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Solid Biosciences Inc.

SLDB Mostly scheduled
CIK 0001707502 #2572 in the set updated 19 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$2.68M
$2.65M on a plan · $0.00 straight out of an exercise
Sold at will
$36.48K
3 of 29 sales
Net
−$2.68M
−$36.48K against sales at will

By person

12 insiders · 29 transactions
2.1×

Alexander Cumbo holds only 2.1 times base salary in stock. $1.37M of shares against $650.99K in salary for 2025.

Salary from the company's own proxy. The shares are what Alexander Cumbo last reported holding, valued at $5.82, the price Common Stock was last bought or sold at on the open market here, on 18 Feb 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Cumbo Alexander
President and CEO
$983.86K (4) scheduled
−$983.86K
235,405
$1.37M
+758.5%
Howton David T
Chief Operating Officer
$433.54K (4) scheduled
−$433.54K
105,077
$611.89K
+1,267%
Tan Kevin
CFO & Treasurer
$329.51K (4) scheduled
−$329.51K
99,422
$578.96K
+283.6%
Hanrahan Jessie
Chief Regulatory Officer
$297.33K (4) scheduled
−$297.33K
74,318
$432.78K
+964.3%
Brooks Gabriel
Chief Medical Officer
$280.91K (4) scheduled
−$280.91K
89,466
$520.99K
+710.0%
Herzich Paul
Chief Technology Officer
$274.08K (4) scheduled
−$274.08K
72,638
$422.99K
+453.5%
Ganot Ilan
Director
$82.37K (5) scheduled
−$82.37K
126,771
$738.23K
+20.9%
PERCEPTIVE ADVISORS LLC entity
Director
11,833,539
$68.91M
+73.2%
Bain Capital Life Sciences Investors, LLC entity
10% owner
5,034,582
$29.32M
+24.8%
Adage Capital Management, L.P. entity
10% owner
4,248,084
$24.74M
+6.3%
SMITH IAN F
Director
138,145
$804.46K
+29.8%
Kahn Clare
Director
2,960
$17.24K
+169.1%

No percentages here. This company's share count has moved by a factor of 2.7 over the window, from 39,954,607 to 107,225,238 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Tan Kevin
18 Feb 2026
CFO & Treasurer
Sold on a plan
5,404
$5.82
$31.47K
Brooks Gabriel
18 Feb 2026
Chief Medical Officer
Sold on a plan
0
$5.82
$0.00
Howton David T
18 Feb 2026
Chief Operating Officer
Sold on a plan
7,469
$5.82
$43.49K
Herzich Paul
18 Feb 2026
Chief Technology Officer
Sold on a plan
3,616
$5.82
$21.06K
Ganot Ilan
18 Feb 2026
Director
Sold on a plan indirect
2,658
$5.82
$15.48K
Hanrahan Jessie
18 Feb 2026
Chief Regulatory Officer
Sold on a plan
4,134
$5.82
$24.07K
Cumbo Alexander
18 Feb 2026
President and CEO
Sold on a plan
16,644
$5.82
$96.92K
Herzich Paul
4 Feb 2026
Chief Technology Officer
Sold on a plan
10,905
$6.44
$70.25K
Hanrahan Jessie
4 Feb 2026
Chief Regulatory Officer
Sold on a plan
12,348
$6.44
$79.54K
Brooks Gabriel
4 Feb 2026
Chief Medical Officer
Sold on a plan
12,616
$6.44
$81.27K
Tan Kevin
4 Feb 2026
CFO & Treasurer
Sold on a plan
14,783
$6.44
$95.23K
Ganot Ilan
4 Feb 2026
Director
Sold on a plan indirect
7,205
$6.44
$46.41K
Cumbo Alexander
4 Feb 2026
President and CEO
Sold on a plan
48,913
$6.44
$315.09K
Howton David T
4 Feb 2026
Chief Operating Officer
Sold on a plan
18,894
$6.44
$121.71K
Herzich Paul
2 Feb 2026
Chief Technology Officer
Sold on a plan
26,250
$6.44
$168.97K
Howton David T
2 Feb 2026
Chief Operating Officer
Sold on a plan
37,771
$6.44
$243.13K
Brooks Gabriel
2 Feb 2026
Chief Medical Officer
Sold on a plan
28,335
$6.44
$182.39K
Hanrahan Jessie
2 Feb 2026
Chief Regulatory Officer
Sold on a plan
26,535
$6.44
$170.80K
Cumbo Alexander
2 Feb 2026
President and CEO
Sold on a plan
80,258
$6.44
$516.61K
Tan Kevin
2 Feb 2026
CFO & Treasurer
Sold on a plan
26,837
$6.44
$172.75K
Ganot Ilan
28 Jan 2026
Director
Sold on a plan indirect
191
$6.59
$1.26K
Tan Kevin
13 Jan 2026
CFO & Treasurer
Sold on a plan
5,704
$5.27
$30.06K
Ganot Ilan
5 Jan 2026
Director
Sell indirect
1,053
$5.43
$5.72K
Herzich Paul
3 Dec 2025
Chief Technology Officer
Sold on a plan
2,701
$5.11
$13.80K
Hanrahan Jessie
3 Dec 2025
Chief Regulatory Officer
Sold on a plan
4,483
$5.11
$22.91K
Cumbo Alexander
3 Dec 2025
President and CEO
Sold on a plan
10,808
$5.11
$55.23K
Howton David T
3 Dec 2025
Chief Operating Officer
Sold on a plan
4,932
$5.11
$25.20K
Ganot Ilan
10 Nov 2025
Director
Sell
3,278
$4.12
$13.51K
Brooks Gabriel
20 Oct 2025
Chief Medical Officer
Sell
2,895
$5.96
$17.25K

What was left out

Form 4 filings counted 50
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 2
Sales on a Rule 10b5-1 plan 26
Sales straight out of an exercise 0
Sales at will 3
Transactions with no price 0
Shares from compensation/vesting 936,871
History held since 30 Jan 2018