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ICCC IMMUCELL CORP

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COM PAR (common), issuer CIK 811641

26 managers (27 13F filers) reported a position in ICCC shares at 2026-03-31, 1,369,036 shares in all. 2 filers opened a position and 3 filers sold out during the quarter.

Managers
26
13F filers
27
New
2
Added
7
Reduced
4
Sold out
3
Shares held by filers
1,369,036

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 2 filers holding302,996$1.92MnewTimeline
MORGAN STANLEYin group MORGAN STANLEY221,716$1.4M<0.01%+97,00013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC151,789$961K<0.01%+1,10013F-HRTimeline
Cresset Asset Management, LLC135,267$856K<0.01%013F-HRTimeline
Bleichroeder LP101,594$643K0.11%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC65,765$416K<0.01%-6,49213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP56,030$355K<0.01%+1,74913F-HRTimelineGroup
Steadtrust LLC54,370$344K0.2%-2,40013F-HRTimeline
Mesirow Financial Investment Management…42,481$269K<0.01%+6,00013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP41,618$263K<0.01%+3,62513F-HRTimelineGroup
Strategic Financial Services, Inc.37,000$234K0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC35,696$226K<0.01%-3,69713F-HRTimelineGroup
SHUFRO ROSE & CO LLC35,000$222K0.02%013F-HRTimeline
HighTower Advisors, LLC24,354$154K<0.01%+5,00013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.18,186$115K<0.01%+1,92813F-HRTimelineGroup
Militia Capital Management LLCin group Militia Capital Management LLC18,000$114K0.03%13F-HR/ATimelineGroup
Essex Financial Services, Inc.in group Essex Financial Services, Inc.11,000$69.6K<0.01%013F-HRTimelineGroup
BAILARD, INC.10,102$63.9K<0.01%new13F-HRTimeline
HM PAYSON & CO4,000$25.3K<0.01%013F-HRTimeline
UBS Group AGin group UBS Group AG1,113$7.04K<0.01%-49813F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.391$2.48K<0.01%013F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.250$1.58K<0.01%013F-HRTimeline
Advisory Services Network, LLC200$1.27K<0.01%new13F-HRTimeline
Capital Advisors, Ltd. LLC98$1K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP19$124<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1$4<0.01%013F-HR/ATimelineGroup