Terrence A. Duffy

Insider · Chairman and CEO · CME

Terrence A. Duffy files insider transactions with the SEC as a chairman and ceo of Cme Group. We hold 2 disclosed purchases and sales filed since 22 February 2006, 1 of them in the last 90 days.

Files forCME
Disclosed buys and sells2 in all, 1 in the last 90 days
Last disclosure11 September 2026

Positions held

1 post we hold — a term names its own dates; a run of filings only says when they filed

Filed 21 February 2006 — 10 September 2026Chairman and CEO · Cme Group 213 Form 4 lines · source: SEC Form 4

Every transaction

213 transactions from SEC Form 4 — one row each, sort any column, open a row for the filing

Sort byOpen-market trades only213 of 213 shown


10 Sep 2026	11 Sep 2026SEC Form 4	1 d	sold on the open market	Cme Group	14,372 shares	up +0.5%	up +0.0%
10 Sep 2026	11 Sep 2026SEC Form 4	1 d	sold on the open market	Cme Group	628 shares	up +0.5%	up +0.0%
15 May 2026	18 May 2026SEC Form 4	3 d	sold on the open market	Cme Group	25,996 shares	down −7.8%	down −9.7%
15 May 2026	18 May 2026SEC Form 4	3 d	sold on the open market	Cme Group	9,004 shares	down −7.8%	down −9.7%
15 Mar 2026	17 Mar 2026SEC Form 4	2 d	was grantednot a trade	Cme Group	62,902 shares	down −11.5%	down −12.1%
15 Mar 2026	17 Mar 2026SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	27,866 shares	down −11.5%	down −12.1%
15 Mar 2026	17 Mar 2026SEC Form 4	2 d	was grantednot a trade	Cme Group	62,902 shares	down −11.5%	down −12.1%
15 Mar 2026	17 Mar 2026SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	27,866 shares	down −11.5%	down −12.1%
31 Dec 2025	2 Jan 2026SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	10,210 shares	up +0.9%	up +2.2%
31 Dec 2025	2 Jan 2026SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	10,210 shares	up +0.9%	up +2.2%
11 Dec 2025	15 Dec 2025SEC Form 4	4 d	sold on the open market	Cme Group	13,089 shares	up +1.1%	up +1.2%
11 Dec 2025	15 Dec 2025SEC Form 4	4 d	sold on the open market	Cme Group	11,911 shares	up +1.1%	up +1.2%
15 Sep 2025	17 Sep 2025SEC Form 4	2 d	was grantednot a trade	Cme Group	23,180 shares	up +6.5%	up +5.0%
15 Mar 2025	18 Mar 2025SEC Form 4	3 d	was grantednot a trade	Cme Group	25,887 shares	up +6.5%	up +3.4%
15 Mar 2025	18 Mar 2025SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	11,468 shares	up +6.5%	up +3.4%
11 Mar 2025	11 Mar 2025SEC Form 4	0 d	sold on the open market	Cme Group	30,000 shares	up +5.8%	up +5.8%
31 Dec 2024	2 Jan 2025SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	11,706 shares	up +18.6%	up +18.4%
16 Sep 2024	17 Sep 2024SEC Form 4	1 d	was grantednot a trade	Cme Group	27,456 shares	up +26.1%	up +26.3%
29 Apr 2024	1 May 2024SEC Form 4	2 d	sold on the open market	Cme Group	4,076 shares	up +31.4%	up +32.4%
29 Apr 2024	1 May 2024SEC Form 4	2 d	sold on the open market	Cme Group	10,708 shares	up +31.4%	up +32.4%
29 Apr 2024	1 May 2024SEC Form 4	2 d	sold on the open market	Cme Group	25,216 shares	up +31.4%	up +32.4%
15 Mar 2024	19 Mar 2024SEC Form 4	4 d	was grantednot a trade	Cme Group	45,359 shares	up +26.7%	up +27.4%
15 Mar 2024	19 Mar 2024SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	20,095 shares	up +26.7%	up +27.4%
31 Dec 2023	2 Jan 2024SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	12,366 shares	up +30.8%	up +31.7%
15 Sep 2023	18 Sep 2023SEC Form 4	3 d	was grantednot a trade	Cme Group	29,012 shares	up +33.2%	up +33.4%
18 Aug 2023	21 Aug 2023SEC Form 4	3 d	sold on the open market	Cme Group	30,000 shares	up +35.2%	up +36.0%
31 Dec 2022	3 Jan 2023SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	7,167 shares	up +63.9%	up +63.1%
31 Dec 2022	3 Jan 2023SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	13,364 shares	up +63.9%	up +63.1%
15 Sep 2022	19 Sep 2022SEC Form 4	4 d	was grantednot a trade	Cme Group	31,452 shares	up +44.4%	up +44.5%
