Ticker · CUSIP 596680108
Holders (tracked)
7
Combined shares
237,441
Combined value
$10.57M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
14 events
- Ken Griffin (Citadel Advisors) added2026-02-17+1,064 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−25,390 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−21,493 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−56,463 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) exited2026-02-17−14,958 shares · 2025Q413F
- T. Rowe Price added2026-02-17+3,619 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−85,800 shares · 2025Q413F
- AQR Capital Management added2025-11-14+32,615 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−2,252 shares · 2025Q313F
- Steve Cohen (Point72) exited2025-11-14−3,200 shares · 2025Q313F
- Two Sigma Investments opened position2025-11-14+25,593 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+3,423 shares · 2025Q313F
- T. Rowe Price added2025-11-14+1,746 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+12,100 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Ken Griffin (Citadel Advisors)+1,064$54K
- T. Rowe Price+3,619$183
Trimmed4
- Renaissance Technologies−85,800$4.3M
- D.E. Shaw & Co.−56,463$2.8M
- AQR Capital Management−25,390$1.3M
- Two Sigma Investments−21,493$1.1M
Exited1
- Izzy Englander (Millennium Mgmt)−14,958$810K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 6 | $402.1M |
| 2022Q2 | 9 | $274.9M |
| 2022Q3 | 8 | $231K |
| 2022Q4 | 11 | $212.9M |
| 2023Q1 | 11 | $210.1M |
| 2023Q2 | 8 | $263.1M |
| 2023Q3 | 7 | $215.4M |
| 2023Q4 | 8 | $218.4M |
| 2024Q1 | 8 | $183.1M |
| 2024Q2 | 9 | $194.9M |
| 2024Q3 | 6 | $14.8M |
| 2024Q4 | 9 | $14.4M |
| 2025Q1 | 8 | $22.0M |
| 2025Q2 | 8 | $17.9M |
| 2025Q3 | 8 | $22.0M |
| 2025Q4 | 7 | $10.6M |
Who owns MSEX
7 super-investors · 2025Q4
Tracked stake
237.4K
shares
Combined value
$11M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 129.2K | $7M |
| 2 | AQR Capital Management | 22.6K | $1M |
| 3 | D.E. Shaw & Co. | 20.3K | $1M |
| 4 | Ken Griffin Citadel Advisors | 19.5K | $983K |
| 5 | Ken Griffin Citadel Advisors | 13.9K | $700K |
| 6 | Two Sigma Investments | 4.1K | $207K |
| 7 | T. Rowe Price | 27.9K | $1K |
Recent moves
20 transactions
- −25,390 · 2025Q4
- −14,958 · 2025Q4
- +3,619 · 2025Q4
- +1,064 · 2025Q4
- TRIMD.E. Shaw & Co.−56,463 · 2025Q4
- −21,493 · 2025Q4
- −85,800 · 2025Q4
- +32,615 · 2025Q3
- +25,593 · 2025Q3
- −3,200 · 2025Q3
- +1,746 · 2025Q3
- −2,252 · 2025Q3
- +3,423 · 2025Q3
- +12,100 · 2025Q3
- +2,224 · 2025Q2
- +3,200 · 2025Q2
- −37,166 · 2025Q2
- +969 · 2025Q2
- +10,711 · 2025Q2
- +22,500 · 2025Q2
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