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D. E. Shaw & Co., Inc.

Position in MLAB — Mesa Laboratories Inc /Co/

CIK 1009207 New York, NY

Position in MLAB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$8,138,710
+$3,314,692 QoQ
Shares Held
81,755
+49.8% QoQ
Ownership
1.46%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#20
of 158 holders
Holding Since
Jun 2023
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MLAB Over Time

Shares Held

Position Value (USD)

Position in Scientific & Technical Instruments

Technology · as of Jun 30, 2026

D. E. Shaw & Co., Inc. holds $1,061,194,303 across 15 Scientific & Technical Instruments names. MLAB ranks #10 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MLAB

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $8,138,710 81,755
2026-03-31 $4,824,018 54,558
2025-12-31 $6,010,352 76,565
2025-09-30 $2,198,665 32,811
2025-06-30 $816,416 8,665
2024-03-31 $436,615 3,979
2023-12-31 $620,447 5,922
2023-09-30 $441,924 4,206
2023-06-30 $335,899 2,614