Old Second Bancorp OSBC Insider Ownership

NASDAQ OSBC

$24.87 -0.23 (-0.92%)

At close: Oct 21, 2026 · 4:00 PM EDT

Insider Holdings by Owner

1.99Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

3.56%

▼-0.276% pp QoQ

Shares Held by Insiders

1.82Mn

filed for Sep 2026

▼-7.22% QoQ

Shares Outstanding

51.25Mn

51,250,245 shares

Direct Holdings

1.51Mn

Indirect: 314.03K

Net Shares Traded (QoQ)

-141.69K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, Old Second Bancorp insiders bought $502 of stock on the open market (24 shares) and sold $8.34 million (372.34K shares).

By number of insiders, Old Second Bancorp saw one insider buy and 7 insiders sell on the open market over the past 12 months.
Among Old Second Bancorp's insiders, the largest open-market purchases in the past 12 months were by Billy J. Lyons Jr. (Director), totaling $502 (24 shares), most recently on May 11, 2026.
On the sell side, Darin Patrick Campbell (President, Powersports Lending) led open-market sales of Old Second Bancorp stock over the past 12 months with $2.39 million (116.66K shares), most recently on September 2, 2026.
The latest open-market trade on record is a sale of 16K shares for $395,080 by Gary S. Collins (Vice Chairman) on September 23, 2026.
Apart from open-market trades, OSBC insiders received 87.74K shares in stock awards and gave up 25.91K shares to cover taxes or exercise prices in the past 12 months.
Per Business Quant data, Old Second Bancorp insiders hold 1.82Mn shares in total based on their latest Form 4 filings, down 7.22% from 1.96Mn shares at the end of Q2 2026 and down 10.58% from 2.04Mn shares at the end of Q3 2025.
Of the 1.82Mn shares held by Old Second Bancorp insiders, 1.51Mn shares (82.76%) are held directly and 314.03K shares (17.24%) indirectly, through trusts, partnerships, family members and other entities.
Per Business Quant, 16 insiders of OSBC hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
OSBC's largest insider holders by reported holdings are James Eccher (Chairman and CEO, 343.38K shares), Darin Patrick Campbell (President, Powersports Lending, 250.59K shares) and Keith Kotche (Director, 184.38K shares).
The largest insider, James Eccher, holds 18.85% of OSBC's insider total.
Institutional holders reported 75.65% of Old Second Bancorp's outstanding shares for Q2 2026; insiders' latest Form 4 filings put their stake at about 3.56%, and other investors, including the public, hold the remaining 20.79%.
In the past year, 16 insiders of Old Second Bancorp submitted 63 Form 4 filings reporting trades, awards or other transactions.
These insider figures for Old Second Bancorp are based on Form 4 filings through October 1, 2026.

Form 4 Holdings

Insiders Holding OSBC

Insiders 20

Shares held 1.99Mn

Of outstanding 3.87%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Darin Patrick Campbell	President, Powersports Lending	261,151	31,159	292,310	14.7%	03 Sep, 2026
2	James Eccher	Chairman And Ceo	213,290	39,985	253,275	12.8%	01 Oct, 2026
3	Keith Kotche	Director	202,340	0	202,340	10.2%	24 Feb, 2026
4	Edward Bonifas	Director	190,210	0	190,210	9.6%	25 Feb, 2026
5	Hugh H Mclean	Director	145,946	0	145,946	7.4%	08 Sep, 2026
6	John Ladowicz	Director	0	144,892	144,892	7.3%	16 Jan, 2026
7	Gary S Collins	Vice Chairman	45,558	60,261	105,819	5.3%	01 Oct, 2026
8	Bradley S. Adams	Cfo Coo	93,926	10,221	104,147	5.2%	01 Oct, 2026
9	Barry Finn	Director	103,616	0	103,616	5.2%	24 Feb, 2026
10	William Kane	Director	60,510	0	60,510	3.0%	23 Feb, 2023
11	John Jr Williams	Director	51,709	0	51,709	2.6%	24 Feb, 2026
12	William B Skoglund	Chairman	50,355	0	50,355	2.5%	25 Jul, 2023
13	Donald Pilmer	Evp	44,754	4,048	48,802	2.5%	01 Oct, 2026
14	Duane Suits	Director	44,883	0	44,883	2.3%	15 Feb, 2022
15	James F Tapscott	Director	41,273	0	41,273	2.1%	21 Feb, 2023
16	Richard A Jr Gartelmann	Evp	23,879	12,683	36,562	1.8%	01 Oct, 2026
17	Billy J Jr. Lyons	Director	30,712	0	30,712	1.5%	11 Aug, 2026
18	Rocks Patti Temple	Director	10,595	18,679	29,274	1.5%	24 Feb, 2026
19	Jill E York	Director	26,309	0	26,309	1.3%	24 Feb, 2026
20	Dennis L Klaeser	Director	22,536	0	22,536	1.1%	25 Feb, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,266 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
30 Sep, 2026	Gary S Collins	Vice Chairman	Acquired J	30	$0.00	$0	7,125	Indirect
30 Sep, 2026	James Eccher	Chairman And Ceo	Acquired J	17	$0.00	$0	6,395	Indirect
30 Sep, 2026	Bradley S. Adams	Cfo Coo	Acquired J	28	$0.00	$0	10,221	Indirect
30 Sep, 2026	Richard A Jr Gartelmann	Evp	Acquired J	35	$0.00	$0	12,683	Indirect
30 Sep, 2026	Donald Pilmer	Evp	Acquired J	11	$0.00	$0	4,048	Indirect
30 Sep, 2026	James Eccher	Chairman And Ceo	Acquired J	92	$0.00	$0	33,590	Indirect
23 Sep, 2026	Gary S Collins	Vice Chairman	Disposed S	16,000	$24.69	$395.08K	14,136	Direct
04 Sep, 2026	Gary S Collins	Vice Chairman	Disposed S	5,000	$25.71	$128.52K	53,136	Indirect
08 Sep, 2026	Hugh H Mclean	Director	Disposed S	25,000	$25.63	$640.77K	135,351	Direct
02 Sep, 2026	Darin Patrick Campbell	President, Powersports Lending	Disposed S	24,000	$25.53	$612.79K	250,589	Direct
03 Sep, 2026	Hugh H Mclean	Director	Disposed S	25,000	$25.73	$643.18K	135,351	Direct
12 Aug, 2026	James Eccher	Chairman And Ceo	Disposed S	19,313	$25.61	$494.70K	303,399	Direct
11 Aug, 2026	James Eccher	Chairman And Ceo	Disposed S	55,687	$25.46	$1.42Mn	322,712	Direct
10 Aug, 2026	Billy J Jr. Lyons	Director	Acquired A	20	$25.38	$508	20,117	Direct
30 Jun, 2026	Gary S Collins	Vice Chairman	Acquired J	37	$0.00	$0	7,095	Indirect
30 Jun, 2026	Donald Pilmer	Evp	Acquired J	1	$0.00	$0	184	Indirect
30 Jun, 2026	James Eccher	Chairman And Ceo	Acquired J	21	$0.00	$0	6,378	Indirect
30 Jun, 2026	Bradley S. Adams	Cfo Coo	Acquired J	34	$0.00	$0	10,193	Indirect
30 Jun, 2026	Richard A Jr Gartelmann	Evp	Acquired J	42	$0.00	$0	12,648	Indirect
30 Jun, 2026	Donald Pilmer	Evp	Acquired J	14	$0.00	$0	4,037	Indirect

Showing 1 to 20 of 1,266 transactions