MICHAEL R SPLINTER
CIK 1188935 · Executive Chairman · last filed 2026-06-12
"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
$432.59M
Companies
4
Total Filings
66
Lifetime Open-Market Net
-$33.61M
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 |
|---|---|---|---|---|---|---|---|
| NDAQ | Director | 233,213 | $97.54 | $22.75M | -$884.4K | 25 | 2026-06-12 |
| TYGO | Director | 582,601 | $1.06 | $617.6K | $0 | 9 | 2026-05-20 |
| TIGO ENERGY, INC. (TYGOW) Delisted | Director | 51,304 | $0.01 | $364 | $0 | 2 | 2023-08-15 |
| AMAT | Executive Chairman | 926,158 | $441.85 | $409.22M | -$32.72M | 27 | 2015-05-27 |
Recent Filings · Page 4 of 7
66 filingsInsider 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 |
|---|---|---|---|---|---|
| 2017-05-12 | NDAQ | Grant (A) | +7,691 | $0 | EDGAR |
| 2016-05-09 | NDAQ | Grant (A) | +5,338 | $0 | EDGAR |
| 2015-05-27 | AMAT | Sell (S) | −1,000,000 | -$20.18M | EDGAR |
| 2015-05-08 | NDAQ | Grant (A) | +4,921 | $0 | EDGAR |
| 2015-04-06 | AMAT | Grant (A) | +8,980 | $0 | EDGAR |
| 2015-04-02 | AMAT | Tax (F) | −309,328 | -$6.98M | EDGAR |
| 2014-12-23 | AMAT | Mixed | −151,264 | -$13.78M | EDGAR |
| 2013-12-23 | AMAT | Mixed | −110,483 | -$1.71M | EDGAR |
| 2013-05-24 | NDAQ | Grant (A) | +6,296 | $0 | EDGAR |
| 2013-05-22 | AMAT | Mixed | −12,684 | -$1.84M | EDGAR |
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.
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.