Universal Display Corporation
US ˙ NasdaqGS ˙ US91347P1057

SecurityOLED / Universal Display Corporation
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership225,635 shares
Latest Disclosed Value $ 20,664,782
Janus Henderson Group Plc reports 64.65% decrease in ownership of OLED / Universal Display Corporation

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 225,635 shares of Universal Display Corporation (US:OLED) valued at $20,681,704 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 638,245 shares of Universal Display Corporation. This represents a change in shares of -64.65% during the quarter. The current value of the position is $20,350,021 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)
2026-05-18 2026-03-31 13F/A-1 UNIVERSAL DISPLAY COM 91347P105 225,635 -412,610 -64.65 20,665 -72.27 0.0035
2026-05-15 2026-03-31 13F UNIVERSAL DISPLAY COM 91347P105 225,635 -412,610 -64.65 20,665 -72.27 0.0038
2026-02-17 2025-12-31 13F UNIVERSAL DISPLAY COM 91347P105 638,245 121,586 23.53 74,521 0.44 0.0334
2025-11-14 2025-09-30 13F UNIVERSAL DISPLAY COM 91347P105 516,659 496,574 2,472.36 74,192 2,292.52 0.0339
2025-08-14 2025-06-30 13F UNIVERSAL DISPLAY COM 91347P105 20,085 -530,840 -96.35 3,102 -96.12 0.0015
2025-05-15 2025-03-31 13F UNIVERSAL DISPLAY COM 91347P105 550,925 -748 -0.14 80,016 -0.81 0.0439
2025-02-14 2024-12-31 13F UNIVERSAL DISPLAY COM 91347P105 551,673 161,782 41.49 80,674 -1.43 0.0410
2024-11-14 2024-09-30 13F UNIVERSAL DISPLAY COM 91347P105 389,891 -44,038 -10.15 81,842 -10.27 0.0419
2024-08-14 2024-06-30 13F UNIVERSAL DISPLAY COM 91347P105 433,929 -100 -0.02 91,205 24.77 0.0488
2024-05-15 2024-03-31 13F UNIVERSAL DISPLAY COM 91347P105 434,029 173,496 66.59 73,099 46.64 0.0399
2024-02-14 2023-12-31 13F UNIVERSAL DISPLAY COM 91347P105 260,533 82,175 46.07 49,850 77.97 0.0297
2023-11-14 2023-09-30 13F UNIVERSAL DISPLAY COM 91347P105 178,358 156,974 734.07 28,012 809.15 0.0183
2023-08-14 2023-06-30 13F UNIVERSAL DISPLAY COM 91347P105 21,384 -25 -0.12 3,082 -7.17 0.0019
2023-05-15 2023-03-31 13F UNIVERSAL DISPLAY COM 91347P105 21,409 2,463 13.00 3,320 62.30 0.0022
2023-02-14 2022-12-31 13F UNIVERSAL DISPLAY COM 91347P105 18,946 -241,172 -92.72 2,046 -91.67 0.0015
2023-01-13 2022-09-30 13F/A-1 UNIVERSAL DISPLAY COM 91347P105 260,118 -4,913 -1.85 24,542 -8.46 0.0184
2022-11-14 2022-09-30 13F UNIVERSAL DISPLAY COM 91347P105 260,118 -4,913 24,542 0.0184
2022-08-15 2022-06-30 13F UNIVERSAL DISPLAY COM 91347P105 265,031 -131,933 -33.24 26,809 -59.53 0.0185
2022-05-16 2022-03-31 13F UNIVERSAL DISPLAY COM 91347P105 396,964 -212,508 -34.87 66,242 -34.12 0.0320
