Cerus Corporation
US ˙ NasdaqGM ˙ US1570851014

SecurityCERS / Cerus Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Amalgamated Bank closes position in CERS / Cerus Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 0 shares of Cerus Corporation (US:CERS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 5,803 shares of Cerus Corporation. The current value of the position is $0 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)
2026-05-08 2026-03-31 13F CERUS COM 157085101 0 -100.00 0
2026-02-05 2025-12-31 13F CERUS COM 157085101 5,803 -242 -4.00 0 0.0001
2025-10-29 2025-09-30 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2025-08-04 2025-06-30 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2025-04-25 2025-03-31 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2025-02-04 2024-12-31 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2024-10-30 2024-09-30 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2024-08-12 2024-06-30 13F CERUS COM 157085101 6,045 0 0.00 0 0.0001
2024-04-23 2024-03-31 13F CERUS COM 157085101 6,045 -19,139 -76.00 0 0.0001
2024-02-06 2023-12-31 13F CERUS COM 157085101 25,184 -1,799 -6.67 0 0.0004
2023-11-08 2023-09-30 13F CERUS COM 157085101 26,983 0 0.00 0 0.0004
2023-08-11 2023-06-30 13F CERUS COM 157085101 26,983 2,832 11.73 0 0.0005
2023-05-02 2023-03-31 13F CERUS COM 157085101 24,151 -3,621 -13.04 0 0.0006
2023-02-10 2022-12-31 13F CERUS COM 157085101 27,772 0 0.00 0 -100.00 0.0009
2022-11-09 2022-09-30 13F CERUS COM 157085101 27,772 441 1.61 100 -31.03 0.0010
2022-08-15 2022-06-30 13F CERUS COM 157085101 27,331 -53 -0.19 145 -3.33 0.0014
2022-08-25 2022-03-31 13F/A-1 CERUS COM 157085101 27,384 -2,312 -7.79 150 -25.74 0.0012
2022-06-30 2022-03-31 13F CERUS COM 157085101 27,384 -2,312 150 0.0012
2022-02-15 2021-12-31 13F/A-1 CERUS COM 157085101 29,696 -553 -1.83 202 9.78 0.0015
2022-02-15 2021-12-31 13F CERUS COM 157085101 29,696 -553 202 0.0015
2021-10-29 2021-09-30 13F CERUS COM 157085101 30,249 -1,515 -4.77 184 -2.13 0.0016
2021-08-16 2021-06-30 13F CERUS COM 157085101 31,764 8,428 36.12 188 34.29 0.0015
2021-05-13 2021-03-31 13F CERUS COM 157085101 23,336 -2,323 -9.05 140 -21.35 0.0052
2021-02-12 2020-12-31 13F CERUS COM 157085101 25,659 127 0.50 178 11.25 0.0067
2020-10-30 2020-09-30 13F CERUS COM 157085101 25,532 -269 -1.04 160 -5.88 0.0070
2020-08-10 2020-06-30 13F CERUS COM 157085101 25,801 1,324 5.41 170 49.12 0.0079
2020-05-13 2020-03-31 13F CERUS COM 157085101 24,477 401 1.67 114 11.76 0.0028
2020-02-13 2019-12-31 13F CERUS COM 157085101 24,076 269 1.13 102 -17.07 0.0019
2019-11-13 2019-09-30 13F CERUS COM 157085101 23,807 -176 -0.73 123 -8.89 0.0026
2019-08-14 2019-06-30 13F CERUS COM 157085101 23,983 3,862 19.19 135 8.00 0.0032
2019-05-15 2019-03-31 13F CERUS COM 157085101 20,121 685 3.52 125 26.26 0.0030
2019-02-15 2018-12-31 13F CERUS COM 157085101 19,436 19,436 99 0.0028
2018-11-14 2018-09-30 13F CERUS COM 157085101 0 -19,419 -100.00 0 -100.00
2018-07-18 2018-06-30 13F CERUS COM 157085101 19,419 2,363 13.85 130 39.78 0.0032
2018-05-22 2018-03-31 13F CERUS COM 157085101 17,056 1,718 11.20 93 78.85 0.0025
2018-02-13 2017-12-31 13F CERUS COM 157085101 15,338 2,410 18.64 52 48.57 0.0014
2017-11-09 2017-09-30 13F CERUS COM 157085101 12,928 -300 -2.27 35 6.06 0.0011
2017-08-10 2017-06-30 13F CERUS COM 157085101 13,228 795 6.39 33 -40.00 0.0011
2017-05-12 2017-03-31 13F CERUS COM 157085101 12,433 -29 -0.23 55 1.85 0.0027
2017-02-14 2016-12-31 13F CERUS COM 157085101 12,462 1,665 15.42 54 -19.40 0.0024
2016-11-15 2016-09-30 13F/A-1 CERUS COM 157085101 10,797 49 0.46 67 -9.46 0.0039
2016-08-16 2016-06-30 13F CERUS COM 157085101 10,748 653 6.47 74 23.33 0.0043
2016-05-11 2016-03-31 13F CERUS COM 157085101 10,095 10,095 0.00 60 0.0058
2016-02-10 2015-12-31 13F CERUS COM 157085101 0 -10,013 -100.00 0 -100.00
2015-11-04 2015-09-30 13F CERUS COM 157085101 10,013 10,013 45 0.0047
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.