Katharine Knobil
CIK 1768011 · Chief Medical Officer · last filed 2026-06-11
"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
$0
Companies
5
Total Filings
19
Lifetime Open-Market Net
$0
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 |
|---|---|---|---|---|---|---|---|
| KRRO | Director | — | $11.61 | — | $0 | 3 | 2026-06-11 |
| MRKR | Director | — | $1.38 | — | $0 | 5 | 2025-11-19 |
| PLRX | Director | — | $1.13 | — | $0 | 4 | 2025-06-09 |
| ARENA PHARMACEUTICALS INC (ARNA) Delisted | Director | 0 | $99.99 | $0 | $0 | 3 | 2022-03-11 |
| Kaleido Biosciences, Inc. (KLDO) Delisted | Chief Medical Officer | — | $0.29 | — | $0 | 4 | 2020-10-19 |
Recent Filings · Page 2 of 2
19 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-05-26 | MRKR | Grant (A) | — | $0 | EDGAR |
| 2022-03-11 | ARENA