Solid Biosciences Inc (SLDB)

The most recent insider trading activity at Solid Biosciences Inc. occurred on February 18, 2026. Multiple executives and directors, including the CEO and CFO, engaged in a series of sales and proposed sales of company shares. These transactions represent the latest recorded insider activity, with no further trades reported in the subsequent months.
Ticker: SLDB Exchange: NSM


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Insider trades have triggered activity signals for Solid Biosciences Inc. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Cumbo Alexander
President and CEO
2 sales — total 193,846 USD
Sale 18 Feb 2026
Value US$4,563,906.55 | Price 135.68 | Shares 87,786
Proposed sale 18 Feb 2026
Value US$2,996,900.95 | Price 162.62 | Shares 75,084
Proposed sale 18 Feb 2026
Value US$1,830,383.87 | Price 171.65 | Shares 78,967
Sale 18 Feb 2026
Value US$24,073.52 | Price 5.82 | Shares 4,134
Proposed sale 18 Feb 2026
Value US$24,073.52 | Price 5.82 | Shares 4,134
Sale 18 Feb 2026
Value US$15,478.33 | Price 5.82 | Shares 2,658
Proposed sale 18 Feb 2026
Value US$15,748.33 | Price 5.92 | Shares 2,658
Proposed sale 18 Feb 2026
Value US$21,057.05 | Price 5.82 | Shares 3,616
Sale 18 Feb 2026
Value US$21,057.05 | Price 5.82 | Shares 3,616
Sale 18 Feb 2026
Value US$43,494.23 | Price 5.82 | Shares 7,469
Proposed sale 18 Feb 2026
Value US$43,494.23 | Price 5.82 | Shares 7,469
Proposed sale 18 Feb 2026
Value US$31,469.11 | Price 5.82 | Shares 5,404
Sale 18 Feb 2026
Value US$31,469.11 | Price 5.82 | Shares 5,404
Sale 4 Feb 2026
Value US$95,230.61 | Price 6.44 | Shares 14,783
Proposed sale 4 Feb 2026
Value US$95,226.63 | Price 6.44 | Shares 14,783
Sale 4 Feb 2026
Value US$121,713.26 | Price 6.44 | Shares 18,894
Proposed sale 4 Feb 2026
Value US$121,708.27 | Price 6.44 | Shares 18,894
Sale 4 Feb 2026
Value US$46,413.89 | Price 6.44 | Shares 7,205
Proposed sale 4 Feb 2026
Value US$46,411.95 | Price 6.44 | Shares 7,205
Sale 4 Feb 2026
Value US$315,092.65 | Price 6.44 | Shares 48,913
Proposed sale 4 Feb 2026
Value US$315,079.69 | Price 6.44 | Shares 48,913
Sale 4 Feb 2026
Value US$70,248.92 | Price 6.44 | Shares 10,905
Proposed sale 4 Feb 2026
Value US$70,246.73 | Price 6.44 | Shares 10,905
Sale 4 Feb 2026
Value US$79,544.58 | Price 6.44 | Shares 12,348
Proposed sale 4 Feb 2026
Value US$79,541.32 | Price 6.44 | Shares 12,348
Sale 4 Feb 2026
Value US$81,271.01 | Price 6.44 | Shares 12,616
Proposed sale 4 Feb 2026
Value US$81,267.65 | Price 6.44 | Shares 12,616
Proposed sale 2 Feb 2026
Value US$170,803.14 | Price 6.44 | Shares 26,535
Sale 2 Feb 2026
Value US$170,803.14 | Price 6.44 | Shares 26,535
Proposed sale 2 Feb 2026
Value US$182,389.56 | Price 6.44 | Shares 28,335
Sale 2 Feb 2026
Value US$182,389.56 | Price 6.44 | Shares 28,335
Proposed sale 2 Feb 2026
Value US$172,747.09 | Price 6.44 | Shares 26,837
Sale 2 Feb 2026
Value US$172,747.09 | Price 6.44 | Shares 26,837
