Granahan Investment Management, LLC
Position in MEC — Mayville Engineering Company, Inc.
CIK 1026710
WALTHAM, MA
Position in MEC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$12,141,085
+$5,185,999 QoQ
Shares Held
324,108
-16.4% QoQ
Ownership
1.27%
of shares outstanding
% of Portfolio
0.43%
of 13F equity value
Holder Rank
#21
of 154 holders
Holding Since
Sep 2023
12 quarters on record
Voting authority
Sole 92%
Shared 0%
None 8%
Common Shares in MEC Over Time
Shares Held
Position Value (USD)
Position in Metal Fabrication
Industrials · as of Jun 30, 2026Granahan Investment Management, LLC holds $71,962,845 across 2 Metal Fabrication names. MEC ranks #2 (16.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRS |
Carpenter Technology Corp
|
96,981 | $59,821,760 | |
| 2 | MEC |
Mayville Engineering Company, Inc.
This page
|
324,108 | $12,141,085 |
All Filings in MEC
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12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,141,085 | 324,108 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $6,955,086 | 387,470 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $5,012,504 | 267,762 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $4,805,913 | 349,267 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $7,952,947 | 498,305 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $6,420,050 | 478,038 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $9,101,361 | 578,967 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $7,129,572 | 338,215 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $5,405,070 | 324,434 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $2,737,932 | 191,063 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $2,080,488 | 144,278 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $168,213 | 15,334 | Shares | Sole | 2023-11-14 | |
| No filing history on record for this holder in this stock. | ||||||