15 Sep 2022	19 Sep 2022SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	2,514 shares	up +44.4%	up +44.5%
15 Mar 2022	17 Mar 2022SEC Form 4	2 d	was grantednot a trade	Cme Group	10,468 shares	up +18.8%	up +11.9%
15 Mar 2022	17 Mar 2022SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	4,638 shares	up +18.8%	up +11.9%
5 Nov 2021	8 Nov 2021SEC Form 4	3 d	bought on the open market	Cme Group	400 shares	up +24.3%	up +24.9%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	300 shares	up +24.9%	up +24.3%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	100 shares	up +24.9%	up +24.3%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	300 shares	up +24.9%	up +24.3%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	200 shares	up +24.9%	up +24.3%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	100 shares	up +24.9%	up +24.3%
4 Nov 2021	5 Nov 2021SEC Form 4	1 d	bought on the open market	Cme Group	600 shares	up +24.9%	up +24.3%
15 Sep 2021	16 Sep 2021SEC Form 4	1 d	was grantednot a trade	Cme Group	23,816 shares	up +45.8%	up +46.0%
19 May 2021	21 May 2021SEC Form 4	2 d	sold on the open market	Cme Group	29,000 shares	up +30.1%	up +26.5%
15 Mar 2021	17 Mar 2021SEC Form 4	2 d	was grantednot a trade	Cme Group	32,896 shares	up +31.8%	up +33.4%
15 Mar 2021	17 Mar 2021SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	14,574 shares	up +31.8%	up +33.4%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	568 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	1,907 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	20 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	3,038 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	1,359 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	3,948 shares	up +51.4%	up +53.7%
31 Dec 2020	4 Jan 2021SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	11,584 shares	up +51.4%	up +53.7%
16 Sep 2020	17 Sep 2020SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	1,345 shares	up +61.9%	up +61.4%
15 Sep 2020	17 Sep 2020SEC Form 4	2 d	was grantednot a trade	Cme Group	26,768 shares	up +63.9%	up +61.4%
15 Sep 2020	16 Sep 2020SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	1,937 shares	up +63.9%	up +61.9%
15 Sep 2020	16 Sep 2020SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	1,895 shares	up +63.9%	up +61.9%
14 Sep 2020	16 Sep 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,546 shares	up +65.9%	up +61.9%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	was grantednot a trade	Cme Group	20,590 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	9,122 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	was grantednot a trade	Cme Group	20,590 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	9,122 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	591 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	10 shares	up +51.4%	up +66.0%
15 Mar 2020	17 Mar 2020SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	470 shares	up +51.4%	up +66.0%
12 Dec 2019	13 Dec 2019SEC Form 4	1 d	sold on the open market	Cme Group	39,309 shares	up +35.6%	up +34.7%
16 Sep 2019	17 Sep 2019SEC Form 4	1 d	was grantednot a trade	Cme Group	12,680 shares	up +33.1%	up +28.3%
15 Sep 2019	17 Sep 2019SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	2,047 shares	up +33.9%	up +28.3%
15 Sep 2019	17 Sep 2019SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	2,066 shares	up +33.9%	up +28.3%
14 Sep 2019	17 Sep 2019SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,631 shares	up +33.9%	up +28.3%
1 Aug 2019	5 Aug 2019SEC Form 4	4 d	sold on the open market	Cme Group	35,000 shares	up +37.4%	up +36.5%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	was grantednot a trade	Cme Group	13,124 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	5,814 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	was grantednot a trade	Cme Group	13,124 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	5,814 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	10 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	613 shares	up +61.9%	up +63.3%
