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Beta Bionics, Inc.

BBNX Net buying
CIK 0001674632 #2672 in the set updated 22 Sep 2026
Bought (120 mo)
$17.57M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$6.13M
$2.16M on a plan · $2.20M straight out of an exercise
Sold at will
$1.77M
39 of 80 sales
Net
+$11.44M
+$15.79M against sales at will

By person

12 insiders · 82 transactions
12.5×

Sean Saint holds 12.5 times base salary in stock. $8.77M of shares against $700.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Sean Saint last reported holding, valued at $22.00, the price Common Stock was last bought or sold at on the open market here, on 16 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Wellington Hadley Harbor Aggregator IV, L.P.
10% owner
$17.00M (1)
—
+$17.00M
3,901,599
8.67%
$85.84M
—
Hopman Mark
Chief Commercial Officer
—
$2.28M (18) scheduled
−$2.28M
56,479
0.1255%
$1.24M
+6,347%
Feider Stephen
Chief Financial Officer
—
$1.89M (19) scheduled
−$1.89M
159,378
0.3543%
$3.51M
+130,538%
Saint Sean
President & CEO
—
$911.23K (9)
−$911.23K
398,429
0.8856%
$8.77M
—
Russell Steven Jon
Chief Medical Officer
—
$214.39K (8)
−$214.39K
169,628
0.3770%
$3.73M
+345.6%
Lezack Adam
Director
—
$100.46K (6) scheduled
−$100.46K
27,399
0.0609%
$602.78K
—
Jones Christy
Director
—
$80.32K (3) scheduled
−$80.32K
25,994
0.0578%
$571.87K
—
Palasis Maria
Director
—
$79.39K (4) scheduled
−$79.39K
29,397
0.0653%
$646.73K
—
Mensinger Mike
Chief Product Officer
$566.95K (1)
$579.33K (13) scheduled
−$12.38K
177,390
0.3943%
$3.90M
—
MICHEL GERARD J
Director
—
—
—
33,509
0.0745%
$737.20K
—
Dearen Danny L.
Director
—
—
—
32,209
0.0716%
$708.60K
—
CARNEY SEAN
Director
—
—
—
32,209
0.0716%
$708.60K
—

