Quick Takeaways
- ICCC - IMMUCELL CORP /DE/ has 16 insiders with reported activity on this page.
- Net insider value flow over the last year: +$101,991.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 16 Insiders of IMMUCELL CORP /DE/
- Symbol
- ICCC on Nasdaq
- Location
- Portland, ME
What Changed
- Buy value: $101,991; sell value: $0.
- Net share flow: +20,081.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to buying over the last 12 months. Net value: +$101,991.
Buys
$101,991
Shares: 20,081
Insiders: 3
Sells
$0
Shares: 0
Insiders: 0
Net
+$101,991
Shares: +20,081
Insiders: 3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 19,081 | 0 | $95,671 | $0 | +$95,671 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 1,000 | 0 | $6,320 | $0 | +$6,320 |
IMMUCELL CORP /DE/ executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jonathan E. Rothschild | Director | $4,302,205 | Mixed | 03 Jun 2021 | ||
| Joseph H. Crabb | Former VP and CSO | $1,195,613 | Mixed | 09 Mar 2022 | ||
| Michael F. Brigham | Director | $1,139,541 | Mixed | 20 Mar 2026 | ||
| Boekhorst Paul Francis Olivier Te | President and CEO, Director | $970,146 | +$80,117 | +9% | Mixed | 27 Jan 2026 |
| David Scott Tomsche | Director | $625,795 | +$15,554 | +2.5% | Mixed | 15 Apr 2026 |
| Timothy C. Fiori | Chief Financial Officer, Director | $164,700 | Mixed | 27 Jan 2026 | ||
| Gloria F. Basse | Director | $52,979 | Mixed | 15 Apr 2026 | ||
| Bryan K. Gathagan | Director | $42,320 | +$6,320 | +18% | Mixed | 12 Jun 2025 |
| Rosgen Steven T. | Director | $36,000 | Mixed | 16 Apr 2025 | ||
| Paul R. Wainman | Director | $36,000 | Mixed | 15 Apr 2026 | ||
| David Cunningham | Director | $36,000 | Mixed | 15 Dec 2022 | ||
| Elizabeth Luttrell Williams | VP of Manufacturing Operations | $8,150 | Mixed | 31 Jan 2022 | ||
| Kathy Turner V | Director | Mixed | 15 Apr 2026 | |||
| Bobbi Jo Brockmann | VP of Sales and Marketing, Director | Mixed | 27 Jan 2026 | |||
| Gilles Guillemette | Director | Mixed | 15 Apr 2026 | |||
| Anthony DiMarco | Director | Mixed | 15 Apr 2026 |
Top shareholders of IMMUCELL CORP /DE/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Jonathan E. Rothschild |
3/4/5
|
Director |
—
class O/S missing
|
514,003
|
$4,302,205 | — | 03 Jun 2021 | |
| VANGUARD GROUP INC |
13F
|
Company |
—
class O/S missing
|
302,996
|
$1,863,425 | — | 31 Dec 2025 | |
| Joseph H. Crabb |
3/4/5
|
Former VP and CSO |
—
class O/S missing
|
142,845
|
$1,195,613 | — | 09 Mar 2022 | |
| Michael F. Brigham |
3/4/5
|
Director |
—
mixed-class rows
|
206,700
mixed-class rows
|
$1,139,541 | — | 20 Mar 2026 | |
| Boekhorst Paul Francis Olivier Te |
3/4/5
|
President and CEO, Director |
—
mixed-class rows
|
119,238
mixed-class rows
|
$970,146 | +$80,117 | 27 Jan 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
—
class O/S missing
|
150,689
|
$926,737 | — | 31 Dec 2025 | |
| Cresset Asset Management, LLC |
13F
|
Company |
—
class O/S missing
|
135,267
|
$831,892 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
124,716
|
$767,003 | — | 31 Dec 2025 | |
| David Scott Tomsche |
3/4/5
|
Director |
—
mixed-class rows
|
143,320
