Everspin Technologies, Inc.
Everspin Technologies, Inc. (MRAM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MRAM · as of Sep 30, 2025
Ownership Breakdown
78
Institutional Holders
▲ 3 vs Q2
$100.08M
Total Inst. Value
▲ $34.12M vs Q2
23.45M
Shares Outstanding
freeFloat 79.23%
10.76M
13F Shares Held
▲ 268,888 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MRAM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
AWM INVESTMENT COMPANY, INC. semiconductors & related devices | 2.13M | 9.45% | 9.45% | $19.80B | Nov 13, 2025 | — held |
LYNROCK LAKE LP semiconductors & related devices | 1.86M | 8.27% | 8.27% | $17.33B | Nov 14, 2025 | — held |
VANGUARD GROUP INC semiconductors & related devices | 908.4K | 4.04% | 4.04% | $8.46B | Nov 7, 2025 | — held |
HERALD INVESTMENT MANAGEMENT LTD semiconductors & related devices | 800.0K | 3.55% | 3.55% | $7.42B | Nov 7, 2025 | NEW |
ACADIAN ASSET MANAGEMENT LLC semiconductors & related devices | 746.0K | 3.31% | 3.31% | $6.94B | Nov 13, 2025 | ▲ 100.7K |
D. E. SHAW & CO., INC. semiconductors & related devices | 515.2K | 2.29% | 2.29% | $4.80B | Nov 14, 2025 | ▲ 8.4K |
BLACKROCK, INC. semiconductors & related devices | 449.0K | 2.00% | 2.00% | $4.18B | Nov 12, 2025 | ▼ 155.9K |
DIMENSIONAL FUND ADVISORS LP semiconductors & related devices | 405.6K | 1.80% | 1.80% | $3.78B | Nov 12, 2025 | ▼ 16.4K |
MILLENNIUM MANAGEMENT LLC semiconductors & related devices | 287.4K | 1.28% | 1.28% | $2.68B | Nov 14, 2025 | ▼ 37.2K |
MARSHALL WACE, LLP semiconductors & related devices | 282.7K | 1.26% | 1.26% | $2.63B | Nov 13, 2025 | ▲ 168.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
16
Increased
+673.6K shares11
New Positions
first time holders16
Decreased
−375.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+297.8K
+673.6K / −375.8K
Net new holders
+11
11 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MRAM insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
13
Buy transactions
20
Sell transactions
0.65
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
FINCH LAWRENCE G director | May 29, 2026 | Sale | 267,730 | $26.40 | $7.07M | 172.8K | Form 4 ↗ |
FINCH LAWRENCE G director | May 29, 2026 | Sale | 400 | $27.03 | $10.8K | 172.4K | Form 4 ↗ |
FINCH LAWRENCE G director | May 11, 2026 | Sale | 41,961 | $34.29 | $1.44M | 0 | Form 4 ↗ |
RIBAR GEOFFREY G director | May 21, 2026 | Award | 3,852 | — | — | 97.9K | Form 4 ↗ |
MITCHELL DOUGLAS M director | May 21, 2026 | Award | 3,852 | — | — | 32.1K | Form 4 ↗ |
Long Tara director | May 21, 2026 | Award | 3,852 | — | — | 84.5K | Form 4 ↗ |
HAWK GLEN director | May 21, 2026 | Award | 3,852 | — | — | 43.4K | Form 4 ↗ |
FINCH LAWRENCE G director | May 21, 2026 | Award | 3,852 | — | — | 440.5K | Form 4 ↗ |
Billerbeck Darin G director | May 21, 2026 | Award | 3,852 | — | — | 127.9K | Form 4 ↗ |
RIBAR GEOFFREY G director | May 20, 2026 | Sale | 27,488 | $28.87 | $793.6K | 94.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Everspin Technologies, Inc. (MRAM) is primarily owned by institutional investors, who hold approximately 45.9% of total shares outstanding. Company insiders own approximately 20.77%, while retail and public investors account for the remaining 33.36%.
The largest institutional shareholder of Everspin Technologies, Inc. is AWM INVESTMENT COMPANY, INC., holding approximately 2.13 million shares — equal to 9.45% of outstanding shares — as of September 30, 2025.
A total of 78 institutional investors currently hold MRAM stock, with a combined institutional value of approximately $100,075,023 as of the most recent 13F filing period.
Frequently asked questions
MRAM ownershipEverspin Technologies, Inc. (MRAM) is primarily owned by institutional investors, who hold approximately 45.9% of shares. The largest shareholder is AWM INVESTMENT COMPANY, INC. with a 9.45% stake. Company insiders hold 20.77%. Data sourced from SEC Form 13F as of September 30, 2025.