planned sale (10b5-1) | 8,009 | $229.20 | $1.8M | +2.4% | Mar 11, 2025 |
| Mar 5, 2025 | FARRELL PETER C (Director) 2,000 shares $227.71 +3.1% since trade filed Mar 6, 2025 | Planned sale (10b5-1) | 2,000 | $227.71 | $455K | +3.1% | Mar 6, 2025 |
| Mar 3, 2025 | Ghoshal Kaushik (Officer) 367 shares $235.25 −0.2% since trade filed Mar 4, 2025 | Planned sale (10b5-1) | 367 | $235.25 | $86K | −0.2% | Mar 4, 2025 |
“Since trade” compares with the latest insider-implied price, not a market quote: these pages are built from filings alone. A role here is the one on that day's Form 4, so somebody promoted since appears under both titles.
Filing hygiene
191 Forms 4, 3 years
2 filed late
3 amendments
2.8 avg. days to file
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.