Proposed sale 2 Feb 2026
Value US$516,612.72 | Price 6.44 | Shares 80,258
Sale 2 Feb 2026
Value US$516,612.72 | Price 6.44 | Shares 80,258
Proposed sale 2 Feb 2026
Value US$243,128.15 | Price 6.44 | Shares 37,771
Sale 2 Feb 2026
Value US$243,128.15 | Price 6.44 | Shares 37,771
Proposed sale 2 Feb 2026
Value US$168,968.63 | Price 6.44 | Shares 26,250
Sale 2 Feb 2026
Value US$168,968.62 | Price 6.44 | Shares 26,250
Sale 28 Jan 2026
Value US$1,258.69 | Price 6.59 | Shares 191
Proposed sale 13 Jan 2026
Value US$30,060.08 | Price 5.27 | Shares 5,704
Planned sale 13 Jan 2026
Value US$30,060.08 | Price 5.27 | Shares 5,704
Sale 5 Jan 2026
Value US$5,717.79 | Price 5.43 | Shares 1,053
Sale 3 Dec 2025
Value US$25,202.52 | Price 5.11 | Shares 4,932
Sale 3 Dec 2025
Value US$22,908.13 | Price 5.11 | Shares 4,483
Sale 3 Dec 2025
Value US$13,802.11 | Price 5.11 | Shares 2,701
Sale 3 Dec 2025
Value US$55,228.88 | Price 5.11 | Shares 10,808
Proposed sale 3 Dec 2025
Value US$55,228.88 | Price 5.11 | Shares 10,808
Sale 10 Nov 2025
Value US$13,505.36 | Price 4.12 | Shares 3,278
Sale 20 Oct 2025
Value US$17,254.20 | Price 5.96 | Shares 2,895
Buy 11 Mar 2025
Value US$9,924.40 | Price 5.34 | Shares 1,860
Buy 19 Feb 2025
Value US$4,030,000.00 | Price 4.03 | Shares 1,000,000
Buy 19 Feb 2025
Value US$20,150,000.00 | Price 4.03 | Shares 5,000,000
Buy 18 Feb 2025
Value US$1,909,240.20 | Price 7.56 | Shares 252,545
Sale 14 Feb 2025
Value US$12,529.44 | Price 3.96 | Shares 3,164
Proposed sale 14 Feb 2025
Value US$12,529.44 | Price 3.96 | Shares 3,164
Sale 14 Feb 2025
Value US$22,021.56 | Price 3.96 | Shares 5,561
Proposed sale 14 Feb 2025
Value US$22,021.56 | Price 3.96 | Shares 5,561
Sale 14 Feb 2025
Value US$6,775.56 | Price 3.96 | Shares 1,711
Sale 14 Feb 2025
Value US$12,192.84 | Price 3.96 | Shares 3,079
Proposed sale 14 Feb 2025
Value US$12,192.84 | Price 3.96 | Shares 3,079
Sale 14 Feb 2025
Value US$45,005.40 | Price 3.96 | Shares 11,365
Proposed sale 14 Feb 2025
Value US$45,005.40 | Price 3.96 | Shares 11,365
Sale 14 Feb 2025
Value US$12,893.76 | Price 3.96 | Shares 3,256
Sale 14 Feb 2025
Value US$10,644.48 | Price 3.96 | Shares 2,688
Proposed sale 14 Feb 2025
Value US$10,644.48 | Price 3.96 | Shares 2,688
Sale 28 Jan 2025
Value US$447.78 | Price 3.11 | Shares 144
Planned sale 10 Jan 2025
Value US$15,849.26 | Price 3.89 | Shares 4,073
Sale 6 Jan 2025
Value US$4,551.36 | Price 4.31 | Shares 1,056
Proposed sale 3 Dec 2024
Value US$62,236.23 | Price 5.60 | Shares 11,114
Sale 3 Dec 2024
Value US$62,236.18 | Price 5.60 | Shares 11,114
Proposed sale 3 Dec 2024
Value US$28,396.05 | Price 5.60 | Shares 5,072
Sale 3 Dec 2024
Value US$28,396.10 | Price 5.60 | Shares 5,072
Sale 3 Dec 2024
Value US$25,822.45 | Price 5.60 | Shares 4,610
Sale 3 Dec 2024
Value US$15,550.64 | Price 5.60 | Shares 2,777
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
2026-02-18 2026-02-18 S Sale

