Crescent Biopharma, Inc. (CBIO)

Crescent Biopharma experienced thirteen insider trading transactions over the past ninety days, totaling over 564,000 dollars in sales. Key executives, including the CEO and CFO, executed planned divestments. These activities follow a recent earnings report that exceeded expectations, while the stock price has declined nearly eighteen percent during this period.
Ticker: CBIO Exchange: NAS


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Crescent Biopharma, 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
2.3
Brumm Joshua T Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
289.07
Quantity 43,522 +13.5%
Value US$2,104,439
1.4
McNeill Jonathan President and COO Officer
Transaction date
Planned sale
Price
385.02
Quantity 61,391 -25.0%
Value US$2,649,660
2.3
Joshua T Brumm Officer; Director Executive Director
Transaction date
Proposed sale
Price
469.88
Quantity 21,939
Value US$520,716
1.4
Jonathan McNeill Officer Officer
Transaction date
Proposed sale
Price
17.18
Quantity 4,415
Value US$75,850
Im Ellie Eunkyung Chief Medical Officer Officer
Transaction date
Planned sale
Price
17.90
Quantity 623 -2.8%
Value US$11,152
Lynch Ryan See Remarks Officer
Transaction date
Planned sale
Price
17.90
Quantity 240 -1.7%
Value US$4,296
Pinkas Jan Chief Scientific Officer Officer
Transaction date
Planned sale
Price
17.90
Quantity 658 -3.0%
Value US$11,778
Bispham Barbara Harlin See Remarks Officer
Transaction date
Planned sale
Price
17.90
Quantity 620 -3.2%
Value US$11,098
2.3
Brumm Joshua T Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
17.90
Quantity 1,610 -0.6%
Value US$28,819
1.4
McNeill Jonathan President and COO Officer
Transaction date
Planned sale
Price
17.90
Quantity 731 -0.5%
Value US$13,085
3.0
Scalzo Richard William Chief Financial Officer Officer
Transaction date
Planned sale
Price
17.90
Quantity 568 -2.8%
Value US$10,167
2.3
Joshua T Brumm Officer; Director Executive Director
Transaction date
Proposed sale
Price
18.80
Quantity 1,771
Value US$33,295
1.4
Jonathan McNeill Officer Officer
Transaction date
Proposed sale
Price
18.80
Quantity 804
Value US$15,115
3.3
Fairmount Funds Management LLC Non-Executive Director Large shareholder
Transaction date
Purchase
Price
14.50
Quantity 853,450 +31.1%
Value US$12,375,025
3.0
Scalzo Richard William Chief Financial Officer Officer
Transaction date
Planned sale
Price
17.99
Quantity 1,112 -5.2%
Value US$20,005
Pinkas Jan Chief Scientific Officer Officer
Transaction date
Planned sale
Price
17.99
Quantity 1,288 -5.5%
Value US$23,171
Lynch Ryan See Remarks Officer
Transaction date
Planned sale
Price
17.99
Quantity 465 -3.2%
Value US$8,365
Bispham Barbara Harlin See Remarks Officer
Transaction date
Planned sale
Price
17.99
Quantity 1,218 -5.9%
Value US$21,912
Im Ellie Eunkyung Chief Medical Officer Officer
Transaction date
Planned sale
Price
17.99
Quantity 1,219 -5.2%
Value US$21,930
2.3
Brumm Joshua T Chief Executive Officer Executive Director
Transaction date
Planned sale
Price
17.99
Quantity 42,305 -13.1%
Value US$761,067
1.4
McNeill Jonathan President and COO Officer
Transaction date
Planned sale
Price
17.99
Quantity 20,549 -12.9%
Value US$369,677
3.3
Fairmount Funds Management LLC Non-Executive Director Large shareholder
Transaction date
Purchase
Price
13.41
Quantity 1,360,000 +98.0%
Value US$18,237,600
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
0.27
Quantity 115,000 +20.3%
Value US$30,716
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
0.25
Quantity 190,000 +50.6%
Value US$48,108
3.4
Hahn Brian M. SVP Finance, CFO Officer
Transaction date
Purchase
Price
0.25
Quantity 17,500 +32.9%
Value US$4,335
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
1.38
Quantity 30,403 +8.8%
Value US$41,956
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
1.38
Quantity 35,000 +11.3%
Value US$48,300
