4D Molecular Therapeutics Inc (FDMT)

4D Molecular Therapeutics experienced significant insider trading activity over the past ninety days, characterized by twenty-five sell transactions totaling approximately 9.5 million dollars. Executives, including David Kirn, divested shares following the latest results financiers. Despite this selling pressure, the stock price appreciated 46.1 percent during this period, reflecting strong market performance.
Ticker: FDMT Exchange: NSM


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Insider trades have triggered activity signals for 4D Molecular Therapeutics Inc. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
47.85
Quantity 71,205 +5.5%
Value US$1,693,907
David Kirn Officer Officer
Transaction date
Proposed sale
Price
35.77
Quantity 22,625
Value US$2,870,588
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
476.24
Quantity 43,081 +40.8%
Value US$1,466,037
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
16.42
Quantity 25,927 -3.0%
Value US$425,651
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
15.36
Quantity 43,149 -4.8%
Value US$662,622
David Kirn Officer Officer
Transaction date
Proposed sale
Price
16.76
Quantity 69,076
Value US$1,157,714
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
12.20
Quantity 1,635 -15.9%
Value US$19,947
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
12.19
Quantity 6,540
Value US$79,723
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
12.00
Quantity 1,635 -15.9%
Value US$19,620
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
11.87
Quantity 1,635
Value US$19,407
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
10.23
Quantity 26,842 -3.1%
Value US$274,596
David Kirn Officer Officer
Transaction date
Proposed sale
Price
10.26
Quantity 26,842
Value US$275,399
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
10.05
Quantity 12,415 -1.4%
Value US$124,722
David Kirn Officer Officer
Transaction date
Proposed sale
Price
10.09
Quantity 12,415
Value US$125,267
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
12.84
Quantity 442 -0.0%
Value US$5,673
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
12.01
Quantity 15,283 -1.7%
Value US$183,560
David Kirn Officer Officer
Transaction date
Proposed sale
Price
12.31
Quantity 15,725
Value US$193,575
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
12.87
Quantity 42,608 -4.5%
Value US$548,177
David Kirn Officer Officer
Transaction date
Proposed sale
Price
12.89
Quantity 42,608
Value US$549,217
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
14.00
Quantity 6,566 -43.2%
Value US$91,924
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
12.88
Quantity 6,566
Value US$84,570
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Sale
Price
12.00
Quantity 9,810 -53.2%
Value US$117,720
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
10.42
Quantity 9,810
Value US$102,220
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
10.47
Quantity 114,746 -10.9%
Value US$1,200,851
David Kirn Officer Officer
Transaction date
Proposed sale
Price
10.42
Quantity 114,746
Value US$1,195,653
David Kirn Officer Officer
Transaction date
Proposed sale
Price
10.42
Quantity 114,746
Value US$1,195,653
Kirn David See Remarks Executive Director
Transaction date
Planned sale
Price
10.02
Quantity 1,922 -0.2%
Value US$19,258
David Kirn Officer Officer
Transaction date
Proposed sale
Price
9.71
Quantity 1,922
Value US$18,663
2.1
Gupta Ashoo VP, Finance and Controller Officer
Transaction date
Sale
Price
8.61
Quantity 80 -0.2%
Value US$689
2.1
Gupta Ashoo VP, Finance and Controller Officer
Transaction date
Sale
Price
8.61
Quantity 310 -0.7%
Value US$2,669
2.1
Gupta Ashoo VP, Finance and Controller Officer
Transaction date
Sale
Price
8.68
Quantity 79 -0.2%
Value US$686
2.1
Gupta Ashoo VP, Finance and Controller Officer
Transaction date
Sale
Price
8.68
Quantity 310 -0.7%
Value US$2,691
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Sale
Price
10.90
Quantity 1,635 -31.3%
Value US$17,822
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
10.95
Quantity 1,635
Value US$17,903
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
10.59
Quantity 1,635 -31.3%
Value US$17,315
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
10.79
Quantity 1,635
Value US$17,642
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Sale
Price
12.00
Quantity 2,678 -42.7%
Value US$32,136
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
10.00
Quantity 1,816
Value US$18,160
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
10.17
Quantity 1,635 -24.0%
Value US$16,628
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
10.00
Quantity 2,408 -31.7%
Value US$24,080
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
8.00
Quantity 2,407 -24.1%
Value US$19,256
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
7.40
Quantity 7,312
Value US$54,109
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
16.33
Quantity 500 -6.9%
Value US$8,165
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
15.00
Quantity 500 -6.9%
Value US$7,500
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
27.11
Quantity 1,750 -20.5%
Value US$47,442
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
25.00
Quantity 1,996 -22.7%
Value US$49,900
Kirn David Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
22.49
Quantity 12,923 -1.2%
Value US$290,598
David Kirn Officer Officer
Transaction date
Proposed sale
Price
23.21
Quantity 12,923
Value US$299,943
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
21.36
Quantity 4,248 -71.0%
Value US$90,758
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
20.99
Quantity 9,498
Value US$199,363
Kirn David Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
23.10
Quantity 12,930 -1.2%
Value US$298,711
David Kirn Officer Officer
Transaction date
Proposed sale
Price
23.25
Quantity 12,930
Value US$300,622
David Kirn Officer Officer
Transaction date
Proposed sale
Price
23.25
Quantity 12,930
Value US$300,622
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
23.71
Quantity 1,750 -50.2%
Value US$41,494
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
25.75
Quantity 467 -21.2%
Value US$12,027
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
25.34
Quantity 1,283 -36.8%
Value US$32,514
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
25.74
Quantity 1,750 -50.2%
Value US$45,045
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
31.78
Quantity 8,153 -82.4%
Value US$259,102
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
31.86
Quantity 13,403
Value US$427,020
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
35.04
Quantity 5,833 -77.1%
Value US$204,410
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
31.27
Quantity 1,750 -50.2%
Value US$54,722
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
30.00
Quantity 1,909 -52.4%
Value US$57,270
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
27.67
Quantity 1,750 -50.2%
Value US$48,422
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
27.50
Quantity 1,996 -53.5%
Value US$54,890
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
27.50
Quantity 2,916 -62.7%
Value US$80,190
3.7
Bizily Scott Chief Legal Officer Officer
Transaction date
Planned sale
Price
27.50
Quantity 1,332 -43.4%
Value US$36,630
Kirn David Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
27.13
Quantity 92,001 -8.0%
Value US$2,495,822
David Kirn Officer Officer
Transaction date
Proposed sale
Price
26.90
Quantity 92,001
Value US$2,474,827
3.7
SCOTT BIZILY Officer Officer
Transaction date
Proposed sale
Price
28.24
Quantity 17,738
Value US$500,921
Kim Robert Young Chief Medical Officer Officer
Transaction date
Planned sale
Price
30.05
Quantity 552 -34.6%
Value US$16,588
Kim Robert Young Chief Medical Officer Officer
Transaction date
Planned sale
Price
30.05
Quantity 6,000 -79.0%
Value US$180,300
Kim Robert Young Chief Medical Officer Officer
Transaction date
Planned sale
Price
30.05
Quantity 6,000 -79.0%
Value US$180,300
Kim Robert Young Chief Medical Officer Officer
Transaction date
Planned sale
Price
30.05
Quantity 12,000 -88.3%
Value US$360,600
Kirn David Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
18.41
Quantity 5,696 -0.5%
Value US$104,851
David Kirn Officer Officer
Transaction date
Proposed sale
Price
18.46
Quantity 5,696
Value US$105,148
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-09-16 2026-09-14 PlS Planned sale