President and CEO

Executive Director
87,786 -33.1%
135.68
US$4,563,907
87,786 -33.1% 135.68 US$4,563,907
2026-02-18 2026-02-18 PrS Proposed sale

Officer

Officer
78,967
171.65
US$1,830,384
78,967 171.65 US$1,830,384
2026-02-18 2026-02-18 PrS Proposed sale

Officer; Director

Executive Director
75,084
162.62
US$2,996,901
75,084 162.62 US$2,996,901
2026-02-18 2026-02-18 S Sale

Chief Regulatory Officer

Officer
4,134 -5.3%
5.82
US$24,074
4,134 -5.3% 5.82 US$24,074
2026-02-18 2026-02-18 PrS Proposed sale

Officer

Officer
4,134
5.82
US$24,074
4,134 5.82 US$24,074
2026-02-18 2026-02-18 S Sale Non-Executive Director
2,658 -8.8%
5.82
US$15,478
2,658 -8.8% 5.82 US$15,478
2026-02-18 2026-02-18 PrS Proposed sale

Officer

Officer
3,616
5.82
US$21,057
3,616 5.82 US$21,057
2026-02-18 2026-02-18 S Sale

Chief Technology Officer

Officer
3,616 -4.7%
5.82
US$21,057
3,616 -4.7% 5.82 US$21,057
2026-02-18 2026-02-18 PrS Proposed sale

Director

Non-Executive Director
2,658
5.92
US$15,748
2,658 5.92 US$15,748
2026-02-18 2026-02-18 S Sale

Chief Operating Officer

Officer
7,469 -6.6%
5.82
US$43,494
7,469 -6.6% 5.82 US$43,494
2026-02-18 2026-02-18 PrS Proposed sale

Officer

Officer
7,469
5.82
US$43,494
7,469 5.82 US$43,494
2026-02-18 2026-02-18 PrS Proposed sale

Officer

Officer
5,404
5.82
US$31,469
5,404 5.82 US$31,469
2026-02-18 2026-02-18 S Sale

CFO & Treasurer

Officer
5,404 -5.2%
5.82
US$31,469
5,404 -5.2% 5.82 US$31,469
2026-02-06 2026-02-04 S Sale

CFO & Treasurer

Officer
14,783 -13.6%
6.44
US$95,231
14,783 -13.6% 6.44 US$95,231
2026-02-06 2026-02-04 S Sale

Chief Operating Officer

Officer
18,894 -16.2%
6.44
US$121,713
18,894 -16.2% 6.44 US$121,713
2026-02-06 2026-02-04 S Sale Non-Executive Director
7,205 -22.2%
6.44
US$46,414
7,205 -22.2% 6.44 US$46,414
2026-02-06 2026-02-04 S Sale

President and CEO

Executive Director
48,913 -18.1%
6.44
US$315,093
48,913 -18.1% 6.44 US$315,093
2026-02-06 2026-02-04 S Sale

Chief Technology Officer

Officer
10,905 -13.6%
6.44
US$70,249
10,905 -13.6% 6.44 US$70,249
2026-02-06 2026-02-04 S Sale

Chief Regulatory Officer

Officer
12,348 -14.9%
6.44
US$79,545
12,348 -14.9% 6.44 US$79,545
2026-02-06 2026-02-04 S Sale

Chief Medical Officer

Officer
12,616 -13.0%
6.44
US$81,271
12,616 -13.0% 6.44 US$81,271
2026-02-04 2026-02-04 PrS Proposed sale

Officer

Officer
12,616
6.44
US$81,268
12,616 6.44 US$81,268
2026-02-04 2026-02-04 PrS Proposed sale

Officer

Officer
12,348
6.44
US$79,541
12,348 6.44 US$79,541
2026-02-04 2026-02-04 PrS Proposed sale

Director

Non-Executive Director
7,205
6.44
US$46,412
7,205 6.44 US$46,412
2026-02-04 2026-02-04 PrS Proposed sale

Officer

Officer
14,783
6.44
US$95,227
14,783 6.44 US$95,227
2026-02-04 2026-02-04 PrS Proposed sale

Officer

Officer
10,905
6.44
US$70,247
10,905 6.44 US$70,247
2026-02-04 2026-02-04 PrS Proposed sale