15 Mar 2019	19 Mar 2019SEC Form 4	4 d	was grantednot a trade	Cme Group	4,408 shares	up +61.9%	up +63.3%
23 Nov 2018	27 Nov 2018SEC Form 4	4 d	sold on the open market	Cme Group	10,000 shares	up +45.5%	up +41.9%
15 Sep 2018	18 Sep 2018SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	2,080 shares	up +59.1%	up +59.8%
15 Sep 2018	18 Sep 2018SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	2,114 shares	up +59.1%	up +59.8%
14 Sep 2018	18 Sep 2018SEC Form 4	4 d	was grantednot a trade	Cme Group	15,160 shares	up +59.1%	up +59.8%
22 May 2018	23 May 2018SEC Form 4	1 d	sold on the open market	Cme Group	20,000 shares	up +71.3%	up +72.1%
15 Mar 2018	19 Mar 2018SEC Form 4	4 d	was grantednot a trade	Cme Group	28,710 shares	up +66.6%	up +68.5%
15 Mar 2018	19 Mar 2018SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	12,720 shares	up +66.6%	up +68.5%
15 Mar 2018	19 Mar 2018SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	635 shares	up +66.6%	up +68.5%
15 Mar 2018	19 Mar 2018SEC Form 4	4 d	was grantednot a trade	Cme Group	92 shares	up +66.6%	up +68.5%
6 Feb 2018	8 Feb 2018SEC Form 4	2 d	sold on the open market	Cme Group	20,000 shares	up +74.8%	up +80.0%
31 Dec 2017	2 Jan 2018SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	411 shares	up +88.7%	up +90.3%
31 Dec 2017	2 Jan 2018SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,358 shares	up +88.7%	up +90.3%
31 Dec 2017	2 Jan 2018SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,358 shares	up +88.7%	up +90.3%
31 Dec 2017	2 Jan 2018SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,564 shares	up +88.7%	up +90.3%
16 Sep 2017	19 Sep 2017SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,488 shares	up +109.9%	up +109.0%
15 Sep 2017	19 Sep 2017SEC Form 4	4 d	was grantednot a trade	Cme Group	19,992 shares	up +109.9%	up +109.0%
15 Sep 2017	19 Sep 2017SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	5,285 shares	up +109.9%	up +109.0%
2 Aug 2017	3 Aug 2017SEC Form 4	1 d	sold on the open market	Cme Group	21,815 shares	up +121.9%	up +120.4%
15 Mar 2017	17 Mar 2017SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	13,938 shares	up +120.9%	up +121.2%
15 Mar 2017	17 Mar 2017SEC Form 4	2 d	was grantednot a trade	Cme Group	30,496 shares	up +120.9%	up +121.2%
15 Mar 2017	17 Mar 2017SEC Form 4	2 d	was grantednot a trade	Cme Group	6,012 shares	up +120.9%	up +121.2%
14 Mar 2017	15 Mar 2017SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	408 shares	up +121.4%	up +120.9%
8 Dec 2016	9 Dec 2016SEC Form 4	1 d	exercised options overnot a trade	Cme Group	27,550 shares	up +125.3%	up +124.5%
8 Dec 2016	9 Dec 2016SEC Form 4	1 d	sold on the open market	Cme Group	27,550 shares	up +125.3%	up +124.5%
8 Dec 2016	9 Dec 2016SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	27,550 shares	up +125.3%	up +124.5%
25 Nov 2016	28 Nov 2016SEC Form 4	3 d	exercised options overnot a trade	Cme Group	17,375 shares	up +144.2%	up +146.3%
25 Nov 2016	28 Nov 2016SEC Form 4	3 d	sold on the open market	Cme Group	17,375 shares	up +144.2%	up +146.3%
25 Nov 2016	28 Nov 2016SEC Form 4	3 d	exercised options overnot a trade	Cme Groupderivative	17,375 shares	up +144.2%	up +146.3%
16 Sep 2016	19 Sep 2016SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,485 shares	up +151.3%	up +151.0%
15 Sep 2016	19 Sep 2016SEC Form 4	4 d	was grantednot a trade	Cme Group	20,588 shares	up +152.1%	up +151.0%
15 Sep 2016	16 Sep 2016SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	3,026 shares	up +152.1%	up +151.3%
