ICON Public Limited Company
US ˙ NasdaqGS ˙ IE0005711209

SecurityICLR / ICON Public Limited Company
InstitutionAssetmark, Inc
Latest Disclosed Ownership8,835 shares
Latest Disclosed Value $ 977,690
Assetmark, Inc reports 80.42% increase in ownership of ICLR / ICON Public Limited Company

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 8,835 shares of ICON Public Limited Company (US:ICLR) valued at $977,681 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 4,897 shares of ICON Public Limited Company. This represents a change in shares of 80.42% during the quarter. The current value of the position is $1,271,356 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)
2026-05-06 2026-03-31 13F ICON SHS G4705A100 8,835 3,938 80.42 978 9.53 0.0020
2026-01-23 2025-12-31 13F ICON SHS G4705A100 4,897 1,763 56.25 892 62.77 0.0018
2025-11-06 2025-09-30 13F ICON SHS G4705A100 3,134 2,707 633.96 548 783.87 0.0012
2025-08-04 2025-06-30 13F ICON SHS G4705A100 427 -247 -36.65 62 -47.01 0.0001
2025-05-06 2025-03-31 13F ICON SHS G4705A100 674 -198 -22.71 118 -35.71 0.0003
2025-02-06 2024-12-31 13F ICON SHS G4705A100 872 -31 -3.43 183 -29.73 0.0005
2024-11-01 2024-09-30 13F ICON SHS G4705A100 903 133 17.27 259 7.47 0.0007
2024-08-13 2024-06-30 13F ICON SHS G4705A100 770 13 1.72 241 -5.12 0.0007
2024-05-07 2024-03-31 13F ICON SHS G4705A100 757 -204 -21.23 254 -6.62 0.0008
2024-02-09 2023-12-31 13F ICON SHS G4705A100 961 304 46.27 272 68.94 0.0010
2023-10-27 2023-09-30 13F ICON SHS G4705A100 657 -1,302 -66.46 162 -67.14 0.0006
2023-08-11 2023-06-30 13F ICON PLC SHS SHS G4705A100 1,959 445 29.39 490 51.70 0.0019
2023-05-05 2023-03-31 13F ICON PLC SHS SHS G4705A100 1,514 301 24.81 323 37.45 0.0013
2023-02-10 2022-12-31 13F ICON SHS G4705A100 1,213 386 46.67 236 54.61 0.0010
2022-11-01 2022-09-30 13F ICON SHS G4705A100 827 350 73.38 152 47.57 0.0007
2022-08-03 2022-06-30 13F ICON PLC SHS SHS G4705A100 477 305 177.33 103 145.24 0.0005
2022-05-13 2022-03-31 13F ICON PLC SHS SHS G4705A100 172 90 109.76 42 68.00 0.0002
2022-02-14 2021-12-31 13F ICON PLC SHS SHS G4705A100 82 -14 -14.58 25 0.00 0.0001
2021-11-12 2021-09-30 13F ICON PLC SHS SHS G4705A100 96 12 14.29 25 47.06 0.0001
2021-08-16 2021-06-30 13F ICON PLC SHS SHS G4705A100 84 61 265.22 17 240.00 0.0001
2021-05-14 2021-03-31 13F ICON SHS G4705A100 23 -193 -89.35 5 -88.10 0.0000
2021-02-10 2020-12-31 13F ICON PLC SHS SHS G4705A100 216 44 25.58 42 27.27 0.0002
2020-11-13 2020-09-30 13F ICON PLC SHS SHS G4705A100 172 142 473.33 33 560.00 0.0002
2020-08-11 2020-06-30 13F ICON PLC SHS SHS G4705A100 30 -157 -83.96 5 -80.00 0.0000
