30% off. Use code SUMMERSALE30 at checkout for 30% off for 12 months on Plus, Pro and Premium subscriptions. Subscribe now
United States Telecommunications Services

Gci Liberty Inc (GLIBA)

Track

Over the last 90 days, Gci Liberty Inc. has seen a net insider buying activity totaling $1,420,516.5. The President and CEO, Ronald A. Duncan, made significant purchases on June 3, 2026, acquiring shares valued at over $1.3 million. This activity occurred amidst a notable stock price decline of 42.4% over the same period.
Stock chart
Ticker: GLIBA Exchange: NSM
Preparing chart...
Download chart Copy chart image Copy link Share to X Share


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
DUNCAN RONALD A
President and CEO
4 purchases — total 400,000 USD
Buy 3 Jun 2026
Value US$1,717,961.05 | Price 223.13 | Shares 35,426
Buy 3 Jun 2026
Value US$725,621.71 | Price 112.85 | Shares 16,728
Buy 3 Jun 2026
Value US$100,000.00 | Price 21.11 | Shares 1,000
Buy 3 Jun 2026
Value US$100,000.00 | Price 21.05 | Shares 1,000
Buy 2 Mar 2026
Value US$995,168.54 | Price 14.55 | Shares 99,362
Buy 17 Nov 2025
Value US$511,683.00 | Price 34.11 | Shares 15,000
Buy 26 Sep 2025
Value US$26,704.16 | Price 35.00 | Shares 763
Buy 25 Sep 2025
Value US$55,790.00 | Price 35.00 | Shares 1,594
Buy 24 Sep 2025
Value US$25,375.00 | Price 35.00 | Shares 725
Buy 22 Sep 2025
Value US$76,075.80 | Price 34.93 | Shares 2,178
Buy 18 Sep 2025
Value US$283,083.25 | Price 34.98 | Shares 8,092
Buy 17 Sep 2025
Value US$1,475,570.47 | Price 34.99 | Shares 42,170
Buy 16 Sep 2025
Value US$77,831.84 | Price 34.93 | Shares 2,228
Buy 15 Sep 2025
Value US$192,289.35 | Price 34.96 | Shares 5,500
Buy 9 Sep 2025
Value US$496,563.80 | Price 35.99 | Shares 13,798
Buy 9 Sep 2025
Value US$10,800.00 | Price 36.00 | Shares 300
Buy 8 Sep 2025
Value US$2,556.00 | Price 36.00 | Shares 71
Buy 4 Sep 2025
Value US$97,200.00 | Price 36.00 | Shares 2,700
Buy 2 Sep 2025
Value US$36,000.00 | Price 36.00 | Shares 1,000
Buy 21 Aug 2025
Value US$581,254.40 | Price 35.98 | Shares 16,153
Buy 20 Aug 2025
Value US$1,528,356.38 | Price 35.87 | Shares 42,605
Buy 20 Aug 2025
Value US$174,069.62 | Price 35.94 | Shares 4,844
Buy 19 Aug 2025
Value US$1,062,768.74 | Price 35.96 | Shares 29,556
Buy 19 Aug 2025
Value US$60,743.69 | Price 35.99 | Shares 1,688
Buy 18 Aug 2025
Value US$938,086.15 | Price 35.74 | Shares 26,247
Buy 18 Aug 2025
Value US$383,553.70 | Price 35.34 | Shares 10,853
Buy 18 Aug 2025
Value US$2,391,695.20 | Price 35.94 | Shares 66,553
Sale 20 Nov 2020
Value US$6,891,120.00 | Price 91.88 | Shares 75,000
Sale 25 Aug 2020
Value US$812,571.00 | Price 81.26 | Shares 10,000
Sale 25 Aug 2020
Value US$431,271.26 | Price 81.20 | Shares 5,311
Sale 25 Aug 2020
Value US$470,021.99 | Price 81.25 | Shares 5,785
Sale 24 Aug 2020
Value US$1,548,982.80 | Price 81.00 | Shares 19,124
Sale 24 Aug 2020
Value US$3,127,073.94 | Price 81.20 | Shares 38,511
Sale 19 Aug 2020
Value US$933,491.59 | Price 81.25 | Shares 11,489
Sale 15 May 2020
Value US$313,663.04 | Price 60.66 | Shares 5,171
Sale 14 May 2020
Value US$2,108,041.70 | Price 61.04 | Shares 34,534
Sale 14 May 2020
Value US$1,819,912.03 | Price 61.01 | Shares 29,829
Sale 23 Mar 2020
Value US$284,012.00 | Price 40.40 | Shares 7,030
Sale 23 Mar 2020
Value US$274,239.17 | Price 41.42 | Shares 6,621
Sale 23 Mar 2020
Value US$258,928.61 | Price 42.43 | Shares 6,102
Sale 23 Mar 2020
Value US$10,681.27 | Price 43.24 | Shares 247
Sale 23 Mar 2020
Value US$119,264.57 | Price 43.40 | Shares 2,748
Sale 23 Mar 2020
Value US$81,123.57 | Price 42.85 | Shares 1,893
Sale 20 Mar 2020
Value US$909,568.07 | Price 44.43 | Shares 20,470
Sale 20 Mar 2020
Value US$8,557.00 | Price 43.00 | Shares 199
Sale 19 Mar 2020
Value US$2,372,398.29 | Price 43.83 | Shares 54,129
Sale 19 Mar 2020
Value US$1,120,889.19 | Price 44.48 | Shares 25,202
Sale 4 Mar 2020
Value US$3,592,500.00 | Price 71.85 | Shares 50,000
Sale 4 Dec 2019
Value US$1,142,866.87 | Price 69.46 | Shares 16,454
Sale 4 Dec 2019
Value US$14,397.15 | Price 70.23 | Shares 205
Sale 3 Dec 2019
Value US$2,953,311.76 | Price 69.98 | Shares 42,205
Sale 2 Dec 2019
Value US$2,190,926.81 | Price 70.39 | Shares 31,127
Sale 11 Sep 2019
Value US$3,188,190.00 | Price 63.76 | Shares 50,000
Sale 20 Aug 2019
Value US$64,491.94 | Price 59.99 | Shares 1,075
Sale 17 May 2019
Value US$3,070,460.60 | Price 60.80 | Shares 50,500
Buy 17 Dec 2018
Value US$23,736.00 | Price 24.00 | Shares 989
Buy 13 Dec 2018
Value US$18,357.25 | Price 24.25 | Shares 757
Buy 12 Dec 2018
Value US$5,892.75 | Price 24.25 | Shares 243
Buy 10 Dec 2018
Value US$23,795.34 | Price 24.06 | Shares 989
Buy 7 Dec 2018
Value US$264.00 | Price 24.00 | Shares 11
Sale 21 Dec 2017
Value US$411,922.44 | Price 40.78 | Shares 10,100
Sale 18 Dec 2017
Value US$304,159.98 | Price 41.10 | Shares 7,400
Sale 7 Dec 2017
Value US$791,490.98 | Price 39.68 | Shares 19,947
Sale 6 Dec 2017
Value US$400,159.66 | Price 39.81 | Shares 10,053
Sale 4 Dec 2017
Value US$207,191.50 | Price 41.44 | Shares 5,000
Sale 7 Nov 2017
Value US$153,040.80 | Price 42.16 | Shares 3,630
Sale 5 Sep 2017
Value US$695,500.00 | Price 42.80 | Shares 16,250
Sale 13 Jun 2017
Value US$278,925.00 | Price 37.19 | Shares 7,500
Sale 5 Jun 2017
Value US$562,650.00 | Price 37.51 | Shares 15,000
Sale 10 May 2017
Value US$216,000.00 | Price 36.00 | Shares 6,000
Sale 9 May 2017
Value US$271,875.00 | Price 36.25 | Shares 7,500
Sale 4 Apr 2017
Value US$620,000.00 | Price 31.00 | Shares 20,000
Sale 12 Jan 2017
Value US$347,382.75 | Price 19.75 | Shares 17,589
Sale 11 Jan 2017
Value US$147,923.56 | Price 19.96 | Shares 7,411
Sale 9 Jan 2017
Value US$112,981.05 | Price 20.15 | Shares 5,607
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-04 2026-06-03 B Purchase
4.5
DUNCAN RONALD A

President and CEO

Executive Director
35,426 +35.1%
223.13
US$1,717,961 		35,426 +35.1% 223.13 US$1,717,961
2026-06-04 2026-06-03 B Purchase
4.5
DUNCAN RONALD A

