Merit Medical Systems, Inc.
US ˙ NasdaqGS ˙ US5898891040

SecurityMMSI / Merit Medical Systems, Inc.
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership134,156 shares
Latest Disclosed Value $ 9,247,373
D. E. Shaw & Co., Inc. reports 32.14% decrease in ownership of MMSI / Merit Medical Systems, Inc.

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 134,156 shares of Merit Medical Systems, Inc. (US:MMSI) valued at $9,247,373 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 197,691 shares of Merit Medical Systems, Inc.. This represents a change in shares of -32.14% during the quarter. The current value of the position is $8,136,561 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 MERIT MED SYS COM 589889104 134,156 -63,535 -32.14 9,247 -46.93 0.0056
2026-02-17 2025-12-31 13F MERIT MED SYS COM 589889104 197,691 4,704 2.44 17,424 8.48 0.0096
2025-11-14 2025-09-30 13F MERIT MED SYS COM 589889104 192,987 -101,265 -34.41 16,062 -41.61 0.0091
2025-08-14 2025-06-30 13F MERIT MED SYS COM 589889104 294,252 -13,021 -4.24 27,507 -15.32 0.0195
2025-05-15 2025-03-31 13F MERIT MED SYS COM 589889104 307,273 9,011 3.02 32,482 12.60 0.0289
2025-02-14 2024-12-31 13F MERIT MED SYS COM 589889104 298,262 -55,495 -15.69 28,848 -17.49 0.0212
2024-11-14 2024-09-30 13F MERIT MED SYS COM 589889104 353,757 149,234 72.97 34,962 98.89 0.0300
2024-08-14 2024-06-30 13F MERIT MED SYS COM 589889104 204,523 14,009 7.35 17,579 21.81 0.0164
2024-05-15 2024-03-31 13F MERIT MED SYS COM 589889104 190,514 -15,000 -7.30 14,431 -7.55 0.0124
2024-02-14 2023-12-31 13F MERIT MED SYS COM 589889104 205,514 -22,144 -9.73 15,611 -0.65 0.0136
2023-11-14 2023-09-30 13F MERIT MED SYS COM 589889104 227,658 -47,918 -17.39 15,713 -31.83 0.0164
2023-08-14 2023-06-30 13F MERIT MED SYS COM 589889104 275,576 49,211 21.74 23,049 37.70 0.0235
2023-05-15 2023-03-31 13F MERIT MED SYS COM 589889104 226,365 32,207 16.59 16,740 22.08 0.0179
2023-02-14 2022-12-31 13F MERIT MED SYS COM 589889104 194,158 -29,824 -13.32 13,711 8.33 0.0152
2022-11-14 2022-09-30 13F MERIT MED SYS COM 589889104 223,982 -78,605 -25.98 12,657 -22.92 0.0151
2022-08-15 2022-06-30 13F MERIT MED SYS COM 589889104 302,587 -68,248 -18.40 16,421 -33.43 0.0193
2022-05-16 2022-03-31 13F MERIT MED SYS COM 589889104 370,835 -61,913 -14.31 24,668 -8.50 0.0231
2022-02-14 2021-12-31 13F MERIT MED SYS COM 589889104 432,748 75,991 21.30 26,960 5.25 0.0224
2021-11-15 2021-09-30 13F MERIT MED SYS COM 589889104 356,757 -47,346 -11.72 25,615 -1.97 0.0231
2021-08-16 2021-06-30 13F MERIT MED SYS COM 589889104 404,103 -72,065 -15.13 26,129 -8.36 0.0226
2021-05-17 2021-03-31 13F MERIT MED SYS COM 589889104 476,168 -10,199 -2.10 28,513 5.61 0.0275
2021-02-16 2020-12-31 13F MERIT MED SYS COM 589889104 486,367 -86,125 -15.04 26,998 8.41 0.0241