mixed-class rows
|
$625,795 | +$15,554 | 15 Apr 2026 | |
| Bleichroeder LP |
13F
|
Company |
—
class O/S missing
|
101,594
|
$624,803 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
72,257
|
$444,473 | — | 31 Dec 2025 | |
| Steadtrust LLC |
13F
|
Company |
—
class O/S missing
|
56,770
|
$349,136 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
54,281
|
$333,829 | — | 31 Dec 2025 | |
| Dauntless Investment Group, LLC |
13F
|
Company |
—
class O/S missing
|
39,633
|
$243,743 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
—
class O/S missing
|
39,393
|
$242,267 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
—
class O/S missing
|
37,993
|
$233,657 | — | 31 Dec 2025 | |
| Strategic Financial Services, Inc. |
13F
|
Company |
—
class O/S missing
|
37,000
|
$230,880 | — | 31 Dec 2025 | |
| Mesirow Financial Investment Management, Inc. |
13F
|
Company |
—
class O/S missing
|
36,481
|
$224,358 | — | 31 Dec 2025 | |
| SHUFRO ROSE & CO LLC |
13F
|
Company |
—
class O/S missing
|
35,000
|
$215,250 | — | 31 Dec 2025 | |
| Timothy C. Fiori |
3/4/5
|
Chief Financial Officer, Director |
—
mixed-class rows
|
150,000
mixed-class rows
|
$164,700 | — | 27 Jan 2026 | |
| HighTower Advisors, LLC |
13F
|
Company |
—
class O/S missing
|
19,354
|
$119,027 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
—
class O/S missing
|
16,258
|
$99,987 | — | 31 Dec 2025 | |
| Essex Financial Services, Inc. |
13F
|
Company |
—
class O/S missing
|
11,000
|
$67,650 | — | 31 Dec 2025 | |
| Gloria F. Basse |
3/4/5
|
Director |
—
mixed-class rows
|
15,463
mixed-class rows
|
$52,979 | — | 15 Apr 2026 | |
| Bryan K. Gathagan |
3/4/5
|
Director |
—
mixed-class rows
|
11,000
mixed-class rows
|
$42,320 | +$6,320 | 12 Jun 2025 | |
| Paul R. Wainman |
3/4/5
|
Director |
—
class O/S missing
|
11,933
|
$36,000 | — | 15 Apr 2026 | |
| David Cunningham |
3/4/5
|
Director |
—
class O/S missing
|
10,000
|
$36,000 | — | 15 Dec 2022 | |
| Rosgen Steven T. |
3/4/5
|
Director |
—
class O/S missing
|
10,000
|
$36,000 | — | 16 Apr 2025 | |
| HM PAYSON & CO |
13F
|
Company |
—
class O/S missing
|
4,000
|
$24,600 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
—
class O/S missing
|
2,040
|
$12,546 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
—
class O/S missing
|
1,611
|
$9,908 | — | 31 Dec 2025 | |
| Elizabeth Luttrell Williams |
3/4/5
|
VP of Manufacturing Operations |
—
class O/S missing
|
1,000
|
$8,150 | — | 31 Jan 2022 | |
| FLAGSHIP HARBOR ADVISORS, LLC |
13F
|
Company |
—
class O/S missing
|
730
|
$4,490 | — | 31 Dec 2025 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
—
class O/S missing
|
391
|
$2,404 | — | 31 Dec 2025 | |
| HARBOUR INVESTMENTS, INC. |
13F
|
Company |
—
class O/S missing
|
250
|
$1,538 | — | 31 Dec 2025 | |
| Capital Advisors, Ltd. LLC |
13F
|
Company |
—
class O/S missing
|
98
|
$1,000 | — | 31 Dec 2025 | |
| JONES FINANCIAL COMPANIES LLLP |
13F
|
Company |
—
class O/S missing
|
19
|
$117 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
—
class O/S missing
|
1
|
$4 | — | 31 Dec 2025 | |
| Ejnar A. Knudsen III |
13D/G
|
— |
9.2%
|
832,790
|
— | $0 | 19 Nov 2025 | |