Officer; Director

Executive Director
48,913
6.44
US$315,080
48,913 6.44 US$315,080
2026-02-04 2026-02-04 PrS Proposed sale

Officer

Officer
18,894
6.44
US$121,708
18,894 6.44 US$121,708
2026-02-02 2026-02-02 PrS Proposed sale

Officer

Officer
26,535
6.44
US$170,803
26,535 6.44 US$170,803
2026-02-02 2026-02-02 PrS Proposed sale

Officer

Officer
28,335
6.44
US$182,390
28,335 6.44 US$182,390
2026-02-02 2026-02-02 PrS Proposed sale

Officer

Officer
26,837
6.44
US$172,747
26,837 6.44 US$172,747
2026-02-02 2026-02-02 PrS Proposed sale

Officer; Director

Executive Director
80,258
6.44
US$516,613
80,258 6.44 US$516,613
2026-02-02 2026-02-02 PrS Proposed sale

Officer

Officer
37,771
6.44
US$243,128
37,771 6.44 US$243,128
2026-02-02 2026-02-02 PrS Proposed sale

Officer

Officer
26,250
6.44
US$168,969
26,250 6.44 US$168,969
2026-02-02 2026-02-02 S Sale

Chief Medical Officer

Officer
28,335 -22.7%
6.44
US$182,390
28,335 -22.7% 6.44 US$182,390
2026-02-02 2026-02-02 S Sale

Chief Operating Officer

Officer
37,771 -24.4%
6.44
US$243,128
37,771 -24.4% 6.44 US$243,128
2026-02-02 2026-02-02 S Sale

President and CEO

Executive Director
80,258 -22.9%
6.44
US$516,613
80,258 -22.9% 6.44 US$516,613
2026-02-02 2026-02-02 S Sale

Chief Regulatory Officer

Officer
26,535 -24.3%
6.44
US$170,803
26,535 -24.3% 6.44 US$170,803
2026-02-02 2026-02-02 S Sale

Chief Technology Officer

Officer
26,250 -24.7%
6.44
US$168,969
26,250 -24.7% 6.44 US$168,969
2026-02-02 2026-02-02 S Sale

CFO & Treasurer

Officer
26,837 -19.8%
6.44
US$172,747
26,837 -19.8% 6.44 US$172,747
2026-01-30 2026-01-28 S Sale Non-Executive Director
191 -1.1%
6.59
US$1,259
191 -1.1% 6.59 US$1,259
2026-01-13 2026-01-13 PrS Proposed sale

Officer

Officer
5,704
5.27
US$30,060
5,704 5.27 US$30,060
2026-01-13 2026-01-13 PlS Planned sale

CFO & Treasurer

Officer
5,704 -11.0%
5.27
US$30,060
5,704 -11.0% 5.27 US$30,060
2026-01-06 2026-01-05 S Sale Non-Executive Director
1,053 -5.7%
5.43
US$5,718
1,053 -5.7% 5.43 US$5,718
2025-12-04 2025-12-03 S Sale

Chief Operating Officer

Officer
4,932 -13.0%
5.11
US$25,203
4,932 -13.0% 5.11 US$25,203
2025-12-04 2025-12-03 S Sale

Chief Regulatory Officer

Officer
4,483 -14.4%
5.11
US$22,908
4,483 -14.4% 5.11 US$22,908
2025-12-04 2025-12-03 S Sale

Chief Technology Officer

Officer
2,701 -9.2%
5.11
US$13,802
2,701 -9.2% 5.11 US$13,802
2025-12-04 2025-12-03 S Sale

President and CEO

Executive Director
10,808 -11.7%
5.11
US$55,229
10,808 -11.7% 5.11 US$55,229
2025-12-03 2025-12-03 PrS Proposed sale

Officer; Director

Executive Director
10,808
5.11
US$55,229
10,808 5.11 US$55,229
2025-11-13 2025-11-10 S Sale Non-Executive Director
3,278 -3.3%
4.12
US$13,505
3,278 -3.3% 4.12 US$13,505
2025-10-21 2025-10-20 S Sale