14 Sep 2016	16 Sep 2016SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,730 shares	up +156.2%	up +151.3%
15 Mar 2016	17 Mar 2016SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	17,609 shares	up +184.9%	up +185.8%
15 Mar 2016	17 Mar 2016SEC Form 4	2 d	was grantednot a trade	Cme Group	37,144 shares	up +184.9%	up +185.8%
14 Mar 2016	15 Mar 2016SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	422 shares	up +185.9%	up +184.9%
9 Mar 2016	10 Mar 2016SEC Form 4	1 d	exercised options overnot a trade	Cme Group	5,340 shares	up +193.4%	up +194.0%
9 Mar 2016	10 Mar 2016SEC Form 4	1 d	sold on the open market	Cme Group	5,340 shares	up +193.4%	up +194.0%
9 Mar 2016	10 Mar 2016SEC Form 4	1 d	sold on the open market	Cme Group	5,000 shares	up +193.4%	up +194.0%
9 Mar 2016	10 Mar 2016SEC Form 4	1 d	sold on the open market	Cme Group	5,000 shares	up +193.4%	up +194.0%
9 Mar 2016	10 Mar 2016SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	5,340 shares	up +193.4%	up +194.0%
16 Sep 2015	17 Sep 2015SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	1,560 shares	up +188.9%	up +198.5%
15 Sep 2015	17 Sep 2015SEC Form 4	2 d	was grantednot a trade	Cme Group	13,124 shares	up +189.3%	up +198.5%
15 Sep 2015	16 Sep 2015SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	3,341 shares	up +189.3%	up +188.9%
14 Sep 2015	16 Sep 2015SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,815 shares	up +191.8%	up +188.9%
29 May 2015	1 Jun 2015SEC Form 4	3 d	sold on the open market	Cme Group	3,496 shares	up +192.5%	up +192.7%
28 May 2015	1 Jun 2015SEC Form 4	4 d	sold on the open market	Cme Group	26,000 shares	up +193.0%	up +192.7%
15 Mar 2015	17 Mar 2015SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	680 shares	up +184.6%	up +176.2%
14 Mar 2015	17 Mar 2015SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	452 shares	up +184.6%	up +176.2%
11 Feb 2015	12 Feb 2015SEC Form 4	1 d	exercised options overnot a trade	Cme Group	30,875 shares	up +190.6%	up +189.1%
11 Feb 2015	12 Feb 2015SEC Form 4	1 d	sold on the open market	Cme Group	30,875 shares	up +190.6%	up +189.1%
11 Feb 2015	12 Feb 2015SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	30,875 shares	up +190.6%	up +189.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	exercised options overnot a trade	Cme Group	5,340 shares	up +225.0%	up +223.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	sold on the open market	Cme Group	5,340 shares	up +225.0%	up +223.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	exercised options overnot a trade	Cme Group	9,240 shares	up +225.0%	up +223.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	sold on the open market	Cme Group	9,240 shares	up +225.0%	up +223.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	9,240 shares	up +225.0%	up +223.1%
3 Nov 2014	4 Nov 2014SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	5,340 shares	up +225.0%	up +223.1%
16 Sep 2014	17 Sep 2014SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	1,677 shares	up +245.0%	up +241.5%
15 Sep 2014	16 Sep 2014SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	3,389 shares	up +245.2%	up +245.0%
15 Sep 2014	16 Sep 2014SEC Form 4	1 d	was grantednot a trade	Cme Group	15,660 shares	up +245.2%	up +245.0%
14 Sep 2014	16 Sep 2014SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,946 shares	up +247.3%	up +245.0%
15 Mar 2014	18 Mar 2014SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	725 shares	up +265.6%	up +263.0%
14 Mar 2014	18 Mar 2014SEC Form 4	4 d	was grantednot a trade	Cme Group	4,148 shares	up +265.6%	up +263.0%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	9,240 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	5,340 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	7,945 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Group	5,340 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	sold on the open market	Cme Group	5,340 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Group	9,240 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	sold on the open market	Cme Group	9,240 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	exercised options overnot a trade	Cme Group	7,945 shares	up +229.7%	up +228.6%