2022-02-14 2021-12-31 13F UNIVERSAL DISPLAY COM 91347P105 609,472 123,946 25.53 100,543 21.14 0.0419
2021-11-16 2021-09-30 13F UNIVERSAL DISPLAY COM 91347P105 485,526 55,615 12.94 82,996 -13.24 0.0363
2021-08-16 2021-06-30 13F UNIVERSAL DISPLAY COM 91347P105 429,911 11,482 2.74 95,657 -3.43 0.0409
2021-05-17 2021-03-31 13F UNIVERSAL DISPLAY COM 91347P105 418,429 26,896 6.87 99,051 10.07 0.0452
2021-02-16 2020-12-31 13F UNIVERSAL DISPLAY COM 91347P105 391,533 -8,771 -2.19 89,991 24.34 0.0418
2020-11-16 2020-09-30 13F UNIVERSAL DISPLAY COM 91347P105 400,304 385,167 2,544.54 72,374 3,095.32 0.0377
2020-08-14 2020-06-30 13F UNIVERSAL DISPLAY COM 91347P105 15,137 -103,598 -87.25 2,265 -85.51 0.0013
2020-05-14 2020-03-31 13F UNIVERSAL DISPLAY COM 91347P105 118,735 -184,688 -60.87 15,634 -75.00 0.0108
2020-02-18 2019-12-31 13F UNIVERSAL DISPLAY COM 91347P105 303,423 15,950 5.55 62,537 29.58 0.0320
2019-11-14 2019-09-30 13F UNIVERSAL DISPLAY COM 91347P105 287,473 6,066 2.16 48,263 -8.86 0.0261
2019-07-31 2019-06-30 13F UNIVERSAL DISPLAY COM 91347P105 281,407 62,845 28.75 52,952 58.58 0.0288
2019-04-30 2019-03-31 13F UNIVERSAL DISPLAY COM 91347P105 218,562 -297,385 -57.64 33,392 -30.84 0.0185
2019-02-06 2018-12-31 13F UNIVERSAL DISPLAY COM 91347P105 515,947 668 0.13 48,285 -20.50 0.0308
2018-11-09 2018-09-30 13F UNIVERSAL DISPLAY COM 91347P105 515,279 66,109 14.72 60,739 57.19 0.0325
2018-08-10 2018-06-30 13F UNIVERSAL DISPLAY COM 91347P105 449,170 107,605 31.50 38,640 11.98 0.0220
2018-05-14 2018-03-31 13F UNIVERSAL DISPLAY COM 91347P105 341,565 17,865 5.52 34,506 -38.21 0.0203
2018-03-12 2017-12-31 13F/A-1 UNIVERSAL DISPLAY COM 91347P105 323,700 -48,620 -13.06 55,847 16.37 0.0344
2018-02-09 2017-12-31 13F UNIVERSAL DISPLAY COM 91347P105 323,700 -48,620 55,847
2017-11-14 2017-09-30 13F UNIVERSAL DISPLAY COM 91347P105 372,320 5,839 1.59 47,991 19.89 0.0308
2017-08-17 2017-06-30 13F/A-1 UNIVERSAL DISPLAY COM 91347P105 366,481 31,351 9.35 40,029 38.77 0.0273
2017-08-14 2017-06-30 13F UNIVERSAL DISPLAY COM 91347P105 366,481 31,351 40,029
2017-05-03 2017-03-31 13F UNIVERSAL DISPLAY COM 91347P105 335,130 149,241 80.29 28,846 175.51 0.2025
2017-01-30 2016-12-31 13F UNIVERSAL DISPLAY COM 91347P105 185,889 -19,242 -9.38 10,470 -8.05 0.0772
2016-10-24 2016-09-30 13F UNIVERSAL DISPLAY COM 91347P105 205,131 -57,059 -21.76 11,387 -35.92 0.0839
2016-07-29 2016-06-30 13F UNIVERSAL DISPLAY COM 91347P105 262,190 -101,885 -27.98 17,771 -9.77 0.1478
2016-05-12 2016-03-31 13F UNIVERSAL DISPLAY COM 91347P105 364,075 148,733 69.07 19,695 68.03 0.1598
2016-02-03 2015-12-31 13F UNIVERSAL DISPLAY COM 91347P105 215,342 215,342 11,721 0.0940
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.