Insider trading

Period: 120 months Stock: SIBN Role: Directors × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

92 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

92 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

92 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

92 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
92 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
92 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

92 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
1 Oct 2026
DUNN JEFFREY W Director
Sold at will
$369.40K 20,000 at 18.47
55.5%
Sold half or more
1 Sep 2026
DUNN JEFFREY W Director
Sold on a plan 2×
$378.16K 20,000 at 18.91
55.5%
Sold half or more
3 Aug 2026
DUNN JEFFREY W Director
Sold at will
$369.21K 20,000 at 18.46
55.5%
Sold half or more
5 Jun 2026
DUNN JEFFREY W Director
Sold at will
$54.51K 3,575 at 15.25
18.2%
Not planned
29 May 2026
Sold at will
$49.49K 3,500 at 14.14
5.1%
Not planned
28 May 2026
Sold at will
$54.70K 3,780 at 14.47
5.2%
Not planned
4 May 2026
DUNN JEFFREY W Director
Sold at will
$4.43K 337 at 13.15
3.5%
Not planned
12 Mar 2026
Nishimura Mika Director
Sold at will
$56.70K 4,100 at 13.83
11.1%
Not planned
2 Feb 2026
DUNN JEFFREY W Director
Sold at will
$5.53K 337 at 16.42
3.3%
Not planned
8 Jan 2026
DUNN JEFFREY W Director · indirect
Sold on a plan
$425.51K 20,000 at 21.28
20.0%
Planned (10b5-1)
8 Dec 2025
DUNN JEFFREY W Director · indirect
Sold on a plan
$362.61K 18,759 at 19.33
14.6%
Planned (10b5-1)
8 Dec 2025
DUNN JEFFREY W Director
Sold on a plan
$23.99K 1,241 at 19.33
10.7%
Planned (10b5-1)
11 Nov 2025
DUNN JEFFREY W Director
Sold on a plan 2×
$1.52M 80,000 at 18.95
88.6%
Sold half or more
3 Nov 2025
DUNN JEFFREY W Director
Sold at will
$4.34K 293 at 14.80
2.6%
Not planned
8 Aug 2025
Freund John Gordon Director · indirect
Sold at will
$194.00K 12,132 at 15.99
11.7%
Not planned
4 Aug 2025
DUNN JEFFREY W Director
Sold at will
$5.09K 293 at 17.37
2.5%
Not planned
5 Jun 2025
DUNN JEFFREY W Director
Sold at will
$64.33K 3,377 at 19.05
16.3%
Not planned
1 May 2025
DUNN JEFFREY W Director
Sold at will
$4.63K 336 at 13.78
2.6%
Not planned
18 Feb 2025
DUNN JEFFREY W Director
Sold at will
$27.15K 1,619 at 16.77
9.6%
Not planned
3 Feb 2025
DUNN JEFFREY W Director
Sold at will
$5.56K 337 at 16.51
1.9%
Not planned
18 Nov 2024
DUNN JEFFREY W Director
Sold at will
$20.00K 1,609 at 12.43
7.3%
Not planned
4 Nov 2024
DUNN JEFFREY W Director
Sold at will
$4.62K 341 at 13.55
1.5%
Not planned
16 Aug 2024
DUNN JEFFREY W Director
Sold at will
$21.87K 1,580 at 13.84
5.9%
Not planned
2 Aug 2024
DUNN JEFFREY W Director
Sold at will
$4.91K 343 at 14.32
1.3%
Not planned
10 Jun 2024
DUNN JEFFREY W Director
Sold at will
$4.43K 341 at 12.99
1.8%
Not planned
16 May 2024
DUNN JEFFREY W Director
Sold at will
$23.92K 1,581 at 15.13
6.8%
Not planned
2 May 2024
DUNN JEFFREY W Director
Sold at will
$4.99K 343 at 14.54
1.4%
Not planned
13 Mar 2024
Nishimura Mika Director
Sold at will
$40.55K 2,500 at 16.22
11.4%
Not planned
16 Feb 2024
DUNN JEFFREY W Director
Sold at will 3×
$87.17K 4,160 at 20.96
9.4%
Not planned
2 Feb 2024
DUNN JEFFREY W Director
Sold at will
$6.80K 335 at 20.30
0.7%
Not planned
2 Jan 2024
Sold on a plan
$207.22K 9,900 at 20.93
30.7%
Planned (10b5-1)
16 Nov 2023
DUNN JEFFREY W Director
Sold at will 3×
$140.90K 7,965 at 17.69
15.1%
Not planned
2 Nov 2023
DUNN JEFFREY W Director
Sold at will
$7.11K 406 at 17.52
0.8%
Not planned
2 Oct 2023
DUNN JEFFREY W Director
Sold on a plan
$423.74K 20,000 at 21.19
22.3%
Planned (10b5-1)
1 Sep 2023
DUNN JEFFREY W Director
Sold on a plan 2×
$452.19K 20,000 at 22.61
22.3%
Planned (10b5-1)
16 Aug 2023
DUNN JEFFREY W Director
Sold at will 3×
$167.13K 7,964 at 20.99
10.3%
Not planned
11 Aug 2023
DUNN JEFFREY W Director
Sold on a plan
$429.63K 20,000 at 21.48
20.5%
Planned (10b5-1)
9 Aug 2023
Freund John Gordon Director · indirect
Sold at will
$616.20K 30,000 at 20.54
22.4%
Not planned
2 Aug 2023
DUNN JEFFREY W Director
Sold at will
$10.18K 406 at 25.08
0.5%
Not planned
20 Jun 2023
HILLEMAN JERYL L Director
Sold on a plan
$58.27K 2,081 at 28.00
11.9%
Planned (10b5-1)
15 Jun 2023
HILLEMAN JERYL L Director
Sold on a plan
$59.81K 2,081 at 28.74
10.7%
Planned (10b5-1)
16 May 2023
DUNN JEFFREY W Director
Sold at will 3×
$197.71K 7,962 at 24.83
9.3%
Not planned
9 May 2023
DUNN JEFFREY W Director
Sold at will
$6.00M 272,753 at 22.00
76.2%
Sold half or more
16 Feb 2023
DUNN JEFFREY W Director
Sold, plan not stated 3×
$90.32K 5,412 at 16.69
5.3%
6 Feb 2023
DUNN JEFFREY W Director · indirect
Sold, plan not stated
$3.68K 200 at 18.41
0.2%
3 Feb 2023
DUNN JEFFREY W Director · indirect
Sold, plan not stated
$1.84K 102 at 18.04
0.1%
17 Jan 2023
DUNN JEFFREY W Director
Sold, plan not stated
$28.07K 1,739 at 16.14
1.7%
16 Nov 2022
DUNN JEFFREY W Director
Sold, plan not stated 3×
$104.94K 7,969 at 13.17
7.1%
17 Oct 2022
DUNN JEFFREY W Director
Sold, plan not stated
$38.77K 2,114 at 18.34
1.8%
16 Aug 2022
DUNN JEFFREY W Director
Sold, plan not stated 3×
$137.69K 7,965 at 17.29
6.0%
Showing 1–50 of 92. Page 1 of 2 Older →