LeMaitre Vascular, Inc.
DE ˙ DB ˙ US5255582018
80,00 € ↑1,50 (1,91%)
2026-06-05
DEL PRIS
SecurityDE:LHU / LeMaitre Vascular, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership138,502 shares
Latest Disclosed Value $ 15,120,263
Renaissance Technologies Llc reports 23.27% decrease in ownership of LHU / LeMaitre Vascular, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 138,502 shares of LeMaitre Vascular, Inc. (DE:LHU) valued at $12,949,937 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 180,502 shares of LeMaitre Vascular, Inc.. This represents a change in shares of -23.27% during the quarter. The current value of the position is $11,080,160 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 LEMAITRE VASCULAR COM 525558201 138,502 -42,000 -23.27 15,120 3.29 0.0237
2026-02-12 2025-12-31 13F LEMAITRE VASCULAR COM 525558201 180,502 -100 -0.06 14,639 -7.38 0.0227
2025-11-13 2025-09-30 13F LEMAITRE VASCULAR COM 525558201 180,602 21,902 13.80 15,804 19.91 0.0209
2025-08-13 2025-06-30 13F LEMAITRE VASCULAR COM 525558201 158,700 4,400 2.85 13,180 1.82 0.0175
2025-05-14 2025-03-31 13F LEMAITRE VASCULAR COM 525558201 154,300 -9,500 -5.80 12,946 -14.23 0.0196
2025-02-13 2024-12-31 13F LEMAITRE VASCULAR COM 525558201 163,800 1,300 0.80 15,093 -0.01 0.0223
2024-11-13 2024-09-30 13F LEMAITRE VASCULAR COM 525558201 162,500 22,400 15.99 15,095 30.94 0.0227
2024-08-09 2024-06-30 13F LEMAITRE VASCULAR COM 525558201 140,100 4,164 3.06 11,527 127,977.78 0.0196
2024-05-13 2024-03-31 13F LEMAITRE VASCULAR COM 525558201 135,936 21,936 19.24 9 50.00 0.0142
2024-02-13 2023-12-31 13F LEMAITRE VASCULAR COM 525558201 114,000 22,200 24.18 6 20.00 0.0100
2023-11-14 2023-09-30 13F LEMAITRE VASCULAR COM 525558201 91,800 16,100 21.27 5 0.00 0.0085
2023-08-11 2023-06-30 13F LEMAITRE VASCULAR COM 525558201 75,700 15,600 25.96 5 66.67 0.0073
2023-05-12 2023-03-31 13F LEMAITRE VASCULAR COM 525558201 60,100 7,700 14.69 3 50.00 0.0041
2023-02-13 2022-12-31 13F LEMAITRE VASCULAR COM 525558201 52,400 -500 -0.95 2 -99.93 0.0033
2022-11-14 2022-09-30 13F LEMAITRE VASCULAR COM 525558201 52,900 -4,100 -7.19 2,681 3.27 0.0038
2022-08-12 2022-06-30 13F LEMAITRE VASCULAR COM 525558201 57,000 -3,300 -5.47 2,596 -7.35 0.0031
2022-05-13 2022-03-31 13F LEMAITRE VASCULAR COM 525558201 60,300 -6,000 -9.05 2,802 -15.86 0.0033
2022-02-11 2021-12-31 13F LEMAITRE VASCULAR COM 525558201 66,300 -37,200 -35.94 3,330 -39.40 0.0041
2021-11-12 2021-09-30 13F LEMAITRE VASCULAR COM 525558201 103,500 57,261 123.84 5,495 94.72 0.0071
2021-08-13 2021-06-30 13F LEMAITRE VASCULAR COM 525558201 46,239 -17,261 -27.18 2,822 -8.91 0.0035
2021-05-13 2021-03-31 13F LEMAITRE VASCULAR COM 525558201 63,500 -26,100 -29.13 3,098 -14.63 0.0039
