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4D Molecular Therapeutics, Inc.

FDMT Net buying
CIK 0001650648 #2652 in the set updated 17 Sep 2026
Bought (120 mo)
$51.07M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$28.82M
$7.67M on a plan · $4.37M straight out of an exercise
Sold at will
$16.79M
24 of 92 sales
Net
+$22.25M
+$34.29M against sales at will

By person

14 insiders · 101 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
VIKING GLOBAL INVESTORS LP entity
10% owner
$38.90M (2)
$10.55M (1)
+$28.35M
8,185,828
14.83%
$113.81M
+107.9%
Kirn David
See Remarks
—
$12.53M (28) scheduled
−$12.53M
1,367,486
2.48%
$19.01M
−31.6%
YAO TONY DUNG LING
Director
$9.78M (1)
—
+$9.78M
1,063,744
1.93%
$14.79M
—
SCHAFFER DAVID
Director
—
$3.01M (13)
−$3.01M
901,215
1.63%
$12.53M
−9.9%
MILLIGAN JOHN F
Director
$2.30M (1)
—
+$2.30M
100,000
0.1811%
$1.39M
—
Bizily Scott
Chief Legal Officer
—
$1.89M (41) scheduled
−$1.89M
8,617
0.0156%
$119.80K
−46.6%
Kim Robert Young
Chief Medical Officer
—
$737.79K (4) scheduled
−$737.79K
1,043
0.0019%
$14.50K
−34.6%
Chacko Jacob
Director
—
$100.27K (1) scheduled
−$100.27K
0
0.0000%
$0.00
—
Kamal Fariborz
President & COO
$99.98K (1)
—
+$99.98K
4,347
0.0079%
$60.44K
—
Gupta Ashoo
VP, Finance and Controller
—
$6.73K (4) scheduled
−$6.73K
47,055
0.0852%
$654.21K
+3.1%
RA CAPITAL MANAGEMENT, L.P. entity
10% owner
—
—
—
4,563,211
8.26%
$63.44M
−10.5%
BVF PARTNERS L P/IL entity
See Explanation of Responses
—
—
—
87,911
0.1592%
$1.22M
−98.5%
THEUER CHARLES
Director
—
—
—
41,684
0.0755%
$579.53K
+28.8%
Moretti August J
Chief Financial Officer
—
—
—
11,045
0.0200%
$153.56K
+173.1%

