ICCCNasdaqIn Vitro & In Vivo Diagnostic SubstancesFiscal year ends December 31
IMMUCELL CORP /DE/
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$10.51−0.24 (-2.23%)
Close on Oct 19, 2026
- Market cap
- $96.58M
- P/E (TTM)
- 131.4
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
14.7%
1M of 9M shares
Institutional holders
31
7 new, 3 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
8 buys · 0 sales
Net bought $171.69K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Ejnar A. Knudsen III | 832,790 | 9.21% | 13D (active) amendment | Nov 19, 2025 |
| Srk Fund I, LP | 502,258 | 6.40% | 13D (active) amendment | Sep 17, 2024 |
| SRK Capital, LLC | 391,322 | 5.00% | 13D (active) | May 22, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ICCC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 268,130 | 2.95% | $2.69M | +7,803 | 0.00% |
| Morgan Stanley | 233,910 | 2.58% | $2.35M | +12,194 | 0.00% |
| Renaissance Technologies LLC | 171,089 | 1.88% | $1.72M | +19,300 | 0.00% |
| Cresset Asset Management, LLC | 135,267 | 1.49% | $1.36M | – | 0.00% |
| Geode Capital Management, LLC | 72,270 | 0.80% | $726.49K | +6,505 | 0.00% |
| Dimensional Fund Advisors LP | 58,452 | 0.64% | $587.44K | +2,422 | 0.00% |
| Bleichroeder LP | 50,000 | 0.55% | $502.50K | −51,594 | 0.09% |
| Steadtrust LLC | 45,370 | 0.50% | $455.97K | −9,000 | 0.23% |
| Mesirow Financial Investment Management, Inc. | 42,481 | 0.47% | $426.93K | – | 0.01% |
| Citadel Advisors LLC | 40,503 | 0.45% | $407.06K | +4,807 | 0.00% |
| Vanguard Fiduciary Trust Co | 37,766 | 0.42% | $379.55K | −4,903 | 0.00% |
| Strategic Financial Services, Inc, | 37,000 | 0.41% | $371.85K | – | 235348.10% |
| HighTower Advisors, LLC | 24,354 | 0.27% | $244.76K | – | 0.00% |
| BlackRock, Inc. | 22,860 | 0.25% | $229.74K | +4,674 | 0.00% |
| Jane Street Group, LLC | 15,751 | 0.17% | $158.30K | New | 0.00% |
| Quadrature Capital Ltd | 15,415 | 0.17% | $154.92K | New | 0.00% |
| Northern Trust Corp | 14,721 | 0.16% | $147.95K | −26,897 | 0.00% |
| Mercer Global Advisors Inc /Adv | 12,000 | 0.13% | $120.60K | New | 0.00% |
| Bailard, Inc. | 10,102 | 0.11% | $101.53K | – | 0.00% |
| Shufro Rose & Co LLC | 10,000 | 0.11% | $100.50K | −25,000 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 31 | 1M | 14.7% | 7 / 7 | 7 / 3 | 0M | 0M |
| Q1 2026 | 27 | 1M | 15.5% | 5 / 7 | 4 / 3 | 0M | 0M |
| Q4 2025 | 26 | 1M | 14.1% | 2 / 9 | 6 / 3 | 0M | 0M |
| Q3 2025 | 27 | 1M | 14.1% | 4 / 4 | 7 / 2 | 0M | 0M |
| Q2 2025 | 25 | 1M | 14.5% | 1 / 9 | 2 / 3 | 0M | 0M |
| Q1 2025 | 27 | 1M | 13.3% | 0 / 7 | 7 / 0 | 0M | 0M |
| Q4 2024 | 27 | 1M | 13.3% | 5 / 5 | 8 / 0 | 0M | 0M |
| Q3 2024 | 22 | 1M | 12.7% | 1 / 7 | 4 / 6 | 0M | 0M |
| Q2 2024 | 28 | 1M | 12.6% | 3 / 7 | 9 / 0 | 0M | 0M |
| Q1 2024 | 25 | 1M | 12.6% | 0 / 7 | 7 / 3 | 0M | 0M |
| Q4 2023 | 28 | 1M | 12.4% | 2 / 10 | 4 / 4 | 0M | 0M |
| Q3 2023 | 30 | 1M | 11.4% | 3 / 6 | 10 / 4 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ICCC | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 181,077 | 1.99% | $1.82M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 78,987 | 0.87% | $793.82K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 27,128 | 0.30% | $277.79K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 21,098 | 0.23% | $212.03K | 0.01% | Jun 30, 2026 |
| U.S. Core Equity 2 Portfolio | 18,384 | 0.20% | $206.08K | 0.00% | Jul 31, 2026 |
| Fidelity Total Market Index Fund | 13,563 | 0.15% | $138.89K | 0.00% | May 31, 2026 |
| Nationwide Bailard Small Cap Value Fund | 10,102 | 0.11% | $113.24K | 0.09% | Jul 31, 2026 |
