IDEX insider activity
What the executives and directors of IDEX actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$3.3M
net open-market flow, 12 m
1 open-market buy, 12 m
0%
of sale value on 10b5-1 plans, 12 m
320 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 60 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Sep 16, 2026 | Simmons William L. | 218 |
| Sep 16, 2026 | Tereso Tara M. | 290 |
| Sep 11, 2026 | Tereso Tara M. | 138 |
| Aug 29, 2026 | Lausas Allison S | 645 |
| Aug 12, 2026 | Anderson Lisa M | 385 |
| May 11, 2026 | ASHLEMAN ERIC D | 15K |
| May 6, 2026 | BUTHMAN MARK A | 805 |
| May 6, 2026 | Helmkamp Katrina L | 1,035 |
| May 6, 2026 | Christenson Carl R | 805 |
| May 6, 2026 | Glastra Matthijs | 805 |
| May 6, 2026 | Beck Mark A | 805 |
| May 6, 2026 | Gunter Lakecia N | 805 |
| May 6, 2026 | Watts Stanfield Paris | 805 |
| May 6, 2026 | Quiroz Alejandro | 805 |
| May 6, 2026 | Disher Stephanie | 805 |
| Feb 23, 2026 | Tereso Tara M. | 154 |
| Feb 22, 2026 | ASHLEMAN ERIC D | 9,040 |
| Feb 20, 2026 | Lausas Allison S | 454 |
| Feb 19, 2026 | Gillen Sean M. | 2,410 |
| Feb 19, 2026 | Anderson Lisa M | 1,205 |
| Feb 19, 2026 | Simmons William L. | 1,055 |
| Feb 19, 2026 | Tereso Tara M. | 1,055 |
| Jan 5, 2026 | Gillen Sean M. | 17K |
| May 30, 2025 | Mahendra Akhil | 2,765 |
| May 8, 2025 | BUTHMAN MARK A | 895 |
| May 8, 2025 | Helmkamp Katrina L | 1,165 |
| May 8, 2025 | Christenson Carl R | 895 |
| May 8, 2025 | Glastra Matthijs | 895 |
| May 8, 2025 | Beck Mark A | 895 |
| May 8, 2025 | Gunter Lakecia N | 895 |
| May 8, 2025 | Watts Stanfield Paris | 895 |
| May 8, 2025 | Quiroz Alejandro | 895 |
| May 8, 2025 | Disher Stephanie | 895 |
| Feb 21, 2025 | Glastra Matthijs | 180 |
| Feb 21, 2025 | Disher Stephanie | 180 |
| Feb 20, 2025 | ASHLEMAN ERIC D | 7,760 |
| Feb 20, 2025 | Lausas Allison S | 775 |
| Feb 20, 2025 | Khandelwal Abhishek | 1,725 |
| Feb 20, 2025 | Flores Melissa S | 865 |
| Feb 20, 2025 | Anderson Lisa M | 1,025 |
| Feb 20, 2025 | Unnikrishnan Roopa | 830 |
| Feb 11, 2025 | ASHLEMAN ERIC D | 10K |
| Feb 11, 2025 | Lausas Allison S | 517 |
| Feb 11, 2025 | Flores Melissa S | 1,154 |
| Feb 11, 2025 | Anderson Lisa M | 1,275 |
| Feb 11, 2025 | Unnikrishnan Roopa | 1,026 |
| Aug 25, 2024 | Lausas Allison S | 292 |
| May 7, 2024 | BUTHMAN MARK A | 745 |
| May 7, 2024 | Helmkamp Katrina L | 970 |
| May 7, 2024 | Parry David C | 745 |
| May 7, 2024 | Christenson Carl R | 745 |
| May 7, 2024 | SATTERTHWAITE LIVINGSTON | 745 |
| May 7, 2024 | Beck Mark A | 745 |
| May 7, 2024 | Gunter Lakecia N | 745 |
| May 7, 2024 | Watts Stanfield Paris | 745 |
| May 7, 2024 | Quiroz Alejandro | 745 |
| Feb 13, 2024 | ASHLEMAN ERIC D | 6,785 |
| Feb 13, 2024 | Flores Melissa S | 618 |
| Feb 13, 2024 | Anderson Lisa M | 307 |
| Nov 20, 2023 | Khandelwal Abhishek | 5,110 |