3.4
Hahn Brian M. SVP Finance, CFO Officer
Transaction date
Sale
Price
1.95
Quantity 3,700 -6.5%
Value US$7,215
3.4
Hahn Brian M. Officer Officer
Transaction date
Proposed sale
Price
1.96
Quantity 4,313
Value US$8,453
2.6
JUNIUS DANIEL M Non-Executive Director
Transaction date
Purchase
Price
1.56
Quantity 30,000 +47.4%
Value US$46,800
2.4
Johnson Bruce S SVP & Chief Commercial Officer Officer
Transaction date
Purchase
Price
1.57
Quantity 13,500 +10.8%
Value US$21,195
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.12
Quantity 1,351,092 -37.7%
Value US$4,213,786
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.12
Quantity 1,648,908 -37.7%
Value US$5,142,614
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.26
Quantity 293,645 -7.6%
Value US$958,428
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.26
Quantity 358,371 -7.6%
Value US$1,169,687
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.76
Quantity 32,139 -0.8%
Value US$88,659
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.76
Quantity 39,223 -0.8%
Value US$108,201
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.91
Quantity 45,930 -1.2%
Value US$133,643
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.91
Quantity 56,054 -1.2%
Value US$163,100
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.99
Quantity 78,730 -1.9%
Value US$235,411
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
2.99
Quantity 96,084 -1.9%
Value US$287,301
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.02
Quantity 54,645 -1.3%
Value US$165,028
2.4
SANDELL SCOTT D Large shareholder
Transaction date
Sale
Price
3.02
Quantity 66,690 -1.3%
Value US$201,404
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
2.25
Quantity 110,000 +55.0%
Value US$247,500
2.6
JUNIUS DANIEL M Non-Executive Director
Transaction date
Purchase
Price
1.87
Quantity 20,000 +46.2%
Value US$37,400
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
1.66
Quantity 100,000 +100.0%
Value US$166,000
3.5
Rock Edwin Chief Medical Officer Officer
Transaction date
Purchase
Price
1.43
Quantity 100,000 New position
Value US$143,000
3.3
PEARSON TIMOTHY R Non-Executive Director
Transaction date
Purchase
Price
1.29
Quantity 19,400 +369.5%
Value US$25,026
3.3
Semerjian Harout Chief Executive Officer Executive Director
Transaction date
Purchase
Price
1.29
Quantity 25,000 New position
Value US$32,250
3.4
Hahn Brian M. SVP Finance, CFO Officer
Transaction date
Purchase
Price
1.06
Quantity 20,000 +54.3%
Value US$21,200
3.8
Girard Armand SVP, Chief Business Officer Officer
Transaction date
Purchase
Price
1.05
Quantity 6,500 +28.7%
Value US$6,825
3.8
Magnani John L. SVP of Research, CSO Officer
Transaction date
Purchase
Price
1.17
Quantity 45,045 +14.0%
Value US$52,703
3.4
Hahn Brian M. SVP Finance, CFO Officer
Transaction date
Sale
Price
1.09
Quantity 2,917 -7.3%
Value US$3,180
3.8
Magnani John L. SVP of Research, CSO Officer
Transaction date
Sale
Price
1.09
Quantity 3,227 -1.0%
Value US$3,517
3.8
Girard Armand SVP, Chief Business Officer Officer
Transaction date
Sale
Price
1.09
Quantity 2,339 -9.4%
Value US$2,550
0.5
Andrews Patricia S Non-Executive Director
Transaction date
Purchase
Price
2.05
Quantity 40,000 +761.9%
Value US$82,000
2.3
King Rachel K. President, CEO Executive Director
Transaction date
Planned sale
Price
3.91
Quantity 84,176 -19.1%
Value US$329,128
4.0
BVF PARTNERS L P/IL Large shareholder
Transaction date
Purchase
Price
2.60
Quantity 86,090 +15.8%
Value US$223,834
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-09-18 2026-09-18 PlS Planned sale

Chief Executive Officer

Executive Director
43,522 +13.5%
289.07
US$2,104,439
43,522 +13.5% 289.07 US$2,104,439
2026-09-18 2026-09-18 PlS Planned sale

President and COO

Officer
61,391 -25.0%
385.02
US$2,649,660
61,391 -25.0% 385.02 US$2,649,660
2026-09-17 2026-09-18 PrS Proposed sale

Officer; Director

Executive Director
21,939
469.88
US$520,716
21,939 469.88 US$520,716
2026-09-17 2026-09-18 PrS Proposed sale

Officer

Officer
4,415
17.18
US$75,850
4,415 17.18 US$75,850
2026-09-18 2026-09-16 PlS Planned sale

Chief Medical Officer

Officer
623 -2.8%
17.90
US$11,152
623 -2.8% 17.90 US$11,152
2026-09-18 2026-09-16 PlS Planned sale

See Remarks

Officer
240 -1.7%
17.90
US$4,296
240 -1.7% 17.90 US$4,296
2026-09-18 2026-09-16 PlS Planned sale

Chief Scientific Officer

Officer
658 -3.0%
17.90
US$11,778
658 -3.0% 17.90 US$11,778
2026-09-18 2026-09-16 PlS Planned sale

See Remarks

Officer
620 -3.2%
17.90
US$11,098
620 -3.2% 17.90 US$11,098
2026-09-18 2026-09-16 PlS Planned sale

Chief Executive Officer

Executive Director
1,610 -0.6%
17.90
US$28,819
1,610 -0.6% 17.90 US$28,819
2026-09-18 2026-09-16 PlS Planned sale

President and COO

Officer
731 -0.5%
17.90
US$13,085
731 -0.5% 17.90 US$13,085
2026-09-18 2026-09-16 PlS Planned sale

Chief Financial Officer

Officer
568 -2.8%
17.90
US$10,167
568 -2.8% 17.90 US$10,167
2026-09-16 2026-09-16 PrS Proposed sale

Officer; Director

Executive Director
1,771
18.80
US$33,295
1,771 18.80 US$33,295
2026-09-16 2026-09-16 PrS Proposed sale

Officer

Officer
804
18.80
US$15,115
804 18.80 US$15,115
2026-07-20 2026-07-16 B Purchase Non-Executive Director Large shareholder
853,450 +31.1%
14.50
US$12,375,025
853,450 +31.1% 14.50 US$12,375,025
2026-06-23 2026-06-22 PlS Planned sale

Chief Financial Officer

Officer
1,112 -5.2%
17.99
US$20,005
1,112 -5.2% 17.99 US$20,005
2026-06-23 2026-06-22 PlS Planned sale

Chief Scientific Officer

Officer
1,288 -5.5%
17.99
US$23,171
1,288 -5.5% 17.99 US$23,171
2026-06-23 2026-06-22 PlS Planned sale

See Remarks

Officer
465 -3.2%
17.99
US$8,365
465 -3.2% 17.99 US$8,365
2026-06-23 2026-06-22 PlS Planned sale

See Remarks

Officer
1,218 -5.9%
17.99
US$21,912
1,218 -5.9% 17.99 US$21,912
2026-06-23 2026-06-22 PlS Planned sale

Chief Medical Officer

Officer
1,219 -5.2%
17.99
US$21,930
1,219 -5.2% 17.99 US$21,930
2026-06-23 2026-06-22 PlS Planned sale

Chief Executive Officer

Executive Director
42,305 -13.1%
17.99
US$761,067
42,305 -13.1% 17.99 US$761,067
2026-06-23 2026-06-22 PlS Planned sale

President and COO

Officer
20,549 -12.9%
17.99
US$369,677
20,549 -12.9% 17.99 US$369,677
2025-12-08 2025-12-04 B Purchase Non-Executive Director Large shareholder
1,360,000 +98.0%
13.41
US$18,237,600
1,360,000 +98.0% 13.41 US$18,237,600
2024-08-09 2024-08-08 S Sale Large shareholder
260,873 -4.0%
0.19
US$50,009
260,873 -4.0% 0.19 US$50,009
2024-08-09 2024-08-07 S Sale Large shareholder
61,488 -0.9%
0.18
US$11,197
61,488 -0.9% 0.18 US$11,197
2024-08-07 2024-08-06 S Sale Large shareholder
55,732 -0.8%
0.18
US$10,188
55,732 -0.8% 0.18 US$10,188
2024-08-07 2024-08-05 S Sale Large shareholder
164,523 -2.4%
0.19
US$30,996
164,523 -2.4% 0.19 US$30,996
2024-08-05 2024-08-02 S Sale Large shareholder
286,200 -4.0%
0.20
US$57,354
286,200 -4.0% 0.20 US$57,354
2024-08-05 2024-08-01 S Sale Large shareholder
63,564 -0.9%
0.22
US$13,743
63,564 -0.9% 0.22 US$13,743
2024-07-30 2024-07-30 S Sale Large shareholder
756,835 -9.5%
0.22
US$167,185
756,835 -9.5% 0.22 US$167,185
2024-07-30 2024-07-29 S Sale Large shareholder
363,949 -4.4%
0.24
US$85,637
363,949 -4.4% 0.24 US$85,637
2024-07-30 2024-07-26 S Sale Large shareholder
258,335 -3.0%
0.24
US$62,440
258,335 -3.0% 0.24 US$62,440
2024-06-24 2024-06-21 B Purchase

