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$ICCC
$10.32 -$0.30 (2.82%) Close

Ownership

13F as of Q2 2026 · 9.1M shares outstanding

Who owns ICCC?

By type of holder
Institutions 15.0% Insiders 1.7% Everyone else 83.3%
Concentration Top 10 holders own 27.3%
Ejnar A. Knudsen III 9.2% · SRK Fund I, LP 5.5%
Institutional ownership
15.0%
-0.4 pts vs last qtr
Institutional holders
32
+4 vs last qtr
Net shares bought
−35.8K
by institutions in Q2 2026
New / sold out
7 / 3
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Renaissance Technologies LLC +19.3K
  • Jane Street Group, LLC NEW +15.8K

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Biggest sellers in Q2 2026
  • Bleichroeder LP −51.6K
  • Northern Trust Corp −26.9K

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Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for ImmuCell Corp in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2016–FY2025
+108.2%
+8.49% a year
Each share's claim on the business
−52.0%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $2.58M
over 10 fiscal years
Diluted shares, split-adjusted
4.2M6.7M9.1M2016: 4.3M shares'162017: 4.9M shares'172018: 5.5M shares'182019: 6.8M shares'192020: 7.2M shares'202021: 7.6M shares'212022: 7.7M shares'222023: 7.7M shares'232024: 8.2M shares'242025: 9.0M shares'25
Buybacks Stock-based comp
$0$184.4K$368.9K2016 buybacks: $02016 stock comp: $67.4K'162017 buybacks: $02017 stock comp: $199.8K'172018 buybacks: $02018 stock comp: $344.0K'182019 buybacks: $02019 stock comp: $313.1K'192020 buybacks: $02020 stock comp: $253.1K'202021 buybacks: $02021 stock comp: $144.3K'212022 buybacks: $02022 stock comp: $266.2K'222023 buybacks: $02023 stock comp: $368.9K'232024 buybacks: $02024 stock comp: $325.6K'242025 buybacks: $02025 stock comp: $295.9K'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years74% 3–5 years10% 1–3 years8% Under 1 year8%
Quarterly turnover
8.5%
of institutional shares changed hands
Top 10 managers, median time held
5 years

Super Investors

Investment managers reporting ICCC on Form 13F
VC
Vanguard Capital Management LLC
Shares
268.1K
% of company
2.95%
Change vs last qtr
+7.8K (+3.0%)
Held since
≤2021
MS
Morgan Stanley
Shares
233.9K
% of company
2.58%
Change vs last qtr
+12.2K (+5.5%)
Held since
≤2021

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Institutional Funds

Mutual funds and ETFs reporting ICCC on Form N-PORT; together they hold 4.4% of the company
VT
Vanguard Total Stock Market Index Fund
Vanguard Index Funds
Position value
$1.82M
% of company
1.99%
% of the fund
0.00%
As of
June 30, 2026
VE
Vanguard Extended Market Index Fund
Vanguard Index Funds
Position value
$794K
% of company
0.87%
% of the fund
0.00%
As of
June 30, 2026

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
EA
Ejnar A. Knudsen III
5%+ holder13D · 9.2%
Shares
832.8K
% of company
9.17%
Change vs last qtr
—
Held since
—
SF
SRK Fund I, LP
5%+ holder13D · 6.4%
Shares
502.3K
% of company
5.53%
Change vs last qtr
—
Held since
—

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