Chief Medical Officer

Officer
2,895 -7.9%
5.96
US$17,254
2,895 -7.9% 5.96 US$17,254
2025-03-13 2025-03-11 B Purchase Non-Executive Director
1,860 +169.1%
5.34
US$9,924
1,860 +169.1% 5.34 US$9,924
2025-02-21 2025-02-19 B Purchase Large shareholder
1,000,000 +24.8%
4.03
US$4,030,000
1,000,000 +24.8% 4.03 US$4,030,000
2025-02-21 2025-02-19 B Purchase Non-Executive Director Large shareholder
5,000,000 +73.2%
4.03
US$20,150,000
5,000,000 +73.2% 4.03 US$20,150,000
2025-02-19 2025-02-18 B Purchase Large shareholder
252,545 +6.3%
7.56
US$1,909,240
252,545 +6.3% 7.56 US$1,909,240
2025-02-18 2025-02-14 S Sale

CFO & Treasurer

Officer
3,164 -8.9%
3.96
US$12,529
3,164 -8.9% 3.96 US$12,529
2025-02-18 2025-02-14 S Sale

Chief Operating Officer

Officer
5,561 -18.3%
3.96
US$22,022
5,561 -18.3% 3.96 US$22,022
2025-02-18 2025-02-14 S Sale Non-Executive Director
1,711 -10.3%
3.96
US$6,776
1,711 -10.3% 3.96 US$6,776
2025-02-18 2025-02-14 S Sale

Chief Regulatory Officer

Officer
3,079 -13.8%
3.96
US$12,193
3,079 -13.8% 3.96 US$12,193
2025-02-18 2025-02-14 S Sale

President and CEO

Executive Director
11,365 -15.8%
3.96
US$45,005
11,365 -15.8% 3.96 US$45,005
2025-02-18 2025-02-14 S Sale

Chief Medical Officer

Officer
3,256 -12.5%
3.96
US$12,894
3,256 -12.5% 3.96 US$12,894
2025-02-18 2025-02-14 S Sale

Chief Technology Officer

Officer
2,688 -12.8%
3.96
US$10,644
2,688 -12.8% 3.96 US$10,644
2025-02-14 2025-02-14 PrS Proposed sale

Officer

Officer
5,561
3.96
US$22,022
5,561 3.96 US$22,022
2025-02-14 2025-02-14 PrS Proposed sale

Officer

Officer
2,688
3.96
US$10,644
2,688 3.96 US$10,644
2025-02-14 2025-02-14 PrS Proposed sale

Officer

Officer
3,164
3.96
US$12,529
3,164 3.96 US$12,529
2025-02-14 2025-02-14 PrS Proposed sale

Officer; Director

Executive Director
11,365
3.96
US$45,005
11,365 3.96 US$45,005
2025-02-14 2025-02-14 PrS Proposed sale

Officer

Officer
3,079
3.96
US$12,193
3,079 3.96 US$12,193
2025-01-29 2025-01-28 S Sale Non-Executive Director
144 -1.2%
3.11
US$448
144 -1.2% 3.11 US$448
2025-01-13 2025-01-10 PlS Planned sale

CFO & Treasurer

Officer
4,073 -14.1%
3.89
US$15,849
4,073 -14.1% 3.89 US$15,849
2025-01-07 2025-01-06 S Sale Non-Executive Director
1,056 -8.4%
4.31
US$4,551
1,056 -8.4% 4.31 US$4,551
2024-12-05 2024-12-03 PrS Proposed sale

Officer; Director

Executive Director
11,114
5.60
US$62,236
11,114 5.60 US$62,236
2024-12-04 2024-12-03 PrS Proposed sale

Officer

Officer
5,072
5.60
US$28,396
5,072 5.60 US$28,396
2024-12-04 2024-12-03 S Sale

Chief Regulatory Officer

Officer
4,610 -24.5%
5.60
US$25,822
4,610 -24.5% 5.60 US$25,822
2024-12-04 2024-12-03 S Sale

President and CEO

Executive Director
11,114 -22.4%
5.60
US$62,236
11,114 -22.4% 5.60 US$62,236
2024-12-04 2024-12-03 S Sale

Chief Operating Officer

Officer
5,072 -24.5%
5.60
US$28,396
5,072 -24.5% 5.60 US$28,396
2024-12-04 2024-12-03 S Sale

Chief Technology Officer

Officer
2,777 -18.6%
5.60
US$15,551
2,777 -18.6% 5.60 US$15,551