YASUNORI KANEKO
CIK 1277503 · 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.
Loading insider history…
Disclosed Exposure
$164.73M
Companies
8
Total Filings
19
Lifetime Open-Market Net
$56.13M
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 |
|---|---|---|---|---|---|---|---|
| RCUS | Director | 530,750 | $28.72 | $15.24M | $330.9K | 11 | 2026-06-12 |
| SIBN | 10%+ Owner | 3,696,309 | $18.84 | $69.64M | $19.50M | 1 | 2018-10-19 |
| STRO | 10%+ Owner | 144,584 | $25.53 | $3.69M | $0 | 1 | 2018-10-03 |
| ESPR | 10%+ Owner | 270 | $3.18 | $859 | $0 | 1 | 2017-12-07 |
| COLL | 10%+ Owner | 2,799,916 | $27.20 | $76.16M | $5.40M | 1 | 2015-05-13 |
| TETRAPHASE PHARMACEUTICALS INC (TTPH) Delisted | 10%+ Owner | 94,507 | — | — | $0 | 1 | 2014-03-14 |
| TALPHERA, INC. (ACRX) Delisted | 10%+ Owner | 143,597 | $0.86 | $123.5K | $30.90M | 2 | 2014-03-11 |
| Targanta Therapeutics Corp. (ITMN) Delisted | 10%+ Owner | 0 | — | — | $0 | 1 | 2009-02-27 |
Recent Filings · Page 2 of 2
19 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 |
|---|---|---|---|---|---|
| 2018-10-19 | SIBN | Mixed | +17,679,940 | $19.50M | EDGAR |
| 2018-10-03 | STRO | Conv (C) | +5,880,159 | $0 | EDGAR |
| 2018-03-19 | RCUS | Conv (C) | +791,392 | $0 | EDGAR |
| 2017-12-07 | ESPR | Other (J) | −799,730 | $0 | EDGAR |
| 2015-05-13 | COLL | Mixed | +8,849,748 | $5.40M | EDGAR |
| 2014-03-14 | TETRAPHASE PHARMACEUTICALS INC (TTPH) Delisted | Other (J) | −1,182,028 | $0 | EDGAR |
| 2014-03-11 | TALPHERA, INC. (ACRX) Delisted | Other (J) | −5,200,000 | $0 | EDGAR |
| 2011-02-18 | TALPHERA, INC. (ACRX) Delisted | Mixed | +19,436,175 | $30.90M | EDGAR |
| 2009-02-27 | Targanta Therapeutics Corp. (ITMN) Delisted | U | −15,525,356 | $0 | EDGAR |
Showing 11–19 of 19
Prev
Page 2 of 2
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.