Emergent BioSolutions Inc.
US ˙ NYSE ˙ US29089Q1058

SecurityEBS / Emergent BioSolutions Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership524,233 shares
Latest Disclosed Value $ 4,351,134
Trexquant Investment LP reports 73.77% increase in ownership of EBS / Emergent BioSolutions Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 524,233 shares of Emergent BioSolutions Inc. (US:EBS) valued at $4,351,134 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 301,689 shares of Emergent BioSolutions Inc.. This represents a change in shares of 73.77% during the quarter. The current value of the position is $4,230,560 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)
2026-05-15 2026-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 524,233 222,544 73.77 4,351 16.71 0.0313
2026-02-17 2025-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 301,689 -224,599 -42.68 3,729 -19.67 0.0332
2025-11-14 2025-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 526,288 -25,142 -4.56 4,642 31.92 0.0478
2025-08-12 2025-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 551,430 101,809 22.64 3,518 61.01 0.0397
2025-05-14 2025-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 449,621 -251,896 -35.91 2,185 -67.42 0.0254
2025-02-12 2024-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 701,517 261,099 59.28 6,707 82.38 0.0782
2024-11-12 2024-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 440,418 440,418 3,677 0.0466
2023-08-11 2023-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -62,698 -100.00 0 -100.00
2023-05-15 2023-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 62,698 62,698 650 0.0178
2023-02-13 2022-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -30,089 -100.00 0 -100.00
2022-11-14 2022-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 30,089 14,412 91.93 632 29.77 0.0222
2022-08-11 2022-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 15,677 -32,159 -67.23 487 -75.20 0.0218
2022-05-13 2022-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 47,836 47,836 1,964 0.0922
2022-02-11 2021-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -14,000 -100.00 0 -100.00
2021-11-12 2021-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 14,000 14,000 701 0.0557
2021-08-12 2021-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -3,942 -100.00 0 -100.00
2021-05-13 2021-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 3,942 3,942 366 0.0336
2021-02-11 2020-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -17,221 -100.00 0 -100.00
2020-11-06 2020-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 17,221 17,221 1,779 0.1145
2020-08-07 2020-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -8,861 -100.00 0 -100.00
2020-05-08 2020-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 8,861 8,861 513 0.0372
2018-05-03 2018-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -10,635 -100.00 0 -100.00
2018-02-08 2017-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 10,635 10,635 494 0.0542
2017-05-08 2017-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -6,111 -100.00 0 -100.00
2017-02-10 2016-12-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 6,111 6,111 201 0.0318
2016-08-10 2016-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -10,900 -100.00 0 -100.00
2016-05-11 2016-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 10,900 10,900 0.00 396 0.0464
2015-11-02 2015-09-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 0 -8,600 -100.00 0 -100.00
2015-08-12 2015-06-30 13F EMERGENT BIOSOLUTIONS COM 29089Q105 8,600 -23,600 -73.29 283 -69.44 0.0318
2015-05-13 2015-03-31 13F EMERGENT BIOSOLUTIONS COM 29089Q105 32,200 32,200 926 0.0945
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.