President and CEO

Executive Director
16,728 +49.2%
112.85
US$725,622 		16,728 +49.2% 112.85 US$725,622
2026-06-04 2026-06-03 B Purchase
4.5
DUNCAN RONALD A

President and CEO

Executive Director
65,138 -21.1%
463.27
US$3,905,097 		65,138 -21.1% 463.27 US$3,905,097
2026-06-04 2026-06-03 B Purchase
4.5
DUNCAN RONALD A

President and CEO

Executive Director
1,000 +2.0%
21.05
US$100,000 		1,000 +2.0% 21.05 US$100,000
2026-03-04 2026-03-02 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
1,834 +0.5%
43.29
US$79,394 		1,834 +0.5% 43.29 US$79,394
2025-11-18 2025-11-17 B Purchase
2.9
Gould Jedd
Non-Executive Director
15,000 +29411.8%
34.11
US$511,683 		15,000 +29411.8% 34.11 US$511,683
2025-09-30 2025-09-26 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
763 +0.1%
35.00
US$26,704 		763 +0.1% 35.00 US$26,704
2025-09-25 2025-09-25 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
1,594 +0.1%
35.00
US$55,790 		1,594 +0.1% 35.00 US$55,790
2025-09-25 2025-09-24 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
725 +0.1%
35.00
US$25,375 		725 +0.1% 35.00 US$25,375
2025-09-22 2025-09-22 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
2,178 +0.2%
34.93
US$76,076 		2,178 +0.2% 34.93 US$76,076
2025-09-22 2025-09-18 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
8,092 +0.7%
34.98
US$283,083 		8,092 +0.7% 34.98 US$283,083
2025-09-17 2025-09-17 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
42,170 +3.6%
34.99
US$1,475,570 		42,170 +3.6% 34.99 US$1,475,570
2025-09-17 2025-09-16 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
2,228 +0.2%
34.93
US$77,832 		2,228 +0.2% 34.93 US$77,832
2025-09-17 2025-09-15 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
5,500 +0.5%
34.96
US$192,289 		5,500 +0.5% 34.96 US$192,289
2025-09-10 2025-09-09 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
13,798 +1.2%
35.99
US$496,564 		13,798 +1.2% 35.99 US$496,564
2025-09-10 2025-09-09 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
300 +0.1%
36.00
US$10,800 		300 +0.1% 36.00 US$10,800
2025-09-10 2025-09-08 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
71 +0.0%
36.00
US$2,556 		71 +0.0% 36.00 US$2,556
2025-09-04 2025-09-04 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
2,700 +0.2%
36.00
US$97,200 		2,700 +0.2% 36.00 US$97,200
2025-09-04 2025-09-02 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
1,000 +0.1%
36.00
US$36,000 		1,000 +0.1% 36.00 US$36,000
2025-08-25 2025-08-21 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
16,153 +1.4%
35.98
US$581,254 		16,153 +1.4% 35.98 US$581,254
2025-08-20 2025-08-20 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
42,605 +3.9%
35.87
US$1,528,356 		42,605 +3.9% 35.87 US$1,528,356
2025-08-20 2025-08-20 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
4,844 +1.6%
35.94
US$174,070 		4,844 +1.6% 35.94 US$174,070
2025-08-20 2025-08-19 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
29,556 +2.8%
35.96
US$1,062,769 		29,556 +2.8% 35.96 US$1,062,769
2025-08-20 2025-08-19 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
1,688 +0.5%
35.99
US$60,744 		1,688 +0.5% 35.99 US$60,744
2025-08-20 2025-08-18 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
26,247 +2.6%
35.74
US$938,086 		26,247 +2.6% 35.74 US$938,086
2025-08-20 2025-08-18 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
10,853 +3.7%
35.34
US$383,554 		10,853 +3.7% 35.34 US$383,554
2025-08-20 2025-08-18 B Purchase
3.4
MALONE JOHN C
Non-Executive Director Large shareholder
66,553 +28.9%
35.94
US$2,391,695 		66,553 +28.9% 35.94 US$2,391,695
2020-11-24 2020-11-20 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
75,000 -10.4%
91.88
US$6,891,120 		75,000 -10.4% 91.88 US$6,891,120
2020-08-26 2020-08-25 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
10,000 -17.6%
81.26
US$812,571 		10,000 -17.6% 81.26 US$812,571
2020-08-26 2020-08-25 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
5,311 -3.4%
81.20
US$431,271 		5,311 -3.4% 81.20 US$431,271
2020-08-26 2020-08-25 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
5,785 -0.8%
81.25
US$470,022 		5,785 -0.8% 81.25 US$470,022
2020-08-26 2020-08-24 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
19,124 -16.1%
81.00
US$1,548,983 		19,124 -16.1% 81.00 US$1,548,983
2020-08-26 2020-08-24 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
38,511 -5.0%
81.20
US$3,127,074 		38,511 -5.0% 81.20 US$3,127,074
2020-08-21 2020-08-19 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
11,489 -1.5%
81.25
US$933,492 		11,489 -1.5% 81.25 US$933,492
2020-05-18 2020-05-15 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
5,171 -3.2%
60.66
US$313,663 		5,171 -3.2% 60.66 US$313,663
2020-05-18 2020-05-14 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
34,534 -20.4%
61.04
US$2,108,042 		34,534 -20.4% 61.04 US$2,108,042
2020-05-18 2020-05-14 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
29,829 -15.6%
61.01
US$1,819,912 		29,829 -15.6% 61.01 US$1,819,912
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
7,030 -4.0%
40.40
US$284,012 		7,030 -4.0% 40.40 US$284,012
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
6,621 -3.6%
41.42
US$274,239 		6,621 -3.6% 41.42 US$274,239
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
6,102 -3.2%
42.43
US$258,929 		6,102 -3.2% 42.43 US$258,929
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
247 -0.1%
43.24
US$10,681 		247 -0.1% 43.24 US$10,681
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
2,748 -0.4%
43.40
US$119,265 		2,748 -0.4% 43.40 US$119,265
2020-03-25 2020-03-23 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
1,893 -0.2%
42.85
US$81,124 		1,893 -0.2% 42.85 US$81,124
2020-03-23 2020-03-20 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
20,470 -2.6%
44.43
US$909,568 		20,470 -2.6% 44.43 US$909,568
2020-03-23 2020-03-20 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
199 -0.0%
43.00
US$8,557 		199 -0.0% 43.00 US$8,557
2020-03-23 2020-03-19 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
54,129 -6.4%
43.83
US$2,372,398 		54,129 -6.4% 43.83 US$2,372,398
2020-03-23 2020-03-19 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
25,202 -2.9%
44.48
US$1,120,889 		25,202 -2.9% 44.48 US$1,120,889
2020-03-06 2020-03-04 S Sale
4.5
DUNCAN RONALD A
Non-Executive Director
50,000 -20.7%
71.85
US$3,592,500 		50,000 -20.7% 71.85 US$3,592,500
2019-12-04 2019-12-04 S Sale MAFFEI GREGORY B