Chief Medical Officer

Officer
115,000 +20.3%
0.27
US$30,716
115,000 +20.3% 0.27 US$30,716
2024-06-24 2024-06-20 B Purchase

Chief Medical Officer

Officer
190,000 +50.6%
0.25
US$48,108
190,000 +50.6% 0.25 US$48,108
2024-06-20 2024-06-18 B Purchase

SVP Finance, CFO

Officer
17,500 +32.9%
0.25
US$4,335
17,500 +32.9% 0.25 US$4,335
2023-09-25 2023-09-22 B Purchase

Chief Medical Officer

Officer
30,403 +8.8%
1.38
US$41,956
30,403 +8.8% 1.38 US$41,956
2023-09-25 2023-09-21 B Purchase

Chief Medical Officer

Officer
35,000 +11.3%
1.38
US$48,300
35,000 +11.3% 1.38 US$48,300
2023-05-18 2023-05-17 S Sale

SVP Finance, CFO

Officer
3,700 -6.5%
1.95
US$7,215
3,700 -6.5% 1.95 US$7,215
2023-05-17 2023-05-17 PrS Proposed sale

Officer

Officer
4,313
1.96
US$8,453
4,313 1.96 US$8,453
2023-05-11 2023-05-10 B Purchase Non-Executive Director
30,000 +47.4%
1.56
US$46,800
30,000 +47.4% 1.56 US$46,800
2023-05-09 2023-05-08 B Purchase

SVP & Chief Commercial Officer

Officer
13,500 +10.8%
1.57
US$21,195
13,500 +10.8% 1.57 US$21,195
2023-02-28 2023-02-24 B Purchase Large shareholder
100,000 +1.2%
1.70
US$170,000
100,000 +1.2% 1.70 US$170,000
2023-02-23 2023-02-23 B Purchase Large shareholder
200,000 +2.4%
1.75
US$350,760
200,000 +2.4% 1.75 US$350,760
2023-02-23 2023-02-22 B Purchase Large shareholder
150,000 +1.8%
1.79
US$268,995
150,000 +1.8% 1.79 US$268,995
2023-02-23 2023-02-21 B Purchase Large shareholder
50,000 +0.6%
1.85
US$92,500
50,000 +0.6% 1.85 US$92,500
2023-02-17 2023-02-17 B Purchase Large shareholder
200,000 +2.5%
1.71
US$341,000
200,000 +2.5% 1.71 US$341,000
2023-02-17 2023-02-16 B Purchase Large shareholder
315,266 +4.2%
1.68
US$531,129
315,266 +4.2% 1.68 US$531,129
2023-02-17 2023-02-15 B Purchase Large shareholder
1,000,000 +15.2%
2.16
US$2,155,800
1,000,000 +15.2% 2.16 US$2,155,800
2023-02-13 2023-02-09 B Purchase Large shareholder
11,451 +0.2%
3.24
US$37,123
11,451 +0.2% 3.24 US$37,123
2023-01-27 2023-01-26 S Sale Large shareholder
1,351,092 -37.7%
3.12
US$4,213,786
1,351,092 -37.7% 3.12 US$4,213,786
2023-01-27 2023-01-26 S Sale Large shareholder
1,648,908 -37.7%
3.12
US$5,142,614
1,648,908 -37.7% 3.12 US$5,142,614
2023-01-27 2023-01-25 S Sale Large shareholder
293,645 -7.6%
3.26
US$958,428
293,645 -7.6% 3.26 US$958,428
2023-01-27 2023-01-25 S Sale Large shareholder
358,371 -7.6%
3.26
US$1,169,687
358,371 -7.6% 3.26 US$1,169,687
2023-01-06 2023-01-05 S Sale Large shareholder
32,139 -0.8%
2.76
US$88,659
32,139 -0.8% 2.76 US$88,659
2023-01-06 2023-01-05 S Sale Large shareholder
39,223 -0.8%
2.76
US$108,201
39,223 -0.8% 2.76 US$108,201
2023-01-04 2023-01-04 S Sale Large shareholder
45,930 -1.2%
2.91
US$133,643
45,930 -1.2% 2.91 US$133,643
2023-01-04 2023-01-04 S Sale Large shareholder
56,054 -1.2%
2.91
US$163,100
56,054 -1.2% 2.91 US$163,100
2023-01-04 2023-01-03 S Sale Large shareholder
78,730 -1.9%
2.99
US$235,411
78,730 -1.9% 2.99 US$235,411
2023-01-04 2023-01-03 S Sale Large shareholder
96,084 -1.9%
2.99
US$287,301
96,084 -1.9% 2.99 US$287,301
2023-01-04 2022-12-30 S Sale Large shareholder
54,645 -1.3%
3.02
US$165,028
54,645 -1.3% 3.02 US$165,028
2023-01-04 2022-12-30 S Sale Large shareholder
66,690 -1.3%
3.02
US$201,404
66,690 -1.3% 3.02 US$201,404
2022-12-27 2022-12-22 B Purchase

