ImmuCell Corporation (ICCC) Ownership
ICCC ownership summary
as of October 18, 2026- Institutions
- 20.3% of shares outstanding
- Insiders
- 32.09% of shares outstanding
- Shares outstanding
- 9.1M
- Float
- 6.0M shares available to trade
- Short interest
- 0.29% 22K shares short
- Days to cover
- 1.69 short interest up 11.5% vs prior month
- Institutions 20.30%
- Insiders 32.09%
- Other investors 47.60%
ICCC top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard Capital Management, LLC | 2.95% | 268K | $2.9M | +7,803 (+3.0%) | June 30, 2026 |
| 2 | Morgan Stanley - Brokerage Accounts | 2.58% | 234K | $2.5M | +12,194 (+5.5%) | June 30, 2026 |
| 3 | Renaissance Technologies Corp | 1.88% | 171K | $1.8M | +19,300 (+12.7%) | June 30, 2026 |
| 4 | Cresset Asset Management, LLC | 1.49% | 135K | $1.5M | — | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 0.80% | 72K | $776,902 | +6,505 (+9.9%) | June 30, 2026 |
| 6 | Dimensional Fund Advisors, Inc. | 0.64% | 58K | $628,359 | +2,422 (+4.3%) | June 30, 2026 |
| 7 | Bleichroeder LP | 0.55% | 50K | $537,500 | −51,594 (−50.8%) | June 30, 2026 |
| 8 | Steadtrust LLC | 0.50% | 45K | $487,728 | −9,000 (−16.6%) | June 30, 2026 |
| 9 | Mesirow Fin Investmt Mgmt Intl Equity | 0.47% | 42K | $456,671 | — | June 30, 2026 |
| 10 | Citadel Advisors Llc | 0.45% | 41K | $435,407 | +4,807 (+13.5%) | June 30, 2026 |
| 11 | Vanguard Fiduciary Trust Co | 0.42% | 38K | $405,984 | −4,903 (−11.5%) | June 30, 2026 |
| 12 | Strategic Investment Advisors Inc | 0.41% | 37K | $397,750 | — | June 30, 2026 |
| 13 | HighTower Advisors, LLC | 0.27% | 24K | $261,806 | — | June 30, 2026 |
| 14 | BlackRock Inc | 0.25% | 23K | $245,745 | +4,674 (+25.7%) | June 30, 2026 |
| 15 | Jane Street Group LLC | 0.17% | 16K | $169,323 | +15,751 (0.0%) | June 30, 2026 |
| 16 | Quadrature Capital Limited | 0.17% | 15K | $165,711 | +15,415 (0.0%) | June 30, 2026 |
| 17 | Northern Trust Corp | 0.16% | 15K | $158,251 | −26,897 (−64.6%) | June 30, 2026 |
| 18 | Mercer Global Advisors Inc. | 0.13% | 12K | $129,000 | +12,000 (0.0%) | June 30, 2026 |
| 19 | Bailard Inc | 0.11% | 10K | $108,596 | — | September 30, 2026 |
| 20 | Militia Capital Management, LLC | 0.11% | 10K | $107,500 | −44,000 (−81.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 101K shares and 5 cut 136K.
ICCC top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 1.99% | 181K | $1.9M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.37% | 33K | $358,340 | −179 (−0.5%) | August 31, 2026 |
| 3 | iShares Micro-Cap ETF | 0.22% | 20K | $216,344 | −139 (−0.7%) | September 30, 2026 |
| 4 | DFA US Core Equity 2 I | 0.20% | 18K | $197,628 | — | August 31, 2026 |
| 5 | Fidelity Total Market Index | 0.15% | 14K | $145,684 | — | August 31, 2026 |
| 6 | Nationwide Bailard Sm Cp Val M | 0.11% | 10K | $108,596 | — | September 30, 2026 |
| 7 | Fidelity Series Total Market Index | 0.10% | 9,447 | $101,555 | — | August 31, 2026 |
| 8 | Vanguard MStar Inst Ttl StkMktIdxInstlPl | 0.06% | 5,165 | $55,524 | — | August 31, 2026 |
| 9 | DFA US Targeted Value I | 0.05% | 4,747 | $51,030 | — | August 31, 2026 |
| 10 | MINT GLOBAL SMALL CAPS FIF ACOES | 0.04% | 3,630 | $39,022 | +3,630 (0.0%) | June 30, 2026 |
| 11 | Dimensional Global Trgtd Value USD Acc | 0.04% | 3,610 | $38,808 | — | August 31, 2026 |
| 12 | Fidelity Nasdaq Composite Index | 0.04% | 3,347 | $35,980 | — | August 31, 2026 |
| 13 | DFA US Vector Equity I | 0.03% | 2,993 | $32,175 | — | August 31, 2026 |
| 14 | Vanguard Balanced Index Inv | 0.03% | 2,901 | $31,186 | — | August 31, 2026 |
| 15 | Dimensional US Targeted Value ETF | 0.03% | 2,781 | $29,896 | — | September 30, 2026 |
| 16 | DFA US Core Equity Class F | 0.03% | 2,418 | $25,994 | — | July 31, 2026 |
| 17 | DFA US Sustainability Core 1 | 0.02% | 2,176 | $23,392 | — | August 31, 2026 |
| 18 | DFA US Social Core Equity 2 Portfolio | 0.02% | 2,105 | $22,629 | — | August 31, 2026 |
| 19 | Dimensional US Core Equity 1 ETF | 0.02% | 1,920 | $20,640 | — | September 24, 2026 |
| 20 | Dimensional Global Core Equity USD Acc | 0.02% | 1,766 | $18,984 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ICCC insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-25 | David Scott Tomsche | Buy | $4.76 | 1,633 | $7,773 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
ICCC shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ICCC
Institutional investors own 20.3% of ImmuCell's shares and insiders 32.09%. The largest holder is Vanguard Capital Management, LLC with 2.95% of the shares (268K), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 5 reduced their stake in the latest filings. Short interest is 0.29% of the float, or 1.69 days of average trading volume. The share count rose 198.8% since 2014.
Related: ICCC key metrics. See the ICCC stock overview for the latest quote and news.
ICCC ownership FAQ
Who owns the most ImmuCell stock?
The largest shareholders of ImmuCell are Vanguard Capital Management, LLC (2.95%), Morgan Stanley - Brokerage Accounts (2.58%), Renaissance Technologies Corp (1.88%), Cresset Asset Management, LLC (1.49%), Geode Capital Management, LLC (0.80%).
What percentage of ImmuCell is owned by institutions?
Institutions hold 20.3% of ImmuCell's shares outstanding; insiders hold 32.09%.
Which funds own ImmuCell?
The largest fund holders of ImmuCell are Vanguard MStar Total Stk Mkt Idx Invest (1.99%), Fidelity Extended Market Index (0.37%), iShares Micro-Cap ETF (0.22%), DFA US Core Equity 2 I (0.20%), Fidelity Total Market Index (0.15%).
What is ImmuCell's short interest?
22K shares of ImmuCell were sold short, 0.29% of the float; at the average daily volume it would take 1.69 days to cover.
Are insiders buying or selling ImmuCell?
Of the latest 1 reported insider transactions in ImmuCell (since November 25, 2025), 1 were purchases and 0 were sales.
How many shares of ImmuCell are outstanding?
ImmuCell has 9.1M shares outstanding, of which 6.0M are in the public float.