2020-11-16 2020-09-30 13F MERIT MED SYS COM 589889104 572,492 -60,846 -9.61 24,903 -13.87 0.0255
2020-08-14 2020-06-30 13F MERIT MED SYS COM 589889104 633,338 -188,066 -22.90 28,912 12.63 0.0344
2020-05-15 2020-03-31 13F MERIT MED SYS COM 589889104 821,404 -59,510 -6.76 25,669 -6.66 0.0400
2020-02-14 2019-12-31 13F MERIT MED SYS COM 589889104 880,914 638,437 263.30 27,502 272.35 0.0314
2019-11-14 2019-09-30 13F MERIT MED SYS COM 589889104 242,477 233,190 2,510.93 7,386 1,235.62 0.0091
2019-08-14 2019-06-30 13F MERIT MED SYS COM 589889104 9,287 -6,179 -39.95 553 -42.15 0.0007
2019-05-15 2019-03-31 13F MERIT MED SYS COM 589889104 15,466 7,145 85.87 956 106.03 0.0012
2019-02-14 2018-12-31 13F MERIT MED SYS COM 589889104 8,321 31 0.37 464 -8.84 0.0006
2018-11-14 2018-09-30 13F MERIT MED SYS COM 589889104 8,290 -9,879 -54.37 509 -45.27 0.0006
2018-08-14 2018-06-30 13F MERIT MED SYS COM 589889104 18,169 -4,409 -19.53 930 -9.18 0.0012
2018-05-15 2018-03-31 13F MERIT MED SYS COM 589889104 22,578 -6,561 -22.52 1,024 -18.67 0.0014
2018-02-14 2017-12-31 13F MERIT MED SYS COM 589889104 29,139 -16,128 -35.63 1,259 -34.32 0.0017
2017-11-14 2017-09-30 13F MERIT MED SYS COM 589889104 45,267 -28,499 -38.63 1,917 -31.88 0.0029
2017-08-14 2017-06-30 13F MERIT MED SYS COM 589889104 73,766 -134,769 -64.63 2,814 -53.31 0.0047
2017-05-15 2017-03-31 13F MERIT MED SYS COM 589889104 208,535 -4,980 -2.33 6,027 6.52 0.0106
2017-02-14 2016-12-31 13F MERIT MED SYS COM 589889104 213,515 -13,943 -6.13 5,658 2.41 0.0096
2016-11-14 2016-09-30 13F MERIT MED SYS COM 589889104 227,458 -80,984 -26.26 5,525 -9.66 0.0097
2016-08-15 2016-06-30 13F MERIT MED SYS COM 589889104 308,442 32,836 11.91 6,116 20.02 0.0113
2016-05-16 2016-03-31 13F MERIT MED SYS COM 589889104 275,606 98,354 55.49 5,096 54.66 0.0091
2016-02-16 2015-12-31 13F MERIT MED SYS COM 589889104 177,252 -263,012 -59.74 3,295 -68.70 0.0049
2015-11-16 2015-09-30 13F MERIT MED SYS COM 589889104 440,264 21,042 5.02 10,527 16.58 0.0155
2015-08-14 2015-06-30 13F MERIT MED SYS COM 589889104 419,222 214,093 104.37 9,030 128.67 0.0135
2015-05-15 2015-03-31 13F MERIT MED SYS COM 589889104 205,129 113,319 123.43 3,949 148.21 0.0060
2015-02-17 2014-12-31 13F MERIT MED SYS COM 589889104 91,810 -18,515 -16.78 1,591 0.82 0.0020
2014-05-15 2014-03-31 13F MERIT MED SYS COM 589889104 110,325 16,399 17.46 1,578 6.77 0.0023
2014-02-14 2013-12-31 13F MERIT MED SYS COM 589889104 93,926 56,991 154.30 1,478 229.91 0.0020
2013-11-20 2013-09-30 13F/A-1 MERIT MED SYS COM 589889104 36,935 5,594 17.85 448 28.37 0.0007
2013-11-14 2013-09-30 13F MERIT MED SYS COM 589889104 36,935 448
2013-08-14 2013-06-30 13F MERIT MED SYS COM 589889104 31,341 31,341 349 0.0007
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.