Chief Medical Officer

Officer
110,000 +55.0%
2.25
US$247,500
110,000 +55.0% 2.25 US$247,500
2022-11-18 2022-11-17 B Purchase Non-Executive Director
20,000 +46.2%
1.87
US$37,400
20,000 +46.2% 1.87 US$37,400
2022-11-16 2022-11-15 B Purchase

Chief Medical Officer

Officer
100,000 +100.0%
1.66
US$166,000
100,000 +100.0% 1.66 US$166,000
2022-11-16 2022-11-14 B Purchase

Chief Medical Officer

Officer
100,000 New position
1.43
US$143,000
100,000 New position 1.43 US$143,000
2022-11-14 2022-11-11 B Purchase Non-Executive Director
19,400 +369.5%
1.29
US$25,026
19,400 +369.5% 1.29 US$25,026
2022-11-14 2022-11-11 B Purchase

Chief Executive Officer

Executive Director
25,000 New position
1.29
US$32,250
25,000 New position 1.29 US$32,250
2022-11-14 2022-11-11 B Purchase

SVP Finance, CFO

Officer
20,000 +54.3%
1.06
US$21,200
20,000 +54.3% 1.06 US$21,200
2022-11-14 2022-11-11 B Purchase

SVP, Chief Business Officer

Officer
6,500 +28.7%
1.05
US$6,825
6,500 +28.7% 1.05 US$6,825
2022-11-14 2022-11-11 B Purchase

SVP of Research, CSO

Officer
45,045 +14.0%
1.17
US$52,703
45,045 +14.0% 1.17 US$52,703
2022-03-10 2022-03-09 S Sale

SVP Finance, CFO

Officer
2,917 -7.3%
1.09
US$3,180
2,917 -7.3% 1.09 US$3,180
2022-03-10 2022-03-09 S Sale

SVP of Research, CSO

Officer
3,227 -1.0%
1.09
US$3,517
3,227 -1.0% 1.09 US$3,517
2022-03-10 2022-03-09 S Sale

SVP, Chief Business Officer

Officer
2,339 -9.4%
1.09
US$2,550
2,339 -9.4% 1.09 US$2,550
2021-11-18 2021-11-16 B Purchase Non-Executive Director
40,000 +761.9%
2.05
US$82,000
40,000 +761.9% 2.05 US$82,000
2020-12-30 2020-12-28 PlS Planned sale

President, CEO

Executive Director
84,176 -19.1%
3.91
US$329,128
84,176 -19.1% 3.91 US$329,128
2020-11-06 2020-11-04 B Purchase Large shareholder
86,090 +15.8%
2.60
US$223,834
86,090 +15.8% 2.60 US$223,834

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