ImmuCell Corporation
US ˙ NasdaqCM ˙ US4525253062

SecurityICCC / ImmuCell Corporation
InstitutionVanguard Group Inc
Latest Disclosed Ownership302,996 shares
Latest Disclosed Value $ 1,863,425
Vanguard Group Inc reports 1.85% decrease in ownership of ICCC / ImmuCell Corporation

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 302,996 shares of ImmuCell Corporation (US:ICCC) valued at $1,863,425 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 308,702 shares of ImmuCell Corporation. This represents a change in shares of -1.85% during the quarter. The current value of the position is $2,911,792 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-01-29 2025-12-31 13F IMMUCELL COM PAR 452525306 302,996 -5,706 -1.85 1,863 -6.71 0.0000
2025-11-07 2025-09-30 13F IMMUCELL COM PAR 452525306 308,702 0 0.00 1,997 -7.03 0.0000
2025-08-11 2025-06-30 13F IMMUCELL COM PAR 452525306 308,702 83,107 36.84 2,149 98.89 0.0000
2025-05-09 2025-03-31 13F IMMUCELL COM PAR 452525306 225,595 0 0.00 1,081 -6.98 0.0000
2025-02-11 2024-12-31 13F IMMUCELL COM PAR 452525306 225,595 0 0.00 1,162 41.93 0.0000
2024-11-13 2024-09-30 13F IMMUCELL COM PAR 452525306 225,595 0 0.00 819 -25.23 0.0000
2024-08-13 2024-06-30 13F IMMUCELL COM PAR 452525306 225,595 9,268 4.28 1,094 -4.54 0.0000
2024-05-10 2024-03-31 13F IMMUCELL COM PAR 452525306 216,327 9,721 4.71 1,147 9.04 0.0000
2024-03-11 2023-12-31 13F/A-1 IMMUCELL COM PAR 452525306 206,606 1,509 0.74 1,052 -4.02 0.0000
2024-02-14 2023-12-31 13F IMMUCELL COM PAR 452525306 206,606 1,509 1,052 0.0000
2023-12-18 2023-09-30 13F/A-1 IMMUCELL COM PAR 452525306 205,097 -1,228 -0.60 1,095 6.21 0.0000
2023-11-14 2023-09-30 13F IMMUCELL COM PAR 452525306 205,097 -1,228 1,095 0.0000
2023-08-14 2023-06-30 13F IMMUCELL COM PAR 452525306 206,325 0 0.00 1,032 -2.18 0.0000
2023-07-14 2023-03-31 13F/A-1 IMMUCELL COM PAR 452525306 206,325 0 0.00 1,054 -16.22 0.0000
2023-05-15 2023-03-31 13F IMMUCELL COM PAR 452525306 206,325 0 1,054 0.0000
2023-02-10 2022-12-31 13F IMMUCELL COM PAR 452525306 206,325 3,596 1.77 1,259 -17.02 0.0000
2022-11-14 2022-09-30 13F IMMUCELL COM PAR 452525306 202,729 -1,000 -0.49 1,516 -14.40 0.0000
2022-08-12 2022-06-30 13F IMMUCELL COM PAR 452525306 203,729 -596 -0.29 1,771 -10.19 0.0000
2022-05-13 2022-03-31 13F IMMUCELL COM PAR 452525306 204,325 37,081 22.17 1,972 47.38 0.0000
2022-02-14 2021-12-31 13F IMMUCELL COM PAR 452525306 167,244 20,008 13.59 1,338 -2.90 0.0000
2021-11-12 2021-09-30 13F IMMUCELL COM PAR 452525306 147,236 0 0.00 1,378 -1.50 0.0000
2021-08-13 2021-06-30 13F IMMUCELL COM PAR 452525306 147,236 12,625 9.38 1,399 7.78 0.0000
2021-05-14 2021-03-31 13F IMMUCELL COM PAR 452525306 134,611 41,230 44.15 1,298 133.45 0.0000
2021-02-12 2020-12-31 13F IMMUCELL COM PAR 452525306 93,381 0 0.00 556 9.66 0.0000
