Arthur J. Gallagher & Co. insider activity
What the executives and directors of Arthur J. Gallagher & Co. actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$28M
net open-market flow, 12 m
4 open-market buys, 12 m
0%
of sale value on 10b5-1 plans, 12 m
323 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 183 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Sep 8, 2026 | GALLAGHER J PATRICK JR | 50K |
| Sep 8, 2026 | Gallagher Patrick Murphy | 50K |
| Sep 2, 2026 | Hudson Scott R | 12K |
| Sep 1, 2026 | Miskel Christopher C. | 153 |
| Aug 19, 2026 | Mead Christopher E | 3,500 |
| Aug 16, 2026 | Bloom Mark H. | 1,887 |
| Aug 5, 2026 | Gallagher Patrick Murphy | 24K |
| Jul 1, 2026 | GALLAGHER THOMAS JOSEPH | 352 |
| Jul 1, 2026 | Jain Vishal | 2,163 |
| Jul 1, 2026 | Pesch Michael Robert | 356 |
| Jun 1, 2026 | JOHNSON DAVID S | 237 |
| Jun 1, 2026 | Miskel Christopher C. | 194 |
| May 26, 2026 | GALLAGHER J PATRICK JR | 15K |
| May 26, 2026 | Gallagher Patrick Murphy | 15K |
| May 12, 2026 | ROSENTHAL NORMAN L | 1,110 |
| May 12, 2026 | JOHNSON DAVID S | 1,110 |
| May 12, 2026 | NICOLETTI RALPH J | 1,110 |
| May 12, 2026 | Caplan Deborah H | 1,110 |
| May 12, 2026 | Coldman David John | 1,110 |
| May 12, 2026 | Miskel Christopher C. | 1,110 |
| May 12, 2026 | Clarke Teresa Hillary | 1,110 |
| May 12, 2026 | Harries Richard de Winton Wilkin | 1,110 |
| Mar 31, 2026 | CARY RICHARD C | 611 |
| Mar 31, 2026 | GALLAGHER J PATRICK JR | 7,715 |
| Mar 31, 2026 | HOWELL DOUGLAS K | 153 |
| Mar 31, 2026 | Bay Walter D. | 2,042 |
| Mar 31, 2026 | Hudson Scott R | 127 |
| Mar 31, 2026 | GALLAGHER THOMAS JOSEPH | 153 |
| Mar 31, 2026 | Ziebell William F | 102 |
| Mar 31, 2026 | Jain Vishal | 102 |
| Mar 23, 2026 | GALLAGHER THOMAS JOSEPH | 1,232 |
| Mar 23, 2026 | Gallagher Patrick Murphy | 1,408 |
| Mar 16, 2026 | Mead Christopher E | 432 |
| Mar 16, 2026 | Jain Vishal | 501 |
| Mar 16, 2026 | Gallagher Patrick Murphy | 525 |
| Mar 16, 2026 | Pesch Michael Robert | 525 |
| Mar 15, 2026 | Jain Vishal | 28K |
| Mar 15, 2026 | HOWELL DOUGLAS K | 54K |
| Mar 15, 2026 | CARY RICHARD C | 181 |
| Mar 15, 2026 | GALLAGHER J PATRICK JR | 154K |
| Mar 15, 2026 | Pietrucha Susan E | 22K |
| Mar 15, 2026 | Bay Walter D. | 24K |
| Mar 15, 2026 | Hudson Scott R | 24K |
| Mar 15, 2026 | GALLAGHER THOMAS JOSEPH | 33K |
| Mar 15, 2026 | Ziebell William F | 23K |
| Mar 15, 2026 | Mead Christopher E | 18K |
| Mar 15, 2026 | Bloom Mark H. | 11K |
| Mar 15, 2026 | Gallagher Patrick Murphy | 16K |
| Mar 6, 2026 | Hudson Scott R | 3,800 |
| Mar 5, 2026 | Mead Christopher E | 4,000 |
| Mar 5, 2026 | Pesch Michael Robert | 10K |
| Mar 3, 2026 | GALLAGHER J PATRICK JR | 46K |
| Mar 3, 2026 | Gallagher Patrick Murphy | 5,750 |
| Mar 1, 2026 | JOHNSON DAVID S | 214 |
| Mar 1, 2026 | Miskel Christopher C. | 175 |
| Feb 26, 2026 | GALLAGHER THOMAS JOSEPH | 46K |
| Jan 1, 2026 | Jain Vishal | 1,214 |
| Dec 23, 2025 | Mead Christopher E | 4,388 |
| Dec 22, 2025 | HOWELL DOUGLAS K | 196 |
| Dec 19, 2025 | Bay Walter D. | 18K |
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 |
|---|---|
| Granted | 121K |
| Vested / exercised | 273K |
| Bought on market | 4,000 |
| Withheld for tax | 85K |