| Fidelity Series Total Market Index Fund | 9,429 | 0.10% | $96.55K | 0.00% | May 31, 2026 |
| Vanguard Institutional Total Stock Market Index Fund | 5,165 | 0.06% | $51.91K | 0.00% | Jun 30, 2026 |
| U.S. Targeted Value Portfolio | 4,747 | 0.05% | $53.21K | 0.00% | Jul 31, 2026 |
| U.S. Vector Equity Portfolio | 2,993 | 0.03% | $33.55K | 0.00% | Jul 31, 2026 |
| Vanguard Balanced Index Fund | 2,901 | 0.03% | $29.16K | 0.00% | Jun 30, 2026 |
| Dimensional U.S. Targeted Value ETF | 2,781 | 0.03% | $31.18K | 0.00% | Jul 31, 2026 |
| U.S. Sustainability Core 1 Portfolio | 2,176 | 0.02% | $24.39K | 0.00% | Jul 31, 2026 |
| U.S. Social Core Equity 2 Portfolio | 2,105 | 0.02% | $23.60K | 0.00% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Boekhorst Paul Francis Olivier te | President and CEO, Director | 17,785 | 0.20% | Jun 22, 2026 |
| Bobbi Jo Brockmann | VP of Sales and Marketing, Director | 9,576 | 0.11% | Apr 14, 2026 |
| Timothy C. Fiori | Chief Financial Officer, Director | – | – | Jan 29, 2026 |
| Anthony DiMarco | Director | – | – | Apr 23, 2026 |
| Gilles Guillemette | Director | – | – | Apr 23, 2026 |
| Gloria F. Basse | Director | 3,530 | 0.04% | Apr 16, 2026 |
| David Scott Tomsche | Director | 131,387 | 1.45% | Apr 16, 2026 |
| Paul R. Wainman | Director | 6,269 | 0.07% | Apr 16, 2026 |
| Kathy V. Turner | Director | – | – | Apr 16, 2026 |
| Bryan K. Gathagan | Director | 1,000 | 0.01% | Apr 14, 2026 |
| Steven T. Rosgen | Director | – | – | Apr 14, 2026 |
| Michael F. Brigham | Director | 229,752 | 2.53% | Mar 24, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Boekhorst Paul Francis Olivier te President and CEO, Director | Jun 18, 2026 | Buy | +8,000 | $9.50 | $76.00K | 17,785 |
| Michael F. Brigham Director | Mar 20, 2026 | Option exercise | +25,000 | $5.84 | $146.00K | 229,752 |
| Michael F. Brigham Director | Mar 20, 2026 | Tax withholding | −24,052 | $6.07 | $146.00K | 205,700 |
| Boekhorst Paul Francis Olivier te President and CEO, Director | Dec 4, 2025 | Buy | +2,432 | $5.50 | $13.38K | 9,738 |
| Boekhorst Paul Francis Olivier te President and CEO, Director | Dec 3, 2025 | Buy | +3,598 | $5.05 | $18.17K | 7,306 |
| Boekhorst Paul Francis Olivier te President and CEO, Director | Dec 3, 2025 | Buy | +3,521 | $5.04 | $17.75K | 9,785 |
| Boekhorst Paul Francis Olivier te President and CEO, Director | Dec 3, 2025 | Buy | +2,556 | $5.00 | $12.78K | 6,264 |
| Boekhorst Paul Francis Olivier te President and CEO, Director | Dec 2, 2025 | Buy | +3,708 | $4.87 | $18.06K | 3,708 |
| David Scott Tomsche Director | Nov 25, 2025 | Buy | +1,633 | $4.77 | $7.79K | 4,740 |
| David Scott Tomsche Director | Nov 25, 2025 | Buy | +1,633 | $4.76 | $7.77K | 52,720 |
| Bryan K. Gathagan Director | Jun 12, 2025 | Buy | +1,000 | $6.32 | $6.32K | 1,000 |
| Gloria F. Basse Director | Jun 11, 2025 | Option exercise | +3,530 | $4.81 | $16.98K | 3,530 |
| David Scott Tomsche Director | Aug 28, 2024 | Returned to company | +2,186 | $3.55 | $7.76K | 131,797 |
| David Scott Tomsche Director | Aug 23, 2024 | Returned to company | +6,005 | $3.55 | $21.32K | 129,611 |
| David Scott Tomsche Director | Aug 22, 2024 | Returned to company | +10,000 | $3.55 | $35.50K | 123,606 |
| David Scott Tomsche Director | Aug 19, 2024 | Returned to company | +3,172 | $3.67 | $11.64K | 113,606 |
| David Scott Tomsche Director | Aug 16, 2024 | Returned to company | +4,811 | $3.72 | $17.90K | 110,434 |
| David Scott Tomsche Director | Aug 15, 2024 | Returned to company | +2,017 | $3.57 | $7.20K | 105,623 |