Individual transactions

52
Insider
Date
Role
Action
Shares
Price
Amount
Bizily Scott
1 Sep 2026
Chief Legal Officer
Sold after exercise
584
$14.00
$8.18K
Kirn David
19 Aug 2026
See Remarks
Sold after exercise
25,927
$16.42
$425.65K
Kirn David
19 Aug 2026
See Remarks
Sold after exercise
43,149
$15.36
$662.62K
Bizily Scott
17 Aug 2026
Chief Legal Officer
Sold after exercise
1,635
$12.20
$19.95K
Bizily Scott
13 Aug 2026
Chief Legal Officer
Sold after exercise
1,635
$12.00
$19.62K
Bizily Scott
30 Jun 2026
Chief Legal Officer
Sold after exercise
6,566
$14.00
$91.92K
Bizily Scott
23 Jun 2026
Chief Legal Officer
Sold after exercise
9,810
$12.00
$117.72K
Gupta Ashoo
20 Mar 2026
VP, Finance and Controller
Sold after exercise
80
$8.61
$688.80
Gupta Ashoo
20 Mar 2026
VP, Finance and Controller
Sold after exercise
310
$8.61
$2.67K
Gupta Ashoo
20 Dec 2025
VP, Finance and Controller
Sold after exercise
79
$8.68
$685.72
Gupta Ashoo
20 Dec 2025
VP, Finance and Controller
Sold after exercise
310
$8.68
$2.69K
Bizily Scott
16 Dec 2025
Chief Legal Officer
Sold after exercise
1,635
$10.90
$17.82K
Bizily Scott
17 Nov 2025
Chief Legal Officer
Sold after exercise
1,635
$10.59
$17.31K
Bizily Scott
24 Oct 2025
Chief Legal Officer
Sold after exercise
2,678
$12.00
$32.14K
Bizily Scott
16 Oct 2025
Chief Legal Officer
Sold after exercise
1,635
$10.17
$16.63K
Bizily Scott
16 Sep 2024
Chief Legal Officer
Sold after exercise
500
$16.33
$8.17K
Bizily Scott
19 Aug 2024
Chief Legal Officer
Sold after exercise
500
$15.00
$7.50K
Bizily Scott
16 Jul 2024
Chief Legal Officer
Sold after exercise
1,750
$27.11
$47.44K
Bizily Scott
11 Jul 2024
Chief Legal Officer
Sold after exercise
1,996
$25.00
$49.90K
Kirn David
10 Jul 2024
Chief Executive Officer
Sold after exercise
12,923
$22.49
$290.60K
Bizily Scott
1 Jul 2024
Chief Legal Officer
Sold after exercise
4,248
$21.36
$90.76K
Kirn David
24 Jun 2024
Chief Executive Officer
Sold after exercise
12,930
$23.10
$298.71K
Bizily Scott
17 Jun 2024
Chief Legal Officer
Sold after exercise
1,750
$23.71
$41.49K
Bizily Scott
16 May 2024
Chief Legal Officer
Sold after exercise
467
$25.75
$12.03K
Bizily Scott
16 May 2024
Chief Legal Officer
Sold after exercise
1,283
$25.34
$32.51K
Bizily Scott
16 Apr 2024
Chief Legal Officer
Sold after exercise
1,750
$25.74
$45.05K
Bizily Scott
1 Apr 2024
Chief Legal Officer
Sold after exercise
8,153
$31.78
$259.10K
Bizily Scott
27 Mar 2024
Chief Legal Officer
Sold after exercise
5,833
$35.04
$204.41K
Bizily Scott
18 Mar 2024
Chief Legal Officer
Sold after exercise
1,750
$31.27
$54.72K
Bizily Scott
27 Feb 2024
Chief Legal Officer
Sold after exercise
1,909
$30.00
$57.27K
Bizily Scott
16 Feb 2024
Chief Legal Officer
Sold after exercise
1,750
$27.67
$48.42K
Bizily Scott
8 Feb 2024
Chief Legal Officer
Sold after exercise
1,996
$27.50
$54.89K
Bizily Scott
8 Feb 2024
Chief Legal Officer
Sold after exercise
2,916
$27.50
$80.19K
Bizily Scott
8 Feb 2024
Chief Legal Officer
Sold after exercise
1,332
$27.50
$36.63K
Kim Robert Young
5 Feb 2024
Chief Medical Officer
Sold after exercise
552
$30.05
$16.59K
Kim Robert Young
5 Feb 2024
Chief Medical Officer
Sold after exercise
6,000
$30.05
$180.30K
Kim Robert Young
5 Feb 2024
Chief Medical Officer
Sold after exercise
6,000
$30.05
$180.30K
Kim Robert Young
5 Feb 2024
Chief Medical Officer
Sold after exercise
12,000
$30.05
$360.60K
Bizily Scott
8 Jun 2023
Chief Legal and HR Officer
Sold after exercise
3,750
$20.85
$78.19K
Bizily Scott
1 Jun 2023
Chief Legal and HR Officer
Sold after exercise
2,247
$18.31
$41.14K
Chacko Jacob
21 Apr 2023
Director
Sold after exercise
5,000
$20.05
$100.27K
Bizily Scott
21 Apr 2023
Chief Legal and HR Officer
Sold after exercise
3,750
$20.00
$75.00K
Bizily Scott
1 Mar 2023
Chief Legal and HR Officer
Sold after exercise
2,248
$19.30
$43.39K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
375
$24.35
$9.13K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
100
$24.49
$2.45K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
200
$23.44
$4.69K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
2,450
$22.93
$56.18K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
1,000
$21.78
$21.78K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
100
$24.49
$2.45K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
400
$23.25
$9.30K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
975
$22.71
$22.15K
Bizily Scott
1 Dec 2022
Chief Legal and HR Officer
Sold after exercise
400
$21.52
$8.61K
Show all 101 transactions →

What was left out

Form 4 filings counted 139
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 5
Sales on a Rule 10b5-1 plan 16
Sales straight out of an exercise 52
Sales at will 24
Transactions with no price 0
Shares from compensation/vesting 11,097,993
Sales filed before the plan box existed 22
History held since 17 Dec 2020