21 Nov 2013	22 Nov 2013SEC Form 4	1 d	sold on the open market	Cme Group	7,945 shares	up +229.7%	up +228.6%
16 Sep 2013	17 Sep 2013SEC Form 4	1 d	was grantednot a trade	Cme Group	15,248 shares	up +284.1%	up +283.0%
15 Sep 2013	17 Sep 2013SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,846 shares	up +280.8%	up +283.0%
15 Sep 2013	17 Sep 2013SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,864 shares	up +280.8%	up +283.0%
15 Sep 2013	17 Sep 2013SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	1,741 shares	up +280.8%	up +283.0%
14 Sep 2013	17 Sep 2013SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	2,075 shares	up +280.8%	up +283.0%
16 Jun 2013	18 Jun 2013SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	508 shares	up +270.9%	up +256.5%
15 Mar 2013	19 Mar 2013SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	1,362 shares	up +336.4%	up +350.7%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Groupderivative	18,480 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Groupderivative	5,340 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Groupderivative	15,890 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Group	5,340 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	sold on the open market	Cme Group	5,340 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Group	18,480 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	sold on the open market	Cme Group	18,480 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	exercised options overnot a trade	Cme Group	15,890 shares	up +336.8%	up +340.3%
14 Mar 2013	18 Mar 2013SEC Form 4	4 d	sold on the open market	Cme Group	15,890 shares	up +336.8%	up +340.3%
8 Mar 2013	12 Mar 2013SEC Form 4	4 d	was grantednot a trade	Cme Group	6,660 shares	up +342.0%	up +340.9%
15 Sep 2012	18 Sep 2012SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,629 shares	up +367.9%	up +371.8%
15 Sep 2012	18 Sep 2012SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,719 shares	up +367.9%	up +371.8%
15 Sep 2012	18 Sep 2012SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	1,591 shares	up +367.9%	up +371.8%
14 Sep 2012	18 Sep 2012SEC Form 4	4 d	was grantednot a trade	Cme Group	18,572 shares	up +367.9%	up +371.8%
16 Jun 2012	19 Jun 2012SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	90 shares	up +395.7%	up +392.2%
15 Jun 2012	19 Jun 2012SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	68 shares	up +395.7%	up +392.2%
15 Dec 2011	19 Dec 2011SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	39 shares	up +476.2%	up +469.3%
15 Sep 2011	19 Sep 2011SEC Form 4	4 d	was grantednot a trade	Cme Groupderivative	4,272 shares	up +406.8%	up +418.3%
15 Sep 2011	19 Sep 2011SEC Form 4	4 d	was grantednot a trade	Cme Group	3,464 shares	up +406.8%	up +418.3%
15 Sep 2011	19 Sep 2011SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	333 shares	up +406.8%	up +418.3%
15 Sep 2011	19 Sep 2011SEC Form 4	4 d	had shares withheld for taxnot a trade	Cme Group	326 shares	up +406.8%	up +418.3%
16 Jun 2011	17 Jun 2011SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	90 shares	up +400.9%	up +395.8%
15 Jun 2011	17 Jun 2011SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	68 shares	up +408.1%	up +395.8%
15 Mar 2011	17 Mar 2011SEC Form 4	2 d	was grantednot a trade	Cme Group	274 shares	up +381.9%	up +379.7%
28 Feb 2011	1 Mar 2011SEC Form 4	1 d	exercised options overnot a trade	Cme Groupderivative	1,589 shares	up +342.6%	up +349.5%