Individual transactions

82
Insider
Date
Role
Action
Shares
Price
Amount
Mensinger Mike
16 Sep 2026
Chief Product Officer
Sold on a plan
2,650
$22.00
$58.30K
Hopman Mark
16 Sep 2026
Chief Commercial Officer
Sold on a plan
30,779
$20.13
$619.64K
Hopman Mark
14 Sep 2026
Chief Commercial Officer
Sold on a plan
775
$15.52
$12.03K
Hopman Mark
9 Sep 2026
Chief Commercial Officer
Sold on a plan
36,870
$18.46
$680.72K
Saint Sean
3 Sep 2026
President & CEO
Sold on a plan
5,641
$20.08
$113.26K
Saint Sean
2 Sep 2026
President & CEO
Sell
16,867
$19.11
$322.38K
Feider Stephen
2 Sep 2026
Chief Financial Officer
Sell
6,675
$19.11
$127.58K
Mensinger Mike
2 Sep 2026
Chief Product Officer
Sell
4,375
$19.11
$83.62K
Russell Steven Jon
2 Sep 2026
Chief Medical Officer
Sell
4,221
$19.11
$80.68K
Hopman Mark
2 Sep 2026
Chief Commercial Officer
Sell
5,327
$19.11
$101.82K
Feider Stephen
29 Jun 2026
Chief Financial Officer
Sold after exercise
4,896
$17.03
$83.38K
Feider Stephen
26 Jun 2026
Chief Financial Officer
Sold after exercise
5,104
$17.05
$87.01K
Jones Christy
24 Jun 2026
Director
Sold on a plan
1,406
$15.00
$21.09K
Hopman Mark
24 Jun 2026
Chief Commercial Officer
Sold on a plan
1,258
$15.01
$18.88K
Jones Christy
4 Jun 2026
Director
Sold on a plan
2,811
$14.00
$39.35K
Hopman Mark
4 Jun 2026
Chief Commercial Officer
Sold on a plan
275
$12.31
$3.39K
Saint Sean
2 Jun 2026
President & CEO
Sell
16,872
$12.61
$212.71K
Feider Stephen
2 Jun 2026
Chief Financial Officer
Sell
6,676
$12.61
$84.16K
Russell Steven Jon
2 Jun 2026
Chief Medical Officer
Sell
4,222
$12.61
$53.23K
Hopman Mark
2 Jun 2026
Chief Commercial Officer
Sell
5,329
$12.61
$67.18K
Mensinger Mike
2 Jun 2026
Chief Product Officer
Sell
4,378
$12.61
$55.19K
Lezack Adam
22 May 2026
Director
Sold on a plan
998
$11.21
$11.19K
Lezack Adam
21 May 2026
Director
Sold on a plan
1,000
$9.95
$9.95K
Jones Christy
21 May 2026
Director
Sold on a plan
1,998
$9.95
$19.88K
Hopman Mark
4 Mar 2026
Chief Commercial Officer
Sold on a plan
353
$11.57
$4.08K
Saint Sean
2 Mar 2026
President & CEO
Sell
3,384
$12.36
$41.83K
Feider Stephen
2 Mar 2026
Chief Financial Officer
Sell
1,428
$12.36
$17.65K
Mensinger Mike
2 Mar 2026
Chief Product Officer
Sell
1,064
$12.36
$13.15K
Russell Steven Jon
2 Mar 2026
Chief Medical Officer
Sell
1,026
$12.36
$12.68K
Hopman Mark
2 Mar 2026
Chief Commercial Officer
Sell
834
$12.36
$10.31K
Mensinger Mike
6 Jan 2026
Chief Product Officer
Sold on a plan
2,200
$30.10
$66.22K
Feider Stephen
2 Jan 2026
Chief Financial Officer
Sold after exercise
20,000
$29.53
$590.68K
Mensinger Mike
2 Jan 2026
Chief Product Officer
Sold on a plan
600
$30.20
$18.12K
Mensinger Mike
2 Jan 2026
Chief Product Officer
Sold on a plan
7,200
$29.56
$212.83K
Hopman Mark
4 Dec 2025
Chief Commercial Officer
Sold on a plan
2,061
$30.66
$63.19K
Saint Sean
2 Dec 2025
President & CEO
Sell
3,278
$29.34
$96.16K
Feider Stephen
2 Dec 2025
Chief Financial Officer
Sell
1,427
$29.34
$41.86K
Mensinger Mike
2 Dec 2025
Chief Product Officer
Sell
1,063
$29.34
$31.18K
Russell Steven Jon
2 Dec 2025
Chief Medical Officer
Sell
1,025
$29.34
$30.07K
Hopman Mark
2 Dec 2025
Chief Commercial Officer
Sold on a plan
856
$29.34
$25.11K
Palasis Maria
1 Dec 2025
Director
Sold on a plan
500
$29.96
$14.98K
Palasis Maria
1 Dec 2025
Director
Sold on a plan
906
$29.33
$26.57K
Lezack Adam
1 Dec 2025
Director