See Remarks

Executive Director
71,205 +5.5%
47.85
US$1,693,907
71,205 +5.5% 47.85 US$1,693,907
2026-09-14 2026-09-14 PrS Proposed sale

Officer

Officer
22,625
35.77
US$2,870,588
22,625 35.77 US$2,870,588
2026-09-03 2026-09-01 PlS Planned sale

Chief Legal Officer

Officer
43,081 +40.8%
476.24
US$1,466,037
43,081 +40.8% 476.24 US$1,466,037
2026-08-21 2026-08-19 PlS Planned sale

See Remarks

Executive Director
25,927 -3.0%
16.42
US$425,651
25,927 -3.0% 16.42 US$425,651
2026-08-21 2026-08-19 PlS Planned sale

See Remarks

Executive Director
43,149 -4.8%
15.36
US$662,622
43,149 -4.8% 15.36 US$662,622
2026-08-19 2026-08-19 PrS Proposed sale

Officer

Officer
69,076
16.76
US$1,157,714
69,076 16.76 US$1,157,714
2026-08-17 2026-08-17 PlS Planned sale

Chief Legal Officer

Officer
1,635 -15.9%
12.20
US$19,947
1,635 -15.9% 12.20 US$19,947
2026-08-17 2026-08-17 PrS Proposed sale

Officer

Officer
6,540
12.19
US$79,723
6,540 12.19 US$79,723
2026-08-17 2026-08-13 PlS Planned sale

Chief Legal Officer

Officer
1,635 -15.9%
12.00
US$19,620
1,635 -15.9% 12.00 US$19,620
2026-08-13 2026-08-13 PrS Proposed sale

Officer

Officer
1,635
11.87
US$19,407
1,635 11.87 US$19,407
2026-08-05 2026-08-04 PlS Planned sale

See Remarks

Executive Director
26,842 -3.1%
10.23
US$274,596
26,842 -3.1% 10.23 US$274,596
2026-08-04 2026-08-04 PrS Proposed sale

Officer

Officer
26,842
10.26
US$275,399
26,842 10.26 US$275,399
2026-08-04 2026-08-03 PlS Planned sale

See Remarks

Executive Director
12,415 -1.4%
10.05
US$124,722
12,415 -1.4% 10.05 US$124,722
2026-08-03 2026-08-03 PrS Proposed sale

Officer

Officer
12,415
10.09
US$125,267
12,415 10.09 US$125,267
2026-07-14 2026-07-10 PlS Planned sale

See Remarks

Executive Director
442 -0.0%
12.84
US$5,673
442 -0.0% 12.84 US$5,673
2026-07-14 2026-07-10 PlS Planned sale

See Remarks

Executive Director
15,283 -1.7%
12.01
US$183,560
15,283 -1.7% 12.01 US$183,560
2026-07-10 2026-07-10 PrS Proposed sale

Officer

Officer
15,725
12.31
US$193,575
15,725 12.31 US$193,575
2026-07-14 2026-07-09 PlS Planned sale

See Remarks

Executive Director
42,608 -4.5%
12.87
US$548,177
42,608 -4.5% 12.87 US$548,177
2026-07-09 2026-07-09 PrS Proposed sale

Officer

Officer
42,608
12.89
US$549,217
42,608 12.89 US$549,217
2026-07-02 2026-06-30 PlS Planned sale

Chief Legal Officer

Officer
6,566 -43.2%
14.00
US$91,924
6,566 -43.2% 14.00 US$91,924
2026-06-30 2026-06-30 PrS Proposed sale

Officer

Officer
6,566
12.88
US$84,570
6,566 12.88 US$84,570
2026-06-25 2026-06-23 S Sale

Chief Legal Officer

Officer
9,810 -53.2%
12.00
US$117,720
9,810 -53.2% 12.00 US$117,720
2026-06-23 2026-06-23 PrS Proposed sale

Officer

Officer
9,810
10.42
US$102,220
9,810 10.42 US$102,220
2026-06-23 2026-06-22 PlS Planned sale

See Remarks

Executive Director
114,746 -10.9%
10.47
US$1,200,851
114,746 -10.9% 10.47 US$1,200,851
2026-06-22 2026-06-22 PrS Proposed sale

Officer

Officer
114,746
10.42
US$1,195,653
114,746 10.42 US$1,195,653
2026-06-22 2026-06-22 PrS Proposed sale

Officer

Officer
114,746
10.42
US$1,195,653
114,746 10.42 US$1,195,653
2026-06-02 2026-06-01 PlS Planned sale

See Remarks

Executive Director
1,922 -0.2%
10.02
US$19,258
1,922 -0.2% 10.02 US$19,258
2026-06-01 2026-06-01 PrS Proposed sale