President and CEO

Executive Director Large shareholder
16,454 -4.4%
69.46
US$1,142,867 		16,454 -4.4% 69.46 US$1,142,867
2019-12-04 2019-12-04 S Sale MAFFEI GREGORY B

President and CEO

Executive Director Large shareholder
205 -0.1%
70.23
US$14,397 		205 -0.1% 70.23 US$14,397
2019-12-04 2019-12-03 S Sale MAFFEI GREGORY B

President and CEO

Executive Director Large shareholder
42,205 -10.1%
69.98
US$2,953,312 		42,205 -10.1% 69.98 US$2,953,312
2019-12-04 2019-12-02 S Sale MAFFEI GREGORY B

President and CEO

Executive Director Large shareholder
31,127 -2.8%
70.39
US$2,190,927 		31,127 -2.8% 70.39 US$2,190,927
2019-09-13 2019-09-11 S Sale
4.5
DUNCAN RONALD A
50,000 -5.4%
63.76
US$3,188,190 		50,000 -5.4% 63.76 US$3,188,190
2019-08-22 2019-08-20 S Sale ROSENTHALER ALBERT E

Chief Corp. Dev. Officer

Officer
1,075 -1.5%
59.99
US$64,492 		1,075 -1.5% 59.99 US$64,492
2019-05-21 2019-05-17 S Sale
4.5
DUNCAN RONALD A
50,500 -17.6%
60.80
US$3,070,461 		50,500 -17.6% 60.80 US$3,070,461
2018-12-20 2018-12-17 B Purchase Carleton Mark D