| David Scott Tomsche Director | Sep 6, 2023 | Returned to company | +3,100 | $4.75 | $14.73K | 103,606 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +100 | $5.44 | $544 | 100,506 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +69 | $5.53 | $382 | 100,406 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +100 | $5.53 | $553 | 100,337 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +69 | $5.53 | $382 | 100,237 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +31 | $5.53 | $171 | 100,168 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +31 | $5.53 | $171 | 100,137 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +69 | $5.53 | $382 | 100,106 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +31 | $5.53 | $171 | 100,037 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +69 | $5.53 | $382 | 100,006 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +31 | $5.53 | $171 | 99,937 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +69 | $5.53 | $382 | 99,906 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +100 | $5.53 | $553 | 99,837 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +831 | $5.47 | $4.55K | 99,737 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +309 | $5.50 | $1.70K | 98,906 |
| David Scott Tomsche Director | Mar 14, 2023 | Returned to company | +71 | $5.50 | $391 | 98,597 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +200 | $5.25 | $1.05K | 97,326 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +300 | $5.24 | $1.57K | 97,126 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +400 | $5.20 | $2.08K | 96,826 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +100 | $5.24 | $524 | 98,526 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +100 | $5.24 | $524 | 98,426 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +10 | $5.23 | $52 | 98,326 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +7 | $5.24 | $37 | 98,316 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +3 | $5.24 | $16 | 98,309 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +80 | $5.34 | $427 | 98,306 |
| David Scott Tomsche Director | Mar 13, 2023 | Returned to company | +900 | $5.37 | $4.83K | 98,226 |
| David Scott Tomsche Director | Sep 12, 2022 | Returned to company | +606 | $7.75 | $4.70K | 96,231 |
| David Scott Tomsche Director | Sep 12, 2022 | Returned to company | +195 | $7.80 | $1.52K | 96,426 |
| David Scott Tomsche Director | Sep 9, 2022 | Returned to company | +20 | $7.70 | $154 | 95,625 |
| David Scott Tomsche Director | Sep 9, 2022 | Returned to company | +33 | $7.80 | $257 | 95,605 |
| David Scott Tomsche Director | Sep 9, 2022 | Returned to company | +647 | $7.76 | $5.02K | 95,572 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +1 | $7.62 | $8 | 94,925 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +260 | $7.69 | $2.00K | 94,924 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +5 | $7.70 | $39 | 94,664 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +5 | $7.72 | $39 | 94,659 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +329 | $7.71 | $2.54K | 94,654 |
| David Scott Tomsche Director | Sep 8, 2022 | Returned to company | +306 | $7.68 | $2.35K | 94,325 |
| David Scott Tomsche Director | Jun 14, 2022 | Returned to company | +200 | $8.10 | $1.62K | 93,569 |
| David Scott Tomsche Director | Jun 14, 2022 | Returned to company | +50 | $8.05 | $403 | 93,619 |
| David Scott Tomsche Director | Jun 14, 2022 | Returned to company | +400 | $8.25 | $3.30K | 94,019 |
| David Scott Tomsche Director | Jun 13, 2022 | Returned to company | +462 | $7.81 | $3.61K | 92,746 |
| David Scott Tomsche Director | Jun 13, 2022 | Returned to company | +48 | $7.82 | $375 | 92,884 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.