2020-05-12 2020-03-31 13F ICON PLC SHS SHS G4705A100 187 -609 -76.51 25 -81.75 0.0002
2020-02-11 2019-12-31 13F ICON PLC SHS SHS G4705A100 796 308 63.11 137 90.28 0.0010
2019-11-13 2019-09-30 13F ICON PLC SHS SHS G4705A100 488 44 9.91 72 5.88 0.0006
2019-08-14 2019-06-30 13F ICON PLC SHS COM G4705A100 444 -16 -3.48 68 7.94 0.0006
2019-05-14 2019-03-31 13F ICON PLC SHS COM G4705A100 460 -9 -1.92 63 3.28 0.0006
2019-02-13 2018-12-31 13F ICON PLC SHS COM G4705A100 469 5 1.08 61 -14.08 0.0006
2018-11-13 2018-09-30 13F ICON PLC SHS COM G4705A100 464 12 2.65 71 18.33 0.0006
2018-08-01 2018-06-30 13F ICON PLC SHS COM G4705A100 452 10 2.26 60 15.38 0.0006
2018-05-16 2018-03-31 13F ICON PLC SHS COM G4705A100 442 -423 -48.90 52 -46.39 0.0005
2018-02-13 2017-12-31 13F ICON PLC SHS COM G4705A100 865 136 18.66 97 16.87 0.0010
2017-11-08 2017-09-30 13F ICON PLC SHS COM G4705A100 729 -12 -1.62 83 15.28 0.0009
2017-08-14 2017-06-30 13F ICON PLC SHS COM G4705A100 741 207 38.76 72 67.44 0.0009
2017-09-15 2017-03-31 13F/A-1 ICON PLC SHS COM G4705A100 534 -223 -29.46 43 -24.56 0.0006
2017-05-08 2017-03-31 13F ICON PLC SHS COM G4705A100 534 -223 43
2017-09-15 2016-12-31 13F/A-1 ICON PLC SHS COM G4705A100 757 -62 -7.57 57 -9.52 0.0008
2017-02-14 2016-12-31 13F ICON PLC SHS COM G4705A100 757 -62 57
2017-09-14 2016-09-30 13F/A-1 ICON PLC SHS COM G4705A100 819 -39,941 -97.99 63 -97.79 0.0010
2016-11-04 2016-09-30 13F ICON PLC SHS COM G4705A100 819 -39,941 63
2017-09-14 2016-06-30 13F/A-1 ICON PLC SHS COM G4705A100 40,760 -2,539 -5.86 2,854 -12.24 0.0480
2016-08-08 2016-06-30 13F ICON PLC SHS COM G4705A100 40,760 -2,539 2,854
2017-09-14 2016-03-31 13F/A-1 ICON PLC SHS COM G4705A100 43,299 25,489 143.12 3,252 134.97 0.0568
2016-05-13 2016-03-31 13F ICON PLC SHS COM G4705A100 43,299 25,489 3,252
2017-09-14 2015-12-31 13F/A-1 ICON PLC SHS COM G4705A100 17,810 -1,405 -7.31 1,384 1.47 0.0256
2016-02-12 2015-12-31 13F ICON PLC SHS COM G4705A100 17,810 -1,405 1,384
2016-01-05 2015-09-30 13F/A-1 ICON PLC SHS COM G4705A100 19,215 -24,056 -55.59 1,364 -53.16 0.0285
2015-11-10 2015-09-30 13F ICON PLC SHS COM G4705A100 19,215 1,364
2015-08-13 2015-06-30 13F ICON PLC SHS COM G4705A100 43,271 -3,767 -8.01 2,912 -12.24 0.0606
2015-05-12 2015-03-31 13F ICON PLC SHS COM G4705A100 47,038 47,038 0.00 3,318 0.0707
2015-02-03 2014-12-31 13F ICON PLC SHS COM G4705A100 0 -24,326 -100.00 0 -100.00
2014-11-10 2014-09-30 13F ICON PLC SHS COM G4705A100 24,326 -852 -3.38 1,392 17.37 0.0322
2014-08-12 2014-06-30 13F ICON PLC SHS COM G4705A100 25,178 25,178 1,186 0.0253
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.