| Discretionary sales | 113K |
| Gifts | 94K |
| Other out | 105K |
| Kept | 2,207 |
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 |
|---|---|---|---|
| GALLAGHER THOMAS JOSEPH | 293K | 324K | 110.3 |
| Gallagher Patrick Murphy | 29K | 14K | 48.1 |
| Hudson Scott R | 35K | 90K | 259.7 |
| HOWELL DOUGLAS K | 65K | 107K | 164.6 |
| GALLAGHER J PATRICK JR | 101K | 109K | 108.6 |
Who holds what
the 14 largest holdings of 24| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| GALLAGHER THOMAS JOSEPH President Last trade Aug 8, 2024 | Officer | 443K | – | – | Aug 8, 2024 | |
| Gallagher Patrick Murphy Chief Operating Officer Last trade Feb 27, 2025 | COO | 162K | – | – | Feb 27, 2025 | |
| Cavaness Joel D Vice President Last trade Mar 18, 2024 | Officer | 162K | – | – | Mar 18, 2024 | |
| Hudson Scott R Vice President Last trade Sep 2, 2026 | Officer | 125K | – | $4.0M | net selling over the year: 0 months buying, 2 months selling | Sep 2, 2026 |
| HOWELL DOUGLAS K VP & Chief Financial Officer Last trade Dec 22, 2025 | CFO | 110K | – | $5.5M | net selling over the year: 0 months buying, 2 months selling | Dec 22, 2025 |
| GALLAGHER J PATRICK JR CEO Last trade Mar 2, 2026 | CEO | 109K | – | $6.3M | net selling over the year: 0 months buying, 1 month selling | Mar 2, 2026 |
| Bay Walter D. General Counsel Last trade Aug 24, 2026 | Officer | 104K | – | $7.3M | net selling over the year: 0 months buying, 2 months selling | Aug 24, 2026 |
| CARY RICHARD C Controller, CAO Last trade Sep 15, 2026 | Officer | 89K | – | $2.4M | net selling over the year: 0 months buying, 3 months selling | Sep 15, 2026 |
| Jain Vishal VICE PRESIDENT | Officer | 69K | – | – | – | |
| Ziebell William F VICE PRESIDENT Last trade Feb 18, 2025 | Officer | 49K | – | – | Feb 18, 2025 | |
| JOHNSON DAVID S Last trade May 16, 2025 | Director | 47K | – | – | May 16, 2025 | |
| Pesch Michael Robert Vice President Last trade Nov 3, 2025 | Officer | 45K | $988K | – | net buying over the year: 1 month buying, 0 months selling | Nov 3, 2025 |
| ROSENTHAL NORMAN L Last trade Aug 5, 2016 | Director | 43K | – | – | Aug 5, 2016 | |
| Mead Christopher E VICE PRESIDENT Last trade Aug 19, 2026 | Officer | 26K | – | $3.2M | net selling over the year: 0 months buying, 4 months selling | Aug 19, 2026 |
Open-market trade log
the 60 most recent of 409| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | CARY RICHARD C (Officer) 1,000 shares $252.86 +4.5% since trade filed Sep 17, 2026 | Discretionary sale | 1,000 | $252.86 | $253K | +4.5% | Sep 17, 2026 |
| Sep 2, 2026 | Hudson Scott R (Officer) 12K shares $264.13 +0.0% since trade filed Sep 4, 2026 | Discretionary sale | 12K | $264.13 | $3.2M | +0.0% | Sep 4, 2026 |
| Aug 24, 2026 | Bay Walter D. (Officer) 12K shares $270.08 −2.2% since trade filed Aug 26, 2026 | Discretionary sale | 12K | $270.08 | $3.2M | −2.2% | Aug 26, 2026 |
| Aug 19, 2026 | Mead Christopher E (Officer) 3,500 shares $257.03 +2.8% since trade filed Aug 20, 2026 | Discretionary sale | 3,500 | $257.03 | $900K | +2.8% | Aug 20, 2026 |
| Jun 2, 2026 | CARY RICHARD C (Officer) 3,000 shares $206.00 +28.2% since trade filed Jun 2, 2026 | Discretionary sale | 3,000 | $206.00 | $618K | +28.2% | Jun 2, 2026 |
