Insider trading

Period: 120 months Stock: BLKB Role: Directors × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

51 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.

51 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.

51 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.

51 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.
51 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
51 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.

51 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
21 Nov 2025
Sold at will
$90.38K 1,600 at 56.49
20.1%
Not planned
29 Aug 2025
DeFiore Deneen Director
Sold at will
$266.45K 4,000 at 66.61
28.4%
Not planned
8 Aug 2025
Sold at will
$159.95K 2,500 at 63.98
23.9%
Not planned
19 Nov 2024
Sold at will
$147.10K 1,800 at 81.72
20.9%
Not planned
19 Nov 2024
Nash Sarah E Director
Sold at will
$133.54K 1,600 at 83.46
6.7%
Not planned
8 Nov 2024
Nash Sarah E Director
Sold at will
$260.34K 3,100 at 83.98
11.6%
Not planned
8 Aug 2024
Nash Sarah E Director
Sold at will
$245.31K 3,220 at 76.18
10.7%
Not planned
27 Nov 2023
Nash Sarah E Director
Sold at will
$311.43K 4,113 at 75.72
13.2%
Not planned
7 Nov 2023
ELLIS GEORGE H Director
Sold at will
$183.90K 2,500 at 73.56
22.8%
Not planned
17 Aug 2023
ELLIS GEORGE H Director
Sold at will
$144.02K 2,000 at 72.01
15.4%
Not planned
30 May 2023
Nash Sarah E Director
Sold at will
$147.59K 2,050 at 72.00
6.9%
Not planned
15 May 2023
ELLIS GEORGE H Director
Sold at will
$121.55K 1,725 at 70.46
15.1%
Not planned
10 Aug 2022
Nelson Joyce Director
Sold, plan not stated
$201.71K 3,500 at 57.63
15.6%
9 Aug 2022
ELLIS GEORGE H Director
Sold, plan not stated
$84.27K 1,500 at 56.18
11.6%
20 May 2022
Leitch Andrew M Director
Sold, plan not stated 3×
$314.64K 5,000 at 62.93
16.1%
25 Feb 2022
ELLIS GEORGE H Director
Sold, plan not stated
$61.91K 1,000 at 61.91
10.2%
27 Aug 2021
Nash Sarah E Director
Sold, plan not stated
$131.46K 1,935 at 67.94
7.0%
24 Aug 2021
Nelson Joyce Director
Sold, plan not stated
$192.04K 2,842 at 67.57
13.4%
9 Aug 2021
ELLIS GEORGE H Director
Sold, plan not stated
$218.27K 3,000 at 72.76
23.4%
23 Feb 2021
Nelson Joyce Director
Sold, plan not stated
$143.47K 2,000 at 71.74
10.0%
23 Feb 2021
ELLIS GEORGE H Director
Sold, plan not stated
$101.26K 1,435 at 70.56
12.9%
18 Feb 2021
Nash Sarah E Director
Sold, plan not stated
$99.99K 1,376 at 72.67
5.3%
13 Feb 2020
CHOU TIMOTHY C K Director
Sold, plan not stated
$150.83K 1,850 at 81.53
8.1%
12 Nov 2019
Leitch Andrew M Director
Sold, plan not stated
$280.51K 3,449 at 81.33
12.6%
12 Nov 2019
Nash Sarah E Director
Sold, plan not stated
$124.70K 1,546 at 80.66
6.6%
1 Nov 2019
ELLIS GEORGE H Director
Sold, plan not stated
$21.03K 250 at 84.12
3.5%
7 Aug 2019
Nelson Joyce Director
Sold, plan not stated
$88.62K 1,000 at 88.62
7.7%
2 Aug 2019
ELLIS GEORGE H Director
Sold, plan not stated
$176.40K 2,000 at 88.20
31.2%
30 May 2019
CHOU TIMOTHY C K Director
Sold, plan not stated
$30.79K 400 at 76.98
1.9%
12 Feb 2019
Nelson Joyce Director
Sold, plan not stated
$76.32K 1,000 at 76.32
6.6%
12 Feb 2019
CHOU TIMOTHY C K Director
Sold, plan not stated
$58.09K 750 at 77.45
3.5%
21 Nov 2018
CHOU TIMOTHY C K Director
Sold, plan not stated
$70.88K 1,000 at 70.88
4.5%
20 Nov 2018
Nash Sarah E Director
Sold, plan not stated
$130.69K 1,878 at 69.59
7.9%
5 Nov 2018
Nelson Joyce Director
Sold, plan not stated
$73.03K 1,000 at 73.03
6.2%
13 Aug 2018
ELLIS GEORGE H Director
Sold, plan not stated
$128.79K 1,326 at 97.13
17.2%
10 Aug 2018
Leitch Andrew M Director
Sold, plan not stated
$287.16K 3,000 at 95.72
10.9%
10 Aug 2018
ELLIS GEORGE H Director
Sold, plan not stated
$126.22K 1,326 at 95.19
14.6%
10 May 2018
Nelson Joyce Director
Sold, plan not stated
$203.50K 2,000 at 101.75
12.6%
3 May 2018
Nash Sarah E Director
Sold, plan not stated
$49.73K 520 at 95.64
2.3%
26 Feb 2018
Leitch Andrew M Director
Sold, plan not stated 2×
$1.03M 10,000 at 102.96
28.3%
23 Feb 2018
ELLIS GEORGE H Director
Sold, plan not stated
$61.04K 600 at 101.73
8.0%
15 Feb 2018
CHOU TIMOTHY C K Director
Sold, plan not stated
$438.77K 4,432 at 99.00
18.1%
31 Oct 2017
ELLIS GEORGE H Director
Sold, plan not stated
$152.21K 1,500 at 101.47
16.6%
22 Aug 2017
Nash Sarah E Director
Sold, plan not stated
$93.68K 1,105 at 84.78
4.7%
14 Aug 2017
ELLIS GEORGE H Director
Sold, plan not stated
$256.20K 3,000 at 85.40
25.0%
17 May 2017
Nash Sarah E Director
Sold, plan not stated
$64.90K 825 at 78.67
3.8%
4 May 2017
ELLIS GEORGE H Director
Sold, plan not stated
$138.04K 1,750 at 78.88
15.8%
15 Feb 2017
Nelson Joyce Director
Sold, plan not stated
$71.07K 1,000 at 71.07
7.0%
13 Feb 2017
CHOU TIMOTHY C K Director
Sold, plan not stated
$249.43K 3,531 at 70.64
13.9%
15 Nov 2016
Nelson Joyce Director
Sold, plan not stated
$64.69K 1,000 at 64.69
6.6%
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