2020-11-16 2020-09-30 13F IMMUCELL COM PAR 452525306 93,381 0 0.00 507 14.97 0.0000
2020-08-14 2020-06-30 13F IMMUCELL COM PAR 452525306 93,381 -1,200 -1.27 441 22.84 0.0000
2020-05-15 2020-03-31 13F IMMUCELL COM PAR 452525306 94,581 0 0.00 359 -26.28 0.0000
2020-02-14 2019-12-31 13F IMMUCELL COM PAR 452525306 94,581 0 0.00 487 -7.24 0.0000
2019-11-14 2019-09-30 13F IMMUCELL COM PAR 452525306 94,581 627 0.67 525 -14.08 0.0000
2019-08-14 2019-06-30 13F IMMUCELL COM PAR 452525306 93,954 15,885 20.35 611 23.19 0.0000
2019-05-15 2019-03-31 13F IMMUCELL COM PAR 452525306 78,069 256 0.33 496 -6.59 0.0000
2019-02-14 2018-12-31 13F IMMUCELL COM PAR 452525306 77,813 6,344 8.88 531 -10.76 0.0000
2018-12-13 2018-09-30 13F/A-2 IMMUCELL COM PAR 452525306 71,469 303 0.43 595 22.68 0.0000
2018-11-23 2018-09-30 13F/A-1 IMMUCELL COM PAR 452525306 71,469 0 595 0.0000
2018-11-14 2018-09-30 13F IMMUCELL COM PAR 452525306 71,469 303 595
2018-08-14 2018-06-30 13F IMMUCELL COM PAR 452525306 71,166 25,300 55.16 485 51.09 0.0000
2018-05-15 2018-03-31 13F IMMUCELL COM PAR 452525306 45,866 13,000 39.55 321 11.07 0.0000
2018-02-14 2017-12-31 13F IMMUCELL COM PAR 452525306 32,866 300 0.92 289 37.62 0.0000
2017-11-14 2017-09-30 13F IMMUCELL COM PAR 452525306 32,566 -1,542 -4.52 210 -16.00 0.0000
2017-08-24 2017-06-30 13F/A-1 IMMUCELL COM PAR $0.10 452525306 34,108 0 0.00 250 34.41 0.0000
2017-08-11 2017-06-30 13F IMMUCELL COM PAR $0.10 452525306 34,108 0 250
2017-05-12 2017-03-31 13F IMMUCELL COM PAR $0.10 452525306 34,108 0 0.00 186 -8.37 0.0000
2017-02-14 2016-12-31 13F IMMUCELL COM PAR $0.10 452525306 34,108 12,433 57.36 203 21.56 0.0000
2016-11-14 2016-09-30 13F IMMUCELL COM PAR $0.10 452525306 21,675 -1,200 -5.25 167 5.70 0.0000
2016-08-10 2016-06-30 13F IMMUCELL COM PAR $0.10 452525306 22,875 500 2.23 158 3.95 0.0000
2016-05-13 2016-03-31 13F IMMUCELL COM PAR $0.10 452525306 22,375 10,400 86.85 152 72.73 0.0000
2016-02-08 2015-12-31 13F IMMUCELL COM PAR $0.10 452525306 11,975 0 0.00 88 18.92 0.0000
2015-11-12 2015-09-30 13F/A-1 IMMUCELL COM PAR $0.10 452525306 11,975 1,900 18.86 74 -8.64 0.0000
2015-11-12 2015-09-30 13F/A-1 IMMUCELL COM PAR $0.10 452525306 11,975 1,900 74 0.0000
2015-11-12 2015-09-30 13F IMMUCELL COM PAR $0.10 452525306 4,206,321 128,873
2015-08-13 2015-06-30 13F IMMUCELL COM PAR $0.10 452525306 10,075 -400 -3.82 81 15.71 0.0000
2015-05-15 2015-03-31 13F/A-1 IMMUCELL COM PAR $0.10 452525306 10,475 0 0.00 70 37.25 0.0000
2015-05-14 2015-03-31 13F IMMUCELL COM PAR $0.10 452525306 10,475 70
2015-02-12 2014-12-31 13F IMMUCELL COM PAR $0.10 452525306 10,475 0 0.00 51 -1.92 0.0000
2014-11-12 2014-09-30 13F IMMUCELL COM PAR $0.10 452525306 10,475 10,475 52 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.