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 | 39K |
| Vested / exercised | 16K |
| Bought on market | 600 |
| Withheld for tax | 1,624 |
| Discretionary sales | 16K |
| Kept | 38K |
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 |
|---|---|---|---|
| ASHLEMAN ERIC D | 38K | 67K | 173.2 |
| Gillen Sean M. | 17K | 19K | 114.5 |
| Helmkamp Katrina L | 7,540 | 14K | 188.8 |
| BUTHMAN MARK A | 6,810 | 10K | 147.2 |
| Beck Mark A | 4,540 | 7,755 | 170.8 |
Who holds what
the 14 largest holdings of 21| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| ASHLEMAN ERIC D CEO and President Last trade May 11, 2026 | CEO | 82K | – | $3.3M | net selling over the year: 0 months buying, 1 month selling | May 11, 2026 |
| Parry David C | Director | 22K | – | – | – | |
| Gillen Sean M. SVP, Chief Financial Officer | CFO | 19K | – | – | – | |
| SATTERTHWAITE LIVINGSTON Last trade Nov 2, 2022 | Director | 15K | – | – | Nov 2, 2022 | |
| Helmkamp Katrina L Last trade Aug 7, 2025 | Director | 14K | – | – | Aug 7, 2025 | |
| BUTHMAN MARK A | Director | 10K | – | – | – | |
| Beck Mark A | Director | 7,755 | – | – | – | |
| Christenson Carl R Last trade Nov 5, 2025 | Director | 7,156 | $102K | – | net buying over the year: 1 month buying, 0 months selling | Nov 5, 2025 |
| Khandelwal Abhishek SVP, Chief Financial Officer | CFO | 6,935 | – | – | – | |
| Tereso Tara M. Group Executive, HST | Officer | 5,408 | – | – | – | |
| Mahendra Akhil Interim CFO Last trade Jun 5, 2025 | CFO | 5,035 | – | – | Jun 5, 2025 | |
| Gunter Lakecia N | Director | 4,925 | – | – | – | |
| Anderson Lisa M SVP, GC, CAO & Corp Sec Last trade Aug 12, 2026 | Officer | 4,712 | – | $92K | net selling over the year: 0 months buying, 1 month selling | Aug 12, 2026 |
| Watts Stanfield Paris | Director | 4,195 | – | – | – |
Open-market trade log
the 60 most recent of 355| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | Anderson Lisa M (Officer) 385 shares $238.59 +0.0% since trade filed Aug 13, 2026 | Discretionary sale | 385 | $238.59 | $92K | +0.0% | Aug 13, 2026 |
| May 11, 2026 | ASHLEMAN ERIC D (CEO) 4,915 shares $215.81 +10.6% since trade filed May 13, 2026 | Discretionary sale | 4,915 | $215.81 | $1.1M | +10.6% | May 13, 2026 |
| May 11, 2026 | ASHLEMAN ERIC D (CEO) 10K shares $214.95 +11.0% since trade filed May 13, 2026 | Discretionary sale | 10K | $214.95 | $2.3M | +11.0% | May 13, 2026 |
| Nov 5, 2025 | Christenson Carl R (Director) 600 shares $169.41 +40.8% since trade filed Nov 7, 2025 | Open-market buy | 600 | $169.41 | $102K | +40.8% | Nov 7, 2025 |
| Aug 7, 2025 | Helmkamp Katrina L (Director) 2,500 shares $159.61 +49.5% since trade filed Aug 11, 2025 | Open-market buy | 2,500 | $159.61 | $399K | +49.5% | Aug 11, 2025 |
| Jun 5, 2025 | Mahendra Akhil (CFO) 250 shares $180.89 +31.9% since trade filed Jun 9, 2025 | Discretionary sale | 250 | $180.89 | $45K | +31.9% | Jun 9, 2025 |