Chief Financial Officer

Officer
989 +49.5%
24.00
US$23,736 		989 +49.5% 24.00 US$23,736
2018-12-20 2018-12-13 B Purchase Carleton Mark D

Chief Financial Officer

Officer
757 +60.9%
24.25
US$18,357 		757 +60.9% 24.25 US$18,357
2018-12-20 2018-12-12 B Purchase Carleton Mark D

Chief Financial Officer

Officer
243 +24.3%
24.25
US$5,893 		243 +24.3% 24.25 US$5,893
2018-12-20 2018-12-10 B Purchase Carleton Mark D

Chief Financial Officer

Officer
989 +8990.9%
24.06
US$23,795 		989 +8990.9% 24.06 US$23,795
2018-12-20 2018-12-07 B Purchase Carleton Mark D

Chief Financial Officer

Officer
11 +inf%
24.00
US$264 		11 +inf% 24.00 US$264
2017-12-22 2017-12-21 S Sale Mooney Stephen R
10,100 -15.2%
40.78
US$411,922 		10,100 -15.2% 40.78 US$411,922
2017-12-18 2017-12-18 S Sale Mooney Stephen R
7,400 -10.0%
41.10
US$304,160 		7,400 -10.0% 41.10 US$304,160
2017-12-08 2017-12-07 S Sale CHAPADOS GREGORY F

President and COO
19,947 -4.0%
39.68
US$791,491 		19,947 -4.0% 39.68 US$791,491
2017-12-08 2017-12-06 S Sale CHAPADOS GREGORY F

President and COO
10,053 -2.0%
39.81
US$400,160 		10,053 -2.0% 39.81 US$400,160
2017-12-04 2017-12-04 S Sale Pounds Peter

SVP, CFO and Secretary
5,000 -2.4%
41.44
US$207,192 		5,000 -2.4% 41.44 US$207,192
2017-11-09 2017-11-07 S Sale HUGHES G WILSON

EVP
3,630 -0.6%
42.16
US$153,041 		3,630 -0.6% 42.16 US$153,041
2017-09-06 2017-09-05 S Sale BEHNKE WILLIAM C

Sr VP
16,250 -8.9%
42.80
US$695,500 		16,250 -8.9% 42.80 US$695,500
2017-06-14 2017-06-13 S Sale Mooney Stephen R
7,500 -9.2%
37.19
US$278,925 		7,500 -9.2% 37.19 US$278,925
2017-06-06 2017-06-05 S Sale GLASGOW WILLIAM PARKER
15,000 -22.5%
37.51
US$562,650 		15,000 -22.5% 37.51 US$562,650
2017-05-12 2017-05-10 S Sale Pounds Peter

SVP, CFO and Secretary

Officer
6,000 -2.7%
36.00
US$216,000 		6,000 -2.7% 36.00 US$216,000
2017-05-10 2017-05-09 S Sale GLASGOW WILLIAM PARKER Non-Executive Director
7,500 -11.3%
36.25
US$271,875 		7,500 -11.3% 36.25 US$271,875
2017-04-05 2017-04-04 S Sale BEHNKE WILLIAM C

Sr VP
20,000 -9.9%
31.00
US$620,000 		20,000 -9.9% 31.00 US$620,000
2017-01-12 2017-01-12 S Sale CHAPADOS GREGORY F

Exec VP and COO
17,589 -3.6%
19.75
US$347,383 		17,589 -3.6% 19.75 US$347,383
2017-01-12 2017-01-11 S Sale CHAPADOS GREGORY F

Exec VP and COO
7,411 -1.5%
19.96
US$147,924 		7,411 -1.5% 19.96 US$147,924
2017-01-12 2017-01-09 S Sale CHAPADOS GREGORY F

Exec VP and COO
5,607 -35.9%
20.15
US$112,981 		5,607 -35.9% 20.15 US$112,981
Explore more

More insider trading research around Gci Liberty Inc

More insider trades in United States
Similar Technology companies with insider activity
More Telecommunications Services companies with insider activity
More Telecommunications Services companies with insider activity
Insider trading in North America