| Bobbi Jo Brockmann |
3/4/5
|
VP of Sales and Marketing, Director |
—
mixed-class rows
|
105,000
mixed-class rows
|
— | — | 27 Jan 2026 | |
| Kathy Turner V |
3/4/5
|
Director |
—
class O/S missing
|
17,899
|
— | — | 15 Apr 2026 |
Recent Insider Transactions by Companies or Individuals for IMMUCELL CORP /DE/
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kathy Turner V | ICCC | Non Qualified Stock Options (Right to buy) | Award | 17,899 | 17,899 | 15 Apr 2026 | Direct | |||
| David Scott Tomsche | ICCC | Non Qualified Stock Options (Right to buy) | Award | 11,933 | 11,933 | 15 Apr 2026 | Direct | |||
| Gloria F. Basse | ICCC | Non Qualified Stock Options (Right to buy) | Award | 11,933 | 11,933 | 15 Apr 2026 | Direct | |||
| Paul R. Wainman | ICCC | Non Qualified Stock Options (Right to buy) | Award | 11,933 | 11,933 | 15 Apr 2026 | Direct | |||
| Michael F. Brigham | ICCC | Common Stock, par value $.01 per share | Tax liability | -10.5% | -24,052 | 205,700 | 20 Mar 2026 | Direct | ||
| Michael F. Brigham | ICCC | Common Stock, par value $.01 per share | Options Exercise | 12.2% | 25,000 | 229,752 | 20 Mar 2026 | Direct | ||
| Michael F. Brigham | ICCC | Stock Options (right to buy) | Options Exercise | -100% | -25,000 | 0 | 20 Mar 2026 | Direct | ||
| Boekhorst Paul Francis Olivier Te | ICCC | Stock Options (right to buy) | Award | 109,500 | 109,500 | 27 Jan 2026 | Direct | |||
| Timothy C. Fiori | ICCC | Stock Options (right to buy) | Award | 120,000 | 120,000 | 27 Jan 2026 | Direct | |||
| Bobbi Jo Brockmann | ICCC | Stock Options (right to buy) | Award | 100,000 | 100,000 | 27 Jan 2026 | Direct | |||
| Boekhorst Paul Francis Olivier Te | ICCC | Common Stock $0.10 par value per share | Purchase | 33.3% | $13,376 | $5.50 | 2,432 | 9,738 | 04 Dec 2025 | Direct |
| Boekhorst Paul Francis Olivier Te | ICCC | Common Stock $0.10 par value per share | Purchase | 97% | $18,152 | $5.04 | 3,598 | 7,306 | 03 Dec 2025 | Direct |
| Boekhorst Paul Francis Olivier Te | ICCC | Common Stock $0.10 par value per share | Purchase | 163.9% | $30,536 | $5.02 | 6,077 | 9,785 | 03 Dec 2025 | Direct |
| Boekhorst Paul Francis Olivier Te | ICCC | Common Stock $0.10 par value per share | Purchase | $18,053 | $4.87 | 3,708 | 3,708 | 02 Dec 2025 | Direct | |
| David Scott Tomsche | ICCC | Common Stock $0.10 par value per share | Purchase | 52.6% | $7,781 | $4.76 | 1,633 | 4,740 | 25 Nov 2025 | By Spouse |
| David Scott Tomsche | ICCC | Common Stock $0.10 par value per share | Purchase | 3.2% | $7,773 | $4.76 | 1,633 | 52,720 | 25 Nov 2025 | Direct |
| Boekhorst Paul Francis Olivier Te | ICCC | Stock Options (right to buy) | Award | 97.8% | 74,277 | 150,260 | 07 Nov 2025 | Direct | ||
| Bryan K. Gathagan | ICCC | Common stock $0.10 per value per share | Purchase | $6,320 | $6.32 | 1,000 | 1,000 | 12 Jun 2025 | Direct | |
| Gloria F. Basse | ICCC | Common stock $0.10 per value per share | Options Exercise | 3,530 | 3,530 | 11 Jun 2025 | Direct | |||
| Gloria F. Basse | ICCC | Non Qualified Stock Options (Right to buy) | Options Exercise | -100% | -11,474 | 0 | 11 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.