Cerus Corporation
US ˙ NasdaqGM ˙ US1570851014

SecurityCERS / Cerus Corporation
InstitutionStephens Inc /ar/
Latest Disclosed Ownership103,192 shares
Latest Disclosed Value $ 187,809
Stephens Inc /ar/ reports 6.89% increase in ownership of CERS / Cerus Corporation

On April 28, 2026 - Stephens Inc /ar/ filed a 13F-HR form disclosing ownership of 103,192 shares of Cerus Corporation (US:CERS) valued at $187,809 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 96,541 shares of Cerus Corporation. This represents a change in shares of 6.89% during the quarter. The current value of the position is $286,874 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)
2026-04-28 2026-03-31 13F CERUS COM 157085101 103,192 6,651 6.89 188 -5.56 0.0023
2026-02-05 2025-12-31 13F CERUS COM 157085101 96,541 -1,950 -1.98 199 26.92 0.0025
2025-10-27 2025-09-30 13F CERUS COM 157085101 98,491 -11,803 -10.70 157 0.65 0.0020
2025-07-29 2025-06-30 13F CERUS COM 157085101 110,294 8,910 8.79 156 10.71 0.0021
2025-05-01 2025-03-31 13F CERUS COM 157085101 101,384 -365 -0.36 141 -10.26 0.0021
2025-01-28 2024-12-31 13F CERUS COM 157085101 101,749 3,580 3.65 157 -8.24 0.0022
2024-10-28 2024-09-30 13F CERUS COM 157085101 98,169 -14,785 -13.09 171 -14.14 0.0024
2024-08-06 2024-06-30 13F CERUS COM 157085101 112,954 -3,200 -2.75 199 -9.59 0.0030
2024-05-15 2024-03-31 13F CERUS COM 157085101 116,154 -45,675 -28.22 220 -37.25 0.0034
2024-02-13 2023-12-31 13F CERUS COM 157085101 161,829 -107,949 -40.01 350 -20.14 0.0060
2023-11-14 2023-09-30 13F CERUS COM 157085101 269,778 12,839 5.00 437 -30.85 0.0084
2023-08-14 2023-06-30 13F CERUS COM 157085101 256,939 -11,290 -4.21 632 -20.60 0.0114
2023-05-15 2023-03-31 13F CERUS COM 157085101 268,229 -366,156 -57.72 797 -65.62 0.0153
2023-02-14 2022-12-31 13F/A-1 CERUS COM 157085101 634,385 -17,010 -2.61 2,316 -1.28 0.0474
2023-01-25 2022-12-31 13F CERUS OM 157085101 634,385 -17,010 2 0.0475
2022-11-02 2022-09-30 13F CERUS OM 157085101 651,395 -10,300 -1.56 2,345 -33.00 0.0501
2022-08-03 2022-06-30 13F CERUS OM 157085101 661,695 4,175 0.63 3,500 -3.05 0.0706
2022-05-04 2022-03-31 13F CERUS OM 157085101 657,520 -3,235 -0.49 3,610 -19.78 0.0589
2022-03-07 2021-12-31 13F CERUS OM 157085101 660,755 13,105 2.02 4,500 14.10 0.0681
2021-10-27 2021-09-30 13F CERUS COM 157085101 647,650 20,750 3.31 3,944 6.45 0.0610
2021-08-12 2021-06-30 13F CERUS COM 157085101 626,900 44,555 7.65 3,705 5.86 0.0555
2021-05-14 2021-03-31 13F CERUS COM 157085101 582,345 75,714 14.94 3,500 -0.17 0.0575
2021-02-10 2020-12-31 13F CERUS COM 157085101 506,631 -55,275 -9.84 3,506 -0.34 0.0629
2020-11-13 2020-09-30 13F CERUS COM 157085101 561,906 -245,491 -30.41 3,518 -33.98 0.0693
2020-08-24 2020-06-30 13F CERUS COM 157085101 807,397 -77,092 -8.72 5,329 29.56 0.1146
2020-05-14 2020-03-31 13F CERUS COM 157085101 884,489 -25,055 -2.75 4,113 7.17 0.1095
2020-02-14 2019-12-31 13F CERUS COM 157085101 909,544 -30,428 -3.24 3,838 -20.80 0.0804
2019-10-18 2019-09-30 13F CERUS COM 157085101 939,972 30,652 3.37 4,846 -5.17 0.1066
2019-08-01 2019-06-30 13F CERUS COM 157085101 909,320 141,707 18.46 5,110 6.86 0.1157
2019-05-03 2019-03-31 13F CERUS COM 157085101 767,613 32,262 4.39 4,782 28.27 0.1134
2019-02-11 2018-12-31 13F CERUS COM 157085101 735,351 81,276 12.43 3,728 -20.95 0.1058
2018-11-14 2018-09-30 13F CERUS COM 157085101 654,075 654,075 4,716 0.1173
2017-11-08 2017-09-30 13F CERUS COM 157085101 0 -963,702 -100.00 0 -100.00
2017-08-10 2017-06-30 13F CERUS COM 157085101 963,702 12,973 1.36 2,419 -42.83 0.0830
2017-05-11 2017-03-31 13F CERUS COM 157085101 950,729 2,539 0.27 4,231 2.57 0.1538
2017-02-09 2016-12-31 13F CERUS COM 157085101 948,190 -273,018 -22.36 4,125 -45.61 0.1682
2016-11-30 2016-09-30 13F/A-2 CERUS COM 157085101 1,221,208 -162,387 -11.74 7,584 -12.16 0.3320
2016-11-10 2016-09-30 13F CERUS COM 157085101 1,221,208 7,584
2016-08-05 2016-06-30 13F CERUS COM 157085101 1,383,595 237,782 20.75 8,634 27.06 0.3851
2016-05-05 2016-03-31 13F CERUS COM 157085101 1,145,813 33,148 2.98 6,795 -3.37 0.3326
2016-02-10 2015-12-31 13F CERUS COM 157085101 1,112,665 113,238 11.33 7,032 54.99 0.3527
2015-11-03 2015-09-30 13F CERUS COM 157085101 999,427 56,579 6.00 4,537 -7.28 0.2363
2015-07-29 2015-06-30 13F CERUS COM 157085101 942,848 132,721 16.38 4,893 44.85 0.2220
2015-05-06 2015-03-31 13F CERUS COM 157085101 810,127 611,299 307.45 3,378 172.20 0.1539
2015-02-12 2014-12-31 13F CERUS COM 157085101 198,828 17,500 9.65 1,241 70.70 0.0587
2014-11-14 2014-09-30 13F CERUS COM 157085101 181,328 -5,325 -2.85 727 -6.19 0.0360
2014-08-15 2014-06-30 13F CERUS COM 157085101 186,653 0 0.00 775 -13.50 0.0390
2014-05-13 2014-03-31 13F CERUS COM 157085101 186,653 -10,000 -5.09 896 -29.34 0.0488
2014-02-14 2013-12-31 13F CERUS COM 157085101 196,653 1,000 0.51 1,268 -3.57 0.0629
2013-11-06 2013-09-30 13F CERUS COM 157085101 195,653 1,325 0.68 1,315 53.08 0.0709
2013-08-12 2013-06-30 13F CERUS COM 157085101 194,328 194,328 859 0.0480
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.