| Feb 9, 2023 | Grogan William K (CFO) 3,181 shares $226.36 +5.4% since trade filed Feb 13, 2023 | Discretionary sale | 3,181 | $226.36 | $720K | +5.4% | Feb 13, 2023 |
| Nov 2, 2022 | SATTERTHWAITE LIVINGSTON (Director) 3,075 shares $222.69 +7.1% since trade filed Nov 2, 2022 | Discretionary sale | 3,075 | $222.69 | $685K | +7.1% | Nov 2, 2022 |
| Oct 28, 2022 | ASHLEMAN ERIC D (CEO) 3,062 shares $219.66 +8.6% since trade filed Nov 1, 2022 | Discretionary sale | 3,062 | $219.66 | $673K | +8.6% | Nov 1, 2022 |
| Oct 28, 2022 | ASHLEMAN ERIC D (CEO) 3,360 shares $218.10 +9.4% since trade filed Nov 1, 2022 | Discretionary sale | 3,360 | $218.10 | $733K | +9.4% | Nov 1, 2022 |
| Oct 28, 2022 | ASHLEMAN ERIC D (CEO) 5,848 shares $74.74 +219.2% since trade filed Oct 31, 2022 | Discretionary sale | 5,848 | $74.74 | $437K | +219.2% | Oct 31, 2022 |
| Oct 28, 2022 | ASHLEMAN ERIC D (CEO) 9,426 shares $219.07 +8.9% since trade filed Nov 1, 2022 | Discretionary sale | 9,426 | $219.07 | $2.1M | +8.9% | Nov 1, 2022 |
| Oct 28, 2022 | ASHLEMAN ERIC D (CEO) 10K shares $93.27 +155.8% since trade filed Oct 31, 2022 | Discretionary sale | 10K | $93.27 | $933K | +155.8% | Oct 31, 2022 |
| Oct 28, 2022 | Grogan William K (CFO) 843 shares $50.45 +372.9% since trade filed Oct 31, 2022 | Discretionary sale | 843 | $50.45 | $43K | +372.9% | Oct 31, 2022 |
| Oct 28, 2022 | Grogan William K (CFO) 843 shares $221.74 +7.6% since trade filed Nov 1, 2022 | Discretionary sale | 843 | $221.74 | $187K | +7.6% | Nov 1, 2022 |
| Nov 9, 2021 | SALLIOTTE DANIEL J (Director) 1,039 shares $235.90 +1.1% since trade filed Nov 12, 2021 | Discretionary sale | 1,039 | $235.90 | $245K | +1.1% | Nov 12, 2021 |
| Nov 9, 2021 | SALLIOTTE DANIEL J (Director) 1,174 shares $235.90 +1.1% since trade filed Nov 12, 2021 | Discretionary sale | 1,174 | $235.90 | $277K | +1.1% | Nov 12, 2021 |
| Nov 9, 2021 | SALLIOTTE DANIEL J (Director) 1,275 shares $235.90 +1.1% since trade filed Nov 12, 2021 | Discretionary sale | 1,275 | $235.90 | $301K | +1.1% | Nov 12, 2021 |
| Nov 9, 2021 | SALLIOTTE DANIEL J (Director) 1,684 shares $235.90 +1.1% since trade filed Nov 12, 2021 | Discretionary sale | 1,684 | $235.90 | $397K | +1.1% | Nov 12, 2021 |
| Nov 9, 2021 | SALLIOTTE DANIEL J (Director) 9,591 shares $235.90 +1.1% since trade filed Nov 12, 2021 | Discretionary sale | 9,591 | $235.90 | $2.3M | +1.1% | Nov 12, 2021 |
| Nov 9, 2021 | SATTERTHWAITE LIVINGSTON (Director) 3,530 shares $235.54 +1.3% since trade filed Nov 12, 2021 | Discretionary sale | 3,530 | $235.54 | $831K | +1.3% | Nov 12, 2021 |
| Nov 1, 2021 | COOK WILLIAM M (Director) 679 shares $223.03 +7.0% since trade filed Nov 2, 2021 | Discretionary sale | 679 | $223.03 | $151K | +7.0% | Nov 2, 2021 |
| May 25, 2021 | Cade Denise R (Officer) 2,823 shares $221.09 filed May 26, 2021 | Discretionary sale | 2,823 | $221.09 | $624K | – | May 26, 2021 |
| May 25, 2021 | Cade Denise R (Officer) 6,435 shares $221.09 filed May 26, 2021 | Discretionary sale | 6,435 | $221.09 | $1.4M | – | May 26, 2021 |
| May 25, 2021 | Cade Denise R (Officer) 8,375 shares $221.09 filed May 26, 2021 | Discretionary sale | 8,375 | $221.09 | $1.9M | – | May 26, 2021 |
| May 10, 2021 | Cade Denise R (Officer) 471 shares $228.00 filed May 12, 2021 | Discretionary sale | 471 | $228.00 | $107K | – | May 12, 2021 |
| May 10, 2021 | Cade Denise R (Officer) 3,161 shares $228.00 filed May 12, 2021 | Discretionary sale | 3,161 | $228.00 | $721K | – | May 12, 2021 |
| May 10, 2021 | Cade Denise R (Officer) 7,203 shares $228.00 filed May 12, 2021 | Discretionary sale | 7,203 | $228.00 | $1.6M | – | May 12, 2021 |
| May 5, 2021 | Cade Denise R (Officer) 73 shares $228.00 filed May 7, 2021 | Discretionary sale | 73 | $228.00 | $17K | – | May 7, 2021 |
| May 5, 2021 | Cade Denise R (Officer) 2,092 shares $228.00 filed May 7, 2021 | Discretionary sale | 2,092 | $228.00 | $477K | – | May 7, 2021 |
| Feb 22, 2021 | SATTERTHWAITE LIVINGSTON (Director) 4,800 shares $197.26 filed Feb 24, 2021 | Discretionary sale | 4,800 | $197.26 | $947K | – | Feb 24, 2021 |
| Feb 16, 2021 | Cade Denise R (Officer) 3,550 shares $200.12 filed Feb 16, 2021 | Discretionary sale | 3,550 | $200.12 | $710K | – | Feb 16, 2021 |
| Feb 12, 2021 | Cade Denise R (Officer) 200 shares $200.00 filed Feb 16, 2021 | Discretionary sale | 200 | $200.00 | $40K | – | Feb 16, 2021 |
| Feb 10, 2021 | Grogan William K (CFO) 4,000 shares $199.69 filed Feb 12, 2021 | Discretionary sale | 4,000 | $199.69 | $799K | – | Feb 12, 2021 |
| Nov 25, 2020 | MROZEK ERNEST J (Director) 3,530 shares $190.77 filed Nov 30, 2020 | Discretionary sale | 3,530 | $190.77 | $673K | – | Nov 30, 2020 |
| Nov 9, 2020 | Silvernail Andrew K (CEO) 152K shares $189.66 filed Nov 10, 2020 | Discretionary sale | 152K | $189.66 | $29M | – | Nov 10, 2020 |
| Oct 29, 2020 | Silvernail Andrew K (CEO) 19K shares $169.81 filed Nov 2, 2020 | Discretionary sale | 19K | $169.81 | $3.3M | – | Nov 2, 2020 |
| Oct 29, 2020 | Silvernail Andrew K (CEO) 35K shares $169.81 filed Nov 2, 2020 | Discretionary sale | 35K | $169.81 | $5.9M | – | Nov 2, 2020 |
| Oct 29, 2020 | Silvernail Andrew K (CEO) 68K shares $169.81 filed Nov 2, 2020 | Discretionary sale | 68K | $169.81 | $12M | – | Nov 2, 2020 |
| Aug 28, 2020 | YATES MICHAEL J (Officer) 4,565 shares $180.17 filed Sep 1, 2020 | Discretionary sale | 4,565 | $180.17 | $822K | – | Sep 1, 2020 |
| Aug 28, 2020 | YATES MICHAEL J (Officer) 4,635 shares $180.17 filed Sep 1, 2020 | Discretionary sale | 4,635 | $180.17 | $835K | – | Sep 1, 2020 |
| Aug 28, 2020 | YATES MICHAEL J (Officer) 6,197 shares $180.17 filed Sep 1, 2020 | Discretionary sale | 6,197 | $180.17 | $1.1M | – | Sep 1, 2020 |