2021-02-10 2020-12-31 13F LEMAITRE VASCULAR COM 525558201 89,600 89,600 3,629 0.0039
2020-11-13 2020-09-30 13F LEMAITRE VASCULAR COM 525558201 0 -29,800 -100.00 0 -100.00
2020-08-13 2020-06-30 13F LEMAITRE VASCULAR COM 525558201 29,800 -14,000 -31.96 787 -27.86 0.0007
2020-05-14 2020-03-31 13F LEMAITRE VASCULAR COM 525558201 43,800 -22,800 -34.23 1,091 -54.43 0.0011
2020-02-13 2019-12-31 13F LEMAITRE VASCULAR COM 525558201 66,600 500 0.76 2,394 5.98 0.0018
2019-11-13 2019-09-30 13F LEMAITRE VASCULAR COM 525558201 66,100 2,500 3.93 2,259 26.91 0.0019
2019-08-12 2019-06-30 13F LEMAITRE VASCULAR COM 525558201 63,600 63,600 1,780 0.0016
2019-05-14 2019-03-31 13F LEMAITRE VASCULAR COM 525558201 0 -10,193 -100.00 0 -100.00
2019-02-12 2018-12-31 13F LEMAITRE VASCULAR COM 525558201 10,193 -15,207 -59.87 241 -75.51 0.0003
2018-11-13 2018-09-30 13F LEMAITRE VASCULAR COM 525558201 25,400 -37,500 -59.62 984 -53.28 0.0010
2018-08-13 2018-06-30 13F/A-1 LEMAITRE VASCULAR COM 525558201 62,900 -44,400 -41.38 2,106 -45.82 0.0023
2018-08-13 2018-06-30 13F LEMAITRE VASCULAR COM 525558201 107,300 3,887
2018-05-14 2018-03-31 13F LEMAITRE VASCULAR COM 525558201 107,300 -49,700 -31.66 3,887 -22.24 0.0043
2018-02-13 2017-12-31 13F LEMAITRE VASCULAR COM 525558201 157,000 -95,600 -37.85 4,999 -47.11 0.0055
2017-11-13 2017-09-30 13F LEMAITRE VASCULAR COM 525558201 252,600 -62,000 -19.71 9,452 -3.77 0.0111
2017-08-11 2017-06-30 13F LEMAITRE VASCULAR COM 525558201 314,600 131,300 71.63 9,822 117.54 0.0125
2017-05-12 2017-03-31 13F LEMAITRE VASCULAR COM 525558201 183,300 64,200 53.90 4,515 49.60 0.0063
2017-02-13 2016-12-31 13F LEMAITRE VASCULAR COM 525558201 119,100 -64,400 -35.10 3,018 -17.11 0.0048
2016-11-14 2016-09-30 13F LEMAITRE VASCULAR COM 525558201 183,500 84,200 84.79 3,641 156.95 0.0064
2016-08-12 2016-06-30 13F LEMAITRE VASCULAR COM 525558201 99,300 -25,300 -20.30 1,417 -26.73 0.0027
2016-05-13 2016-03-31 13F LEMAITRE VASCULAR COM 525558201 124,600 800 0.65 1,934 -9.46 0.0037
2016-02-11 2015-12-31 13F LEMAITRE VASCULAR COM 525558201 123,800 6,900 5.90 2,136 49.89 0.0047
2015-11-12 2015-09-30 13F LEMAITRE VASCULAR COM 525558201 116,900 41,300 54.63 1,425 56.25 0.0034
2015-08-14 2015-06-30 13F LEMAITRE VASCULAR COM 525558201 75,600 23,000 43.73 912 106.80 0.0021
2015-05-13 2015-03-31 13F LEMAITRE VASCULAR COM 525558201 52,600 9,537 22.15 441 34.04 0.0009
2015-02-13 2014-12-31 13F LEMAITRE VASCULAR COM 525558201 43,063 15,663 57.16 329 74.07 0.0008
2014-11-12 2014-09-30 13F LEMAITRE VASCULAR COM 525558201 27,400 7,138 35.23 189 12.50 0.0005
2014-08-13 2014-06-30 13F LEMAITRE VASCULAR COM 525558201 20,262 6,984 52.60 168 57.01 0.0004
2014-05-14 2014-03-31 13F LEMAITRE VASCULAR COM 525558201 13,278 13,278 107 0.0003
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.