Officer

Officer
1,922
9.71
US$18,663
1,922 9.71 US$18,663
2026-03-24 2026-03-20 S Sale

VP, Finance and Controller

Officer
80 -0.2%
8.61
US$689
80 -0.2% 8.61 US$689
2026-03-24 2026-03-20 S Sale

VP, Finance and Controller

Officer
310 -0.7%
8.61
US$2,669
310 -0.7% 8.61 US$2,669
2025-12-23 2025-12-20 S Sale

VP, Finance and Controller

Officer
79 -0.2%
8.68
US$686
79 -0.2% 8.68 US$686
2025-12-23 2025-12-20 S Sale

VP, Finance and Controller

Officer
310 -0.7%
8.68
US$2,691
310 -0.7% 8.68 US$2,691
2025-12-19 2025-12-16 S Sale

Chief Legal Officer

Officer
1,635 -31.3%
10.90
US$17,822
1,635 -31.3% 10.90 US$17,822
2025-12-16 2025-12-16 PrS Proposed sale

Officer

Officer
1,635
10.95
US$17,903
1,635 10.95 US$17,903
2025-11-19 2025-11-17 PlS Planned sale

Chief Legal Officer

Officer
1,635 -31.3%
10.59
US$17,315
1,635 -31.3% 10.59 US$17,315
2025-11-17 2025-11-17 PrS Proposed sale

Officer

Officer
1,635
10.79
US$17,642
1,635 10.79 US$17,642
2025-10-27 2025-10-24 S Sale

Chief Legal Officer

Officer
2,678 -42.7%
12.00
US$32,136
2,678 -42.7% 12.00 US$32,136
2025-10-24 2025-10-24 PrS Proposed sale

Officer

Officer
1,816
10.00
US$18,160
1,816 10.00 US$18,160
2025-10-20 2025-10-16 PlS Planned sale

Chief Legal Officer

Officer
1,635 -24.0%
10.17
US$16,628
1,635 -24.0% 10.17 US$16,628
2025-10-14 2025-10-09 PlS Planned sale

Chief Legal Officer

Officer
2,408 -31.7%
10.00
US$24,080
2,408 -31.7% 10.00 US$24,080
2025-09-26 2025-09-23 PlS Planned sale

Chief Legal Officer

Officer
2,407 -24.1%
8.00
US$19,256
2,407 -24.1% 8.00 US$19,256
2025-09-23 2025-09-23 PrS Proposed sale

Officer

Officer
7,312
7.40
US$54,109
7,312 7.40 US$54,109
2024-09-18 2024-09-16 PlS Planned sale

Chief Legal Officer

Officer
500 -6.9%
16.33
US$8,165
500 -6.9% 16.33 US$8,165
2024-08-21 2024-08-19 PlS Planned sale

Chief Legal Officer

Officer
500 -6.9%
15.00
US$7,500
500 -6.9% 15.00 US$7,500
2024-07-18 2024-07-16 PlS Planned sale

Chief Legal Officer

Officer
1,750 -20.5%
27.11
US$47,442
1,750 -20.5% 27.11 US$47,442
2024-07-15 2024-07-11 PlS Planned sale

Chief Legal Officer

Officer
1,996 -22.7%
25.00
US$49,900
1,996 -22.7% 25.00 US$49,900
2024-07-12 2024-07-10 PlS Planned sale

Chief Executive Officer

Executive Director
12,923 -1.2%
22.49
US$290,598
12,923 -1.2% 22.49 US$290,598
2024-07-10 2024-07-10 PrS Proposed sale

Officer

Officer
12,923
23.21
US$299,943
12,923 23.21 US$299,943
2024-07-03 2024-07-01 PlS Planned sale

Chief Legal Officer

Officer
4,248 -71.0%
21.36
US$90,758
4,248 -71.0% 21.36 US$90,758
2024-07-01 2024-07-01 PrS Proposed sale

Officer

Officer
9,498
20.99
US$199,363
9,498 20.99 US$199,363
2024-06-26 2024-06-24 PlS Planned sale

Chief Executive Officer

Executive Director
12,930 -1.2%
23.10
US$298,711
12,930 -1.2% 23.10 US$298,711
2024-06-25 2024-06-24 PrS Proposed sale

Officer

Officer
12,930
23.25
US$300,622
12,930 23.25 US$300,622
2024-06-24 2024-06-24 PrS Proposed sale