| Mar 6, 2026 | Hudson Scott R (Officer) 3,800 shares $227.57 +16.1% since trade filed Mar 9, 2026 | Discretionary sale | 3,800 | $227.57 | $865K | +16.1% | Mar 9, 2026 |
| Mar 5, 2026 | Mead Christopher E (Officer) 4,000 shares $227.12 +16.3% since trade filed Mar 9, 2026 | Discretionary sale | 4,000 | $227.12 | $908K | +16.3% | Mar 9, 2026 |
| Mar 2, 2026 | GALLAGHER J PATRICK JR (CEO) 27K shares $230.31 +14.7% since trade filed Mar 4, 2026 | Discretionary sale | 27K | $230.31 | $6.3M | +14.7% | Mar 4, 2026 |
| Dec 23, 2025 | Mead Christopher E (Officer) 4,000 shares $258.11 +2.3% since trade filed Dec 29, 2025 late | Discretionary sale | 4,000 | $258.11 | $1.0M | +2.3% | Dec 29, 2025 late |
| Dec 22, 2025 | HOWELL DOUGLAS K (CFO) 5,000 shares $258.05 +2.4% since trade filed Dec 29, 2025 late | Discretionary sale | 5,000 | $258.05 | $1.3M | +2.4% | Dec 29, 2025 late |
| Dec 19, 2025 | Bay Walter D. (Officer) 16K shares $255.00 +3.6% since trade filed Dec 23, 2025 | Discretionary sale | 16K | $255.00 | $4.0M | +3.6% | Dec 23, 2025 |
| Nov 21, 2025 | Mead Christopher E (Officer) 1,250 shares $250.74 +5.3% since trade filed Nov 25, 2025 | Discretionary sale | 1,250 | $250.74 | $313K | +5.3% | Nov 25, 2025 |
| Nov 18, 2025 | CARY RICHARD C (Officer) 6,000 shares $261.00 +1.2% since trade filed Nov 20, 2025 | Discretionary sale | 6,000 | $261.00 | $1.6M | +1.2% | Nov 20, 2025 |
| Nov 3, 2025 | Pesch Michael Robert (Officer) 538 shares $245.85 +7.4% since trade filed Nov 3, 2025 | Open-market buy | 538 | $245.85 | $132K | +7.4% | Nov 3, 2025 |
| Nov 3, 2025 | Pesch Michael Robert (Officer) 599 shares $248.72 +6.2% since trade filed Nov 3, 2025 | Open-market buy | 599 | $248.72 | $149K | +6.2% | Nov 3, 2025 |
| Nov 3, 2025 | Pesch Michael Robert (Officer) 989 shares $247.42 +6.8% since trade filed Nov 3, 2025 | Open-market buy | 989 | $247.42 | $245K | +6.8% | Nov 3, 2025 |
| Nov 3, 2025 | Pesch Michael Robert (Officer) 1,874 shares $246.82 +7.0% since trade filed Nov 3, 2025 | Open-market buy | 1,874 | $246.82 | $463K | +7.0% | Nov 3, 2025 |
| Sep 22, 2025 | HOWELL DOUGLAS K (CFO) 2,100 shares $299.84 −11.9% since trade filed Sep 23, 2025 | Discretionary sale | 2,100 | $299.84 | $630K | −11.9% | Sep 23, 2025 |
| Sep 22, 2025 | HOWELL DOUGLAS K (CFO) 5,900 shares $299.44 −11.8% since trade filed Sep 23, 2025 | Discretionary sale | 5,900 | $299.44 | $1.8M | −11.8% | Sep 23, 2025 |
| Sep 19, 2025 | HOWELL DOUGLAS K (CFO) 2,600 shares $298.69 −11.6% since trade filed Sep 23, 2025 | Discretionary sale | 2,600 | $298.69 | $777K | −11.6% | Sep 23, 2025 |
| Sep 19, 2025 | HOWELL DOUGLAS K (CFO) 3,400 shares $299.71 −11.9% since trade filed Sep 23, 2025 | Discretionary sale | 3,400 | $299.71 | $1.0M | −11.9% | Sep 23, 2025 |
| Sep 9, 2025 | HOWELL DOUGLAS K (CFO) 3,000 shares $299.78 −11.9% since trade filed Sep 11, 2025 | Discretionary sale | 3,000 | $299.78 | $899K | −11.9% | Sep 11, 2025 |
| Sep 8, 2025 | Hudson Scott R (Officer) 5,255 shares $297.73 −11.3% since trade filed Sep 9, 2025 | Discretionary sale | 5,255 | $297.73 | $1.6M | −11.3% | Sep 9, 2025 |
| Sep 8, 2025 | Hudson Scott R (Officer) 7,600 shares $297.51 −11.2% since trade filed Sep 9, 2025 | Discretionary sale | 7,600 | $297.51 | $2.3M | −11.2% | Sep 9, 2025 |