Sold on a plan
500
$29.91
$14.96K
Lezack Adam
1 Dec 2025
Director
Sold on a plan
906
$29.35
$26.59K
Palasis Maria
31 Oct 2025
Director
Sold on a plan
119
$27.45
$3.27K
Palasis Maria
31 Oct 2025
Director
Sold on a plan
1,287
$26.86
$34.57K
Lezack Adam
31 Oct 2025
Director
Sold on a plan
38
$27.70
$1.05K
Lezack Adam
31 Oct 2025
Director
Sold on a plan
1,368
$26.85
$36.73K
Feider Stephen
3 Oct 2025
Chief Financial Officer
Sold after exercise
1,154
$22.28
$25.71K
Feider Stephen
3 Oct 2025
Chief Financial Officer
Sold after exercise
3,828
$21.52
$82.37K
Feider Stephen
1 Oct 2025
Chief Financial Officer
Sold after exercise
100
$21.08
$2.11K
Feider Stephen
1 Oct 2025
Chief Financial Officer
Sold after exercise
14,918
$20.76
$309.70K
Feider Stephen
8 Sep 2025
Chief Financial Officer
Sold after exercise
9,900
$21.13
$209.15K
Feider Stephen
5 Sep 2025
Chief Financial Officer
Sold after exercise
100
$21.00
$2.10K
Hopman Mark
5 Sep 2025
Chief Commercial Officer
Sold after exercise
11,411
$20.56
$234.66K
Hopman Mark
4 Sep 2025
Chief Commercial Officer
Sold after exercise
6,818
$19.97
$136.18K
Feider Stephen
2 Sep 2025
Chief Financial Officer
Sell
1,462
$18.86
$27.58K
Hopman Mark
2 Sep 2025
Chief Commercial Officer
Sell
848
$18.86
$16.00K
Mensinger Mike
2 Sep 2025
Chief Product Officer
Sell
1,089
$18.86
$20.54K
Russell Steven Jon
2 Sep 2025
Chief Medical Officer
Sell
1,015
$18.86
$19.15K
Saint Sean
2 Sep 2025
President & CEO
Sell
3,359
$18.86
$63.36K
Feider Stephen
22 Aug 2025
Chief Financial Officer
Sold after exercise
4,413
$17.01
$75.08K
Feider Stephen
19 Aug 2025
Chief Financial Officer
Sold after exercise
5,587
$17.03
$95.17K
Hopman Mark
19 Aug 2025
Chief Commercial Officer
Sold after exercise
16,158
$16.61
$268.38K
Saint Sean
2 Jun 2025
President & CEO
Sell
311
$18.69
$5.81K
Saint Sean
2 Jun 2025
President & CEO
Sell
2,185
$18.15
$39.66K
Saint Sean
2 Jun 2025
President & CEO
Sell
943
$17.03
$16.06K
Feider Stephen
2 Jun 2025
Chief Financial Officer
Sell
136
$18.69
$2.54K
Feider Stephen
2 Jun 2025
Chief Financial Officer
Sell
951
$18.15
$17.26K
Feider Stephen
2 Jun 2025
Chief Financial Officer
Sell
410
$17.03
$6.98K
Mensinger Mike
2 Jun 2025
Chief Product Officer
Sell
101
$18.69
$1.89K
Mensinger Mike
2 Jun 2025
Chief Product Officer
Sell
708
$18.15
$12.85K
Mensinger Mike
2 Jun 2025
Chief Product Officer
Sell
306
$17.03
$5.21K
Russell Steven Jon
2 Jun 2025
Chief Medical Officer
Sell
94
$18.69
$1.76K
Russell Steven Jon
2 Jun 2025
Chief Medical Officer
Sell
660
$18.15
$11.98K
Russell Steven Jon
2 Jun 2025
Chief Medical Officer
Sell
285
$17.03
$4.85K
Hopman Mark
2 Jun 2025
Chief Commercial Officer
Sell
79
$18.69
$1.48K
Hopman Mark
2 Jun 2025
Chief Commercial Officer
Sell
551
$18.15
$10.00K
Hopman Mark
2 Jun 2025
Chief Commercial Officer
Sell
238
$17.03
$4.05K
Wellington Hadley Harbor Aggregator IV, L.P.
31 Jan 2025
10% owner
Buy
1,000,000
$17.00
$17.00M
Mensinger Mike
31 Jan 2025
Chief Product Officer
Buy
33,350
$17.00
$566.95K
Mensinger Mike
31 Jan 2025
Chief Product Officer
Sold after exercise
13
$17.00
$221.00

What was left out

Form 4 filings counted 94
Amendments (4/A) skipped 7
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 26
Sales straight out of an exercise 15
Sales at will 39
Transactions with no price 0
Shares from compensation/vesting 4,286,158
History held since 31 Jan 2025