Tadataka Yamada
CIK 1402530 · last filed 2021-06-01
"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
$8.35M
Companies
6
Total Filings
34
Lifetime Open-Market Net
$117.0K
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 |
|---|---|---|---|---|---|---|---|
| LeonaBio, Inc. (ATHA) Delisted | Director | — | $6.92 | — | $0 | 1 | 2021-06-01 |
| PASG | Director | 32,807 | $4.57 | $149.9K | $117.0K | 3 | 2021-05-28 |
| PHAT | Director | — | $11.66 | — | $0 | 2 | 2021-05-24 |
| Prometheus Biosciences, Inc. (RXDX) Delisted | Director | 13,333 | $199.92 | $2.67M | $0 | 1 | 2021-03-16 |
| A | Director | 58,374 | $140.54 | $8.20M | $0 | 12 | 2020-08-05 |
| Covidien plc (COV) Delisted | Director | 13,056 | — | — | $0 | 15 | 2011-03-17 |
Recent Filings · Page 2 of 4
34 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 |
|---|---|---|---|---|---|
| 2018-03-23 | A | Grant (A) | +4,601 | $310.5K | EDGAR |
| 2017-03-17 | A | Grant (A) | +6,185 | $328.2K | EDGAR |
| 2016-03-18 | A | Grant (A) | +7,056 | $277.2K | EDGAR |
| 2015-03-20 | A | Grant (A) | +6,466 | $273.0K | EDGAR |
| 2014-03-21 | A | Grant (A) | +4,737 | $268.6K | EDGAR |
| 2013-03-25 | A | Grant (A) | +6,375 | $265.5K | EDGAR |
| 2012-03-26 | A | Grant (A) | +4,079 | $178.3K | EDGAR |
| 2011-03-17 | Covidien plc (COV) Delisted | Mixed | +368 | -$116.2K | EDGAR |
| 2011-03-04 | A | Grant (A) | +3,619 | $150.0K | EDGAR |
| 2011-02-23 | Covidien plc (COV) Delisted | Grant (A) | +11 | $0 | 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.