Tadataka Yamada
CIK 1402530 · last filed 2021-06-01
Tadataka Yamada is a corporate insider who has filed 34 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for ATHA, was dated Jun 1, 2021. Across all open-market trades the lifetime net is +$117.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $10.4M across reported positions. 13 SEC filings were submitted jointly with AGILENT TECHNOLOGIES INC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
PASG price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
15 HAMPSHIRE STREET
MANSFIELD, MA 02048
Holdings By Company
| 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 | $3.36 | $110.2K | $117.0K | 3 | 2021-05-28 |
| PHAT | Director | — | $5.94 | — | $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 | $175.96 | $10.27M | $0 | 12 | 2020-08-05 |
| Covidien plc (COV) Delisted | Director | 13,056 | — | — | $0 | 15 | 2011-03-17 |
Recent Filings
34 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-06-01 | LeonaBio, Inc. (ATHA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-05-28 | PASG | Grant (A) | — | $0 | EDGAR |
| 2021-05-24 | PHAT | Grant (A) | — | $0 | EDGAR |
| 2021-03-16 | Prometheus Biosciences, Inc. (RXDX) Delisted | Conv (C) | +13,333 | $0 | EDGAR |
| 2020-08-05 | A | Grant (A) | +212 | $19.9K | EDGAR |
| 2020-05-22 | PHAT | Grant (A) | — | $0 | EDGAR |
| 2020-04-21 | A | Grant (A) | +4,313 | $314.9K | EDGAR |
| 2020-03-03 | PASG | Buy (P) | +6,500 | $117.0K | EDGAR |
| 2020-03-02 | PASG | Grant (A) | — | $0 | EDGAR |
| 2019-03-22 | A | Grant (A) | +4,328 | $355.0K | EDGAR |
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.