| Aug 25, 2020 | BUCKLEW JEFFREY D (Officer) 1,936 shares $180.90 filed Aug 26, 2020 | Discretionary sale | 1,936 | $180.90 | $350K | – | Aug 26, 2020 |
| Aug 24, 2020 | BUCKLEW JEFFREY D (Officer) 64 shares $180.07 filed Aug 26, 2020 | Discretionary sale | 64 | $180.07 | $12K | – | Aug 26, 2020 |
| Aug 24, 2020 | BUCKLEW JEFFREY D (Officer) 740 shares $180.07 filed Aug 26, 2020 | Discretionary sale | 740 | $180.07 | $133K | – | Aug 26, 2020 |
| Aug 21, 2020 | BUCKLEW JEFFREY D (Officer) 5,000 shares $178.50 filed Aug 24, 2020 | Discretionary sale | 5,000 | $178.50 | $893K | – | Aug 24, 2020 |
| Aug 14, 2020 | ASHLEMAN ERIC D (COO) 8,101 shares $176.11 filed Aug 18, 2020 | Discretionary sale | 8,101 | $176.11 | $1.4M | – | Aug 18, 2020 |
| Aug 12, 2020 | BUCKLEW JEFFREY D (Officer) 5,000 shares $176.50 filed Aug 12, 2020 | Discretionary sale | 5,000 | $176.50 | $883K | – | Aug 12, 2020 |
| Aug 11, 2020 | SALLIOTTE DANIEL J (Officer) 1,173 shares $174.95 filed Aug 13, 2020 | Discretionary sale | 1,173 | $174.95 | $205K | – | Aug 13, 2020 |
| Aug 11, 2020 | SALLIOTTE DANIEL J (Officer) 1,684 shares $174.95 filed Aug 13, 2020 | Discretionary sale | 1,684 | $174.95 | $295K | – | Aug 13, 2020 |
| Aug 11, 2020 | SALLIOTTE DANIEL J (Officer) 2,077 shares $174.95 filed Aug 13, 2020 | Discretionary sale | 2,077 | $174.95 | $363K | – | Aug 13, 2020 |
| Aug 11, 2020 | SALLIOTTE DANIEL J (Officer) 2,718 shares $174.95 filed Aug 13, 2020 | Discretionary sale | 2,718 | $174.95 | $476K | – | Aug 13, 2020 |
| Aug 11, 2020 | Cade Denise R (Officer) 2,650 shares $173.26 filed Aug 12, 2020 | Discretionary sale | 2,650 | $173.26 | $459K | – | Aug 12, 2020 |
| Aug 11, 2020 | BUCKLEW JEFFREY D (Officer) 2,500 shares $175.17 filed Aug 12, 2020 | Discretionary sale | 2,500 | $175.17 | $438K | – | Aug 12, 2020 |
| Aug 11, 2020 | BUCKLEW JEFFREY D (Officer) 2,934 shares $172.96 filed Aug 12, 2020 | Discretionary sale | 2,934 | $172.96 | $507K | – | Aug 12, 2020 |
| Aug 10, 2020 | BUCKLEW JEFFREY D (Officer) 1,000 shares $170.00 filed Aug 12, 2020 | Discretionary sale | 1,000 | $170.00 | $170K | – | Aug 12, 2020 |
| Jul 27, 2020 | MROZEK ERNEST J (Director) 3,190 shares $169.80 filed Jul 29, 2020 | Discretionary sale | 3,190 | $169.80 | $542K | – | Jul 29, 2020 |
| Jul 27, 2020 | Silvernail Andrew K (CEO) 100K shares $168.77 filed Jul 29, 2020 | Discretionary sale | 100K | $168.77 | $17M | – | Jul 29, 2020 |
| May 28, 2020 | COOK WILLIAM M (Director) 3,190 shares $160.68 filed May 28, 2020 | Discretionary sale | 3,190 | $160.68 | $513K | – | May 28, 2020 |
| May 28, 2020 | Silvernail Andrew K (CEO) 36K shares $159.38 filed Jun 1, 2020 | Discretionary sale | 36K | $159.38 | $5.7M | – | Jun 1, 2020 |
“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
75 Forms 4, 3 years
1 filed late
0 amendments
4.9 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.