28 Feb 2011	1 Mar 2011SEC Form 4	1 d	exercised options overnot a trade	Cme Group	1,589 shares	up +342.6%	up +349.5%
28 Feb 2011	1 Mar 2011SEC Form 4	1 d	sold on the open market	Cme Group	1,589 shares	up +342.6%	up +349.5%
15 Dec 2010	17 Dec 2010SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	28 shares	up +332.7%	up +331.5%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Groupderivative	7,392 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Group	3,296 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	232 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Groupderivative	7,392 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Group	3,296 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	232 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Groupderivative	7,392 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	was grantednot a trade	Cme Group	3,296 shares	up +407.5%	up +422.1%
15 Sep 2010	17 Sep 2010SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	232 shares	up +407.5%	up +422.1%
12 Aug 2010	13 Aug 2010SEC Form 4	1 d	bought on the open market	Cme Group	1,000 shares	up +452.4%	up +462.7%
16 Jun 2010	17 Jun 2010SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	64 shares	up +343.5%	up +345.1%
15 Jun 2010	17 Jun 2010SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	49 shares	up +344.8%	up +345.1%
15 Dec 2009	16 Dec 2009SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	28 shares	up +315.9%	up +316.8%
3 Dec 2009	7 Dec 2009SEC Form 4	4 d	sold on the open market	Cme Group	1,400 shares	up +317.5%	up +325.6%
15 Sep 2009	17 Sep 2009SEC Form 4	2 d	was grantednot a trade	Cme Groupderivative	6,356 shares	up +384.5%	up +369.7%
15 Sep 2009	17 Sep 2009SEC Form 4	2 d	was grantednot a trade	Cme Group	3,144 shares	up +384.5%	up +369.7%
16 Jun 2009	17 Jun 2009SEC Form 4	1 d	had shares withheld for taxnot a trade	Cme Group	64 shares	up +317.6%	up +322.0%
15 Jun 2009	17 Jun 2009SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	49 shares	up +315.5%	up +322.0%
15 Dec 2008	17 Dec 2008SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	37 shares	up +577.4%	up +517.9%
16 Jun 2008	18 Jun 2008SEC Form 4	2 d	was grantednot a trade	Cme Groupderivative	6,175 shares	up +228.5%	up +211.9%
16 Jun 2008	18 Jun 2008SEC Form 4	2 d	was grantednot a trade	Cme Group	1,080 shares	up +228.5%	up +211.9%
15 Jun 2008	18 Jun 2008SEC Form 4	3 d	had shares withheld for taxnot a trade	Cme Group	65 shares	up +232.1%	up +211.9%
15 Dec 2007	17 Dec 2007SEC Form 4	2 d	had shares withheld for taxnot a trade	Cme Group	28 shares	up +97.1%	up +99.2%
15 Jun 2007	19 Jun 2007SEC Form 4	4 d	was grantednot a trade	Chicago Mercantile Exchange Holdingsderivative	5,510 shares	up +149.3%	up +152.2%
15 Jun 2007	19 Jun 2007SEC Form 4	4 d	was grantednot a trade	Chicago Mercantile Exchange Holdings	820 shares	up +149.3%	up +152.2%
4 Jan 2007	5 Jan 2007SEC Form 4	1 d	sold on the open market	Chicago Mercantile Exchange Holdings	4,000 shares	up +161.5%	up +160.3%
15 Dec 2006	15 Dec 2006SEC Form 4	0 d	was grantednot a trade	Chicago Mercantile Exchange Holdingsderivative	3,475 shares	up +158.5%	up +158.5%
15 Dec 2006	15 Dec 2006SEC Form 4	0 d	was grantednot a trade	Chicago Mercantile Exchange Holdings	460 shares	up +158.5%	up +158.5%
25 May 2006	30 May 2006SEC Form 4	5 d	was grantednot a trade	Chicago Mercantile Exchange Holdings	100 shares	up +210.3%	up +215.3%
21 Feb 2006	22 Feb 2006SEC Form 4	1 d	sold on the open market	Chicago Mercantile Exchange Holdings	100 shares	up +234.3%	up +226.0%
21 Feb 2006	22 Feb 2006SEC Form 4	1 d	sold on the open market	Chicago Mercantile Exchange Holdings	1,900 shares	up +234.3%	up +226.0%

Both percentages are the stock’s move, not Terrence A. Duffy’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. 213 of the 213 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.