| Aug 21, 2025 | CARY RICHARD C (Officer) 4,000 shares $306.00 −13.7% since trade filed Aug 22, 2025 | Discretionary sale | 4,000 | $306.00 | $1.2M | −13.7% | Aug 22, 2025 |
| Jun 18, 2025 | Pesch Michael Robert (Officer) 59 shares $318.37 −17.0% since trade filed Jun 20, 2025 | Open-market buy | 59 | $318.37 | $19K | −17.0% | Jun 20, 2025 |
| May 21, 2025 | Hudson Scott R (Officer) 11K shares $337.17 −21.7% since trade filed May 22, 2025 | Discretionary sale | 11K | $337.17 | $3.5M | −21.7% | May 22, 2025 |
| May 19, 2025 | Pietrucha Susan E (Officer) 14K shares $344.13 −23.3% since trade filed May 20, 2025 | Discretionary sale | 14K | $344.13 | $4.6M | −23.3% | May 20, 2025 |
| May 16, 2025 | JOHNSON DAVID S (Director) 1,000 shares $342.04 −22.8% since trade filed May 20, 2025 | Discretionary sale | 1,000 | $342.04 | $342K | −22.8% | May 20, 2025 |
| May 7, 2025 | CARY RICHARD C (Officer) 12K shares $339.51 −22.2% since trade filed May 9, 2025 | Discretionary sale | 12K | $339.51 | $4.1M | −22.2% | May 9, 2025 |
| Mar 21, 2025 | Hudson Scott R (Officer) 7,510 shares $333.59 −20.8% since trade filed Mar 21, 2025 | Discretionary sale | 7,510 | $333.59 | $2.5M | −20.8% | Mar 21, 2025 |
| Feb 27, 2025 | Gallagher Patrick Murphy (COO) 2,613 shares $332.52 −20.6% since trade filed Feb 28, 2025 | Discretionary sale | 2,613 | $332.52 | $869K | −20.6% | Feb 28, 2025 |
| Feb 18, 2025 | Ziebell William F (Officer) 7,049 shares $324.41 −18.6% since trade filed Feb 19, 2025 | Discretionary sale | 7,049 | $324.41 | $2.3M | −18.6% | Feb 19, 2025 |
| Feb 13, 2025 | Bay Walter D. (Officer) 10K shares $326.62 −19.1% since trade filed Feb 14, 2025 | Discretionary sale | 10K | $326.62 | $3.3M | −19.1% | Feb 14, 2025 |
| Feb 12, 2025 | JOHNSON DAVID S (Director) 325 shares $322.06 −18.0% since trade filed Feb 12, 2025 | Discretionary sale | 325 | $322.06 | $105K | −18.0% | Feb 12, 2025 |
| Feb 10, 2025 | CARY RICHARD C (Officer) 500 shares $324.63 −18.6% since trade filed Feb 12, 2025 | Discretionary sale | 500 | $324.63 | $162K | −18.6% | Feb 12, 2025 |
| Feb 10, 2025 | CARY RICHARD C (Officer) 1,400 shares $321.03 −17.7% since trade filed Feb 12, 2025 | Discretionary sale | 1,400 | $321.03 | $449K | −17.7% | Feb 12, 2025 |
| Feb 10, 2025 | CARY RICHARD C (Officer) 1,907 shares $322.95 −18.2% since trade filed Feb 12, 2025 | Discretionary sale | 1,907 | $322.95 | $616K | −18.2% | Feb 12, 2025 |
| Feb 10, 2025 | CARY RICHARD C (Officer) 2,270 shares $321.91 −18.0% since trade filed Feb 12, 2025 | Discretionary sale | 2,270 | $321.91 | $731K | −18.0% | Feb 12, 2025 |
| Feb 10, 2025 | CARY RICHARD C (Officer) 3,923 shares $324.12 −18.5% since trade filed Feb 12, 2025 | Discretionary sale | 3,923 | $324.12 | $1.3M | −18.5% | Feb 12, 2025 |
| Feb 3, 2025 | BARRAT SHERRY S (Director) 2,500 shares $304.33 −13.2% since trade filed Feb 5, 2025 | Discretionary sale | 2,500 | $304.33 | $761K | −13.2% | Feb 5, 2025 |
| Feb 3, 2025 | Hudson Scott R (Officer) 23K shares $306.59 −13.9% since trade filed Feb 5, 2025 | Discretionary sale | 23K | $306.59 | $7.1M | −13.9% | Feb 5, 2025 |
