Mayville Engineering Co Inc
$19.36+0.2%
+$297.9M
Net Activity
+52.08% total shares
Institutions Holding
158
Popularity Rank
#3569
Avg Weight
0.18%
Total Value
$817.6M
Market Cap
$396.3M
158 institutions currently hold MEC, with 102 net buyers and 59 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
59
Net Buying Institutions
102
Top 5 by Value
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Across its top 20 institutional holders, MEC's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 6/100, avg. turnover score 40/100).
MEC ranks #3569 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
MEC is a top-conviction position for EVR Research LP — at 8.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in MEC belongs to Portolan Capital Management, LLC, but the position matters far more to EVR Research LP, who has 8.2% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Fidelity has added to its MEC position for two straight quarters, increasing it by $47.9M to reach $48.0M today.
CenterBook Partners LP has trimmed its MEC position for two straight quarters, cutting it by $3.6M while still holding $1.2M.
MEC is up 0.2% today, and institutions have been net buyers of $297.9M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
MEC reported a net loss of $17.3M over the trailing twelve months.
+$387.1M
Total Buy Value
$96.9M
Total Sell Value
102
Net Buyers
59
Net Sellers
MEC
Q2 2026
Top 5 Institutional Movers
+$47.9M
+$33.9M
+$31.7M
+$28.5M
MEC does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
4
Filings (90d)
$909K
Total Est. Value
30K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Leuba Sean P | 2026-08-06 | $26K |
| Leuba Sean P | 2026-08-06 | $309K |
| Reddy Jagadeesh A | 2026-06-11 | $531K |
| Reddy Jagadeesh A | 2026-06-08 | $43K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
0
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 13G/A | 2026-07-08 | 4.2% |
1
Filings (14d)
Mayville Engineering Company (MEC) issued a press release on August 4, 2026, reporting its financial results for the three months ended June 30, 2026. The release was furnished with this 8-K filing as Exhibit 99.1. The excerpt doesn't include specific revenue or profit figures, so it only confirms that the earnings announcement took place.
View Full Filing (SEC EDGAR)578605107
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,125
Total reported value
$257.5B
Held by 4125 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,113
Total reported value
$649.2B
Held by 4113 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,112
Total reported value
$279.5B
Held by 4112 institutions — one of the most-tracked stocks on AlphaSMO
Access MEC's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/MECCLI
npx alphasmo stocks get MEC