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Michael S. Turner

CIK 1836524 · Chief Legal & Admin Officer · last filed 2025-06-18

Michael S. Turner is a Chief Legal & Admin Officer who has filed 15 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing shows the insider sold $184.8K of MASS on Jun 18, 2025. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $13.7K across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$13.7K

Companies

1

Total Filings

15

Lifetime Open-Market Net

-$1.59M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
MASS Chief Legal & Admin Officer 1,373 $10.01 $13.7K -$1.59M 14 2025-06-18

Recent Filings

15 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-06-18 MASS Sell (S) −24,603 -$184.8K EDGAR
2025-06-16 MASS Notice (144) −24,603 -$179.8K EDGAR
2025-03-05 MASS Grant (A) — $0 EDGAR
2025-02-04 MASS Mixed +15,498 -$22.5K EDGAR
2024-03-05 MASS Grant (A) — $0 EDGAR
2024-02-02 MASS Mixed +9,105 -$36.6K EDGAR
2023-03-16 MASS Grant (A) — $0 EDGAR
2023-02-03 MASS Mixed — -$43.0K EDGAR
2022-08-18 MASS Mixed — -$51.2K EDGAR
2022-08-03 MASS Mixed — -$160.5K EDGAR
Showing 1–10 of 15
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.