Vault-13

IMMUCELL CORP ICCC

COM PAR · Common Stock · CUSIP 452525306

32 institutional holders +1 vs Q1 2023
1,058,2521.1m shares reported held*
13.7% of all shares outstanding*
$5.3mreported value*
4 new 8 added 6 reduced 3 sold out net bought ≈ $5.9k (+1.2k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 7.7m as of 2023-08-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $5.03.

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

02040Q3 22: 27Q4 22: 27Q1 23: 31Q2 23: 3232Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 202227
Q4 202227
Q1 202331
Q2 202332

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q4 22: 6 bought or addedQ4 22: 6 cut or sold outQ4 22Q1 23: 11 bought or addedQ1 23: 6 cut or sold outQ1 23Q2 23: 12 bought or addedQ2 23: 9 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 202266
Q1 2023116
Q2 2023129

Biggest buyers

SUSQUEHANNA INTERNATIONAL GROUP, LLP New +17,122+17.1k
GEODE CAPITAL MANAGEMENT, LLC Added +7,645+7.6k
HM PAYSON & CO Added +4,000+4.0k
MORGAN STANLEY Added +3,600+3.6k
Tower Research Capital LLC (TRC) Added +2,067+2.1k
BlackRock Inc. Added +985+985
OSAIC HOLDINGS, INC. New +550+550
WEALTH EFFECTS LLC Added +450+450
Essex Financial Services, Inc. Added +300+300
ROYAL BANK OF CANADA New +241+241

Biggest sellers

FLAGSHIP HARBOR ADVISORS, LLC Sold out -14,230-14.2k
Minerva Advisors LLC Sold out -11,958-12.0k
CITADEL ADVISORS LLC Reduced -5,749-5.7k
Perritt Capital Management Inc Reduced -2,649-2.6k
RENAISSANCE TECHNOLOGIES LLC Reduced -438-438
DIMENSIONAL FUND ADVISORS LP Reduced -425-425
NORTHERN TRUST CORP Reduced -339-339
UBS Group AG Reduced -96-96
FMR LLC Sold out -2-2

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Knudsen Ejnar A III 13D · may seek influence filed 2025-11-20
Stated purposeAll shares held by the Reporting Person are held by the Reporting Person for investment purposes. The Reporting Person currently has no plans or proposals that relate to, or would result in, any of the matters described in subsections (a) through (j) of Item 4 of the instructions to Schedule 13D. Full filing
9.2% 832.8k 2025-11-20

Insider purchases and sales in Q2 2023

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 0 sellingQ4 21Q1 22: 0 buyingQ1 22: 0 sellingQ2 22: 1 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20210—0——
Q1 20220—0——
Q2 20221$8.0k0——
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——

None reported in Q2 2023.

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 206,325206.3k $1.0m $1.0m 0.00% Unchanged
2 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 122,389122.4k $612.0k $612.0k 0.00% Reduced -438 -438
3 Bleichroeder LP 0.10% of their portfolio NEW YORK, NY 101,594101.6k $508.0k $508.0k 0.10% Unchanged
4 Cresset Asset Management, LLC 0.00% of their portfolio Chicago, IL 100,506100.5k $512.6k $512.6k 0.00% Unchanged
5 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 74,97475.0k $374.9k $374.9k 0.00% Added +3.6k +3,600
6 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 64,26464.3k $327.7k $327.7k 0.00% Reduced -425 -425
7 SHUFRO ROSE & CO LLC 0.03% of their portfolio NEW YORK, NY 62,40862.4k $312.0k $312.0k 0.03% Unchanged
8 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 45,72745.7k $233.2k $233.2k 0.00% Added +7.6k +7,645
9 Empire Financial Management Company, LLC 0.08% of their portfolio NEW YORK, NY 42,00042.0k $210.0k $210.0k 0.08% Unchanged
10 Overbrook Management Corp 0.04% of their portfolio NEW YORK, NY 32,85732.9k $164.3k $164.3k 0.04% Unchanged
11 Strategic Financial Services, Inc. 0.01% of their portfolio UTICA, NY 31,00031.0k $155.9k $155.9k 0.01% Unchanged
12 Perritt Capital Management Inc 0.07% of their portfolio Chicago, IL 27,02627.0k $135.1k $135.1k 0.07% Reduced -2.6k -2,649
13 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 21,35421.4k $109.0k $109.0k 0.00% Unchanged
14 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 17,12217.1k $87.3k $87.3k 0.00% New
15 BlackRock Inc. 0.00% of their portfolio New York, NY 17,06717.1k $85.3k $85.3k 0.00% Added +985 +985
16 WEALTH EFFECTS LLC 0.04% of their portfolio BOSTON, MA 16,11716.1k $80.6k $80.6k 0.04% Added +450 +450
17 Prosperity Planning, Inc. 0.03% of their portfolio NORTH KANSAS CITY, MO 16,00016.0k $80.0k $80.0k 0.03% Unchanged
18 Essex Financial Services, Inc. 0.01% of their portfolio ESSEX, CT 14,00014.0k $70.0k $70.0k 0.01% Added +300 +300
19 HM PAYSON & CO 0.00% of their portfolio PORTLAND, ME 12,13012.1k $61.9k $61.9k 0.00% Added +4.0k +4,000
20 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 12,07712.1k $60.4k $60.4k 0.00% Reduced -339 -339
21 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 11,21311.2k $57.2k $57.2k 0.00% Reduced -5.7k -5,749
22 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 4,4024.4k $22.0k $22.0k 0.00% Added +2.1k +2,067
23 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 2,0322.0k $10.2k $10.2k 0.00% Unchanged
24 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,7001.7k $8.5k $8.5k 0.00% Reduced -96 -96
25 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 600600 $3.0k $3.0k 0.00% Unchanged
26 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 550550 $2.8k $2.8k 0.00% New
27 Geneos Wealth Management Inc. 0.00% of their portfolio ENGLEWOOD, CO 244244 $1.2k $1.2k 0.00% Unchanged
28 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 241241 $1.0k $1.0k 0.00% New
29 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 152152 $760 $760 0.00% Unchanged
30 Coppell Advisory Solutions LLC 0.00% of their portfolio COPPELL, TX 141141 $698 $698 0.00% New
31 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 4040 $200 $200 0.00% Added +2 +2
32 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged