AMN 헬스케어 서비스, Inc.
US ˙ NYSE ˙ US0017441017

SecurityAMN / AMN Healthcare Services, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Marshall Wace, Llp closes position in AMN / AMN Healthcare Services, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 0 shares of AMN Healthcare Services, Inc. (US:AMN) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 131,042 shares of AMN Healthcare Services, Inc.. 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)
2026-05-14 2026-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -100.00 0
2026-02-13 2025-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 131,042 2,065
2025-11-13 2025-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 234,857 180,257 330.14 4,547 303.01 0.0046
2025-08-13 2025-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 54,600 54,600 1,129 0.0013
2025-05-15 2025-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -206,724 -100.00 0 -100.00
2025-02-13 2024-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 206,724 -118,990 -36.53 4,945 -64.19 0.0059
2024-11-14 2024-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 325,714 187,461 135.59 13,807 94.96 0.0168
2024-08-14 2024-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 138,253 -139,444 -50.21 7,083 -59.20 0.0095
2024-05-15 2024-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 277,697 243,421 710.18 17,359 576.46 0.0264
2024-02-14 2023-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 34,276 -101,132 -74.69 2,567 -77.75 0.0043
2023-11-14 2023-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 135,408 133,005 5,534.96 11,534 4,302.29 0.0234
2023-08-14 2023-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 2,403 2,403 262 0.0005
2023-05-15 2023-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -21,969 -100.00 0 -100.00
2023-02-14 2022-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 21,969 -64,172 -74.50 2,259 -75.26 0.0051
2022-11-14 2022-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 86,141 86,141 9,126 0.0200
2021-11-15 2021-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -20,503 -100.00 0 -100.00
2021-08-13 2021-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 20,503 17,537 591.27 1,989 808.22 0.0097
2021-05-17 2021-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 2,966 2,966 -85.53 219 -88.99 0.0010
2020-08-13 2020-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -691 -100.00 0 -100.00
2020-05-15 2020-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 691 691 40 0.0004
2019-05-14 2019-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -161,133 -100.00 0 -100.00
2019-02-14 2018-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 161,133 161,133 9,130 0.0932
2017-05-12 2017-03-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -99,256 -100.00 0 -100.00
2017-02-10 2016-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 99,256 40,184 68.03 3,816 102.66 0.0251
2016-11-10 2016-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 59,072 40,418 216.67 1,883 152.41 0.0134
2016-08-12 2016-06-30 13F AMN HEALTHCARE COMMON STOCK 001744101 18,654 18,654 -68.42 746 -60.38 0.0063
2015-02-17 2014-12-31 13F AMN HEALTHCARE COMMON STOCK 001744101 0 -91,115 -100.00 0 -100.00
2014-11-13 2014-09-30 13F AMN HEALTHCARE COMMON STOCK 001744101 91,115 91,115 1,431 0.0206
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.