| Feb 3, 2025 | Mead Christopher E (Officer) 2,900 shares $302.61 −12.7% since trade filed Feb 5, 2025 | Discretionary sale | 2,900 | $302.61 | $878K | −12.7% | Feb 5, 2025 |
| Dec 23, 2024 | Gallagher Patrick Murphy (COO) 1,115 shares $284.14 −7.0% since trade filed Dec 23, 2024 | Open-market buy | 1,115 | $284.14 | $317K | −7.0% | Dec 23, 2024 |
| Nov 8, 2024 | BARRAT SHERRY S (Director) 878 shares $294.65 −10.4% since trade filed Nov 12, 2024 | Discretionary sale | 878 | $294.65 | $259K | −10.4% | Nov 12, 2024 |
| Oct 28, 2024 | HOWELL DOUGLAS K (CFO) 7,000 shares $284.70 −7.2% since trade filed Oct 30, 2024 | Discretionary sale | 7,000 | $284.70 | $2.0M | −7.2% | Oct 30, 2024 |
| Oct 28, 2024 | Mead Christopher E (Officer) 2,800 shares $287.00 −8.0% since trade filed Oct 30, 2024 | Discretionary sale | 2,800 | $287.00 | $804K | −8.0% | Oct 30, 2024 |
| Sep 19, 2024 | HOWELL DOUGLAS K (CFO) 7,000 shares $284.68 −7.2% since trade filed Sep 20, 2024 | Discretionary sale | 7,000 | $284.68 | $2.0M | −7.2% | Sep 20, 2024 |
| Sep 13, 2024 | Pesch Michael Robert (Officer) 7,100 shares $296.20 −10.8% since trade filed Sep 13, 2024 | Discretionary sale | 7,100 | $296.20 | $2.1M | −10.8% | Sep 13, 2024 |
| Aug 8, 2024 | GALLAGHER THOMAS JOSEPH (Officer) 15K shares $282.96 −6.7% since trade filed Aug 9, 2024 | Discretionary sale | 15K | $282.96 | $4.2M | −6.7% | Aug 9, 2024 |
| Aug 1, 2024 | HOWELL DOUGLAS K (CFO) 8,710 shares $285.07 −7.4% since trade filed Aug 2, 2024 | Discretionary sale | 8,710 | $285.07 | $2.5M | −7.4% | Aug 2, 2024 |
| Jul 30, 2024 | Bay Walter D. (Officer) 6,335 shares $284.06 −7.0% since trade filed Jul 30, 2024 | Discretionary sale | 6,335 | $284.06 | $1.8M | −7.0% | Jul 30, 2024 |
| Jun 18, 2024 | Bay Walter D. (Officer) 8,303 shares $262.74 +0.5% since trade filed Jun 18, 2024 | Discretionary sale | 8,303 | $262.74 | $2.2M | +0.5% | Jun 18, 2024 |
| Jun 18, 2024 | Hudson Scott R (Officer) 10K shares $263.45 +0.3% since trade filed Jun 18, 2024 | Discretionary sale | 10K | $263.45 | $2.6M | +0.3% | Jun 18, 2024 |
| May 22, 2024 | JOHNSON DAVID S (Director) 850 shares $257.84 +2.4% since trade filed May 24, 2024 | Discretionary sale | 850 | $257.84 | $219K | +2.4% | May 24, 2024 |
| May 20, 2024 | Bay Walter D. (Officer) 800 shares $257.24 +2.7% since trade filed May 20, 2024 | Discretionary sale | 800 | $257.24 | $206K | +2.7% | May 20, 2024 |
| May 17, 2024 | HOWELL DOUGLAS K (CFO) 5,100 shares $257.04 +2.8% since trade filed May 21, 2024 | Discretionary sale | 5,100 | $257.04 | $1.3M | +2.8% | May 21, 2024 |
| May 17, 2024 | Bay Walter D. (Officer) 386 shares $258.11 +2.3% since trade filed May 20, 2024 | Discretionary sale | 386 | $258.11 | $100K | +2.3% | May 20, 2024 |
| May 17, 2024 | Bay Walter D. (Officer) 3,863 shares $256.27 +3.1% since trade filed May 20, 2024 | Discretionary sale | 3,863 | $256.27 | $990K | +3.1% | May 20, 2024 |
| May 17, 2024 | Bay Walter D. (Officer) 4,468 shares $257.53 +2.6% since trade filed May 20, 2024 | Discretionary sale | 4,468 | $257.53 | $1.2M | +2.6% | May 20, 2024 |
“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
304 Forms 4, 3 years
4 filed late
2 amendments
2.5 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.