Officer

Officer
12,930
23.25
US$300,622
12,930 23.25 US$300,622
2024-06-20 2024-06-17 PlS Planned sale

Chief Legal Officer

Officer
1,750 -50.2%
23.71
US$41,494
1,750 -50.2% 23.71 US$41,494
2024-05-20 2024-05-16 PlS Planned sale

Chief Legal Officer

Officer
467 -21.2%
25.75
US$12,027
467 -21.2% 25.75 US$12,027
2024-05-20 2024-05-16 PlS Planned sale

Chief Legal Officer

Officer
1,283 -36.8%
25.34
US$32,514
1,283 -36.8% 25.34 US$32,514
2024-04-18 2024-04-16 PlS Planned sale

Chief Legal Officer

Officer
1,750 -50.2%
25.74
US$45,045
1,750 -50.2% 25.74 US$45,045
2024-04-03 2024-04-01 PlS Planned sale

Chief Legal Officer

Officer
8,153 -82.4%
31.78
US$259,102
8,153 -82.4% 31.78 US$259,102
2024-04-01 2024-04-01 PrS Proposed sale

Officer

Officer
13,403
31.86
US$427,020
13,403 31.86 US$427,020
2024-03-29 2024-03-27 PlS Planned sale

Chief Legal Officer

Officer
5,833 -77.1%
35.04
US$204,410
5,833 -77.1% 35.04 US$204,410
2024-03-20 2024-03-18 PlS Planned sale

Chief Legal Officer

Officer
1,750 -50.2%
31.27
US$54,722
1,750 -50.2% 31.27 US$54,722
2024-02-29 2024-02-27 PlS Planned sale

Chief Legal Officer

Officer
1,909 -52.4%
30.00
US$57,270
1,909 -52.4% 30.00 US$57,270
2024-02-21 2024-02-16 PlS Planned sale

Chief Legal Officer

Officer
1,750 -50.2%
27.67
US$48,422
1,750 -50.2% 27.67 US$48,422
2024-02-12 2024-02-08 PlS Planned sale

Chief Legal Officer

Officer
1,996 -53.5%
27.50
US$54,890
1,996 -53.5% 27.50 US$54,890
2024-02-12 2024-02-08 PlS Planned sale

Chief Legal Officer

Officer
2,916 -62.7%
27.50
US$80,190
2,916 -62.7% 27.50 US$80,190
2024-02-12 2024-02-08 PlS Planned sale

Chief Legal Officer

Officer
1,332 -43.4%
27.50
US$36,630
1,332 -43.4% 27.50 US$36,630
2024-02-12 2024-02-08 PlS Planned sale

Chief Executive Officer

Executive Director
92,001 -8.0%
27.13
US$2,495,822
92,001 -8.0% 27.13 US$2,495,822
2024-02-08 2024-02-08 PrS Proposed sale

Officer

Officer
92,001
26.90
US$2,474,827
92,001 26.90 US$2,474,827
2024-02-08 2024-02-08 PrS Proposed sale

Officer

Officer
17,738
28.24
US$500,921
17,738 28.24 US$500,921
2024-02-07 2024-02-05 PlS Planned sale

Chief Medical Officer

Officer
552 -34.6%
30.05
US$16,588
552 -34.6% 30.05 US$16,588
2024-02-07 2024-02-05 PlS Planned sale

Chief Medical Officer

Officer
6,000 -79.0%
30.05
US$180,300
6,000 -79.0% 30.05 US$180,300
2024-02-07 2024-02-05 PlS Planned sale

Chief Medical Officer

Officer
6,000 -79.0%
30.05
US$180,300
6,000 -79.0% 30.05 US$180,300
2024-02-07 2024-02-05 PlS Planned sale

Chief Medical Officer

Officer
12,000 -88.3%
30.05
US$360,600
12,000 -88.3% 30.05 US$360,600
2024-01-25 2024-01-23 PlS Planned sale

Chief Executive Officer

Executive Director
5,696 -0.5%
18.41
US$104,851
5,696 -0.5% 18.41 US$104,851
2024-01-23 2024-01-23 PrS Proposed sale

Officer

Officer
5,696
18.46
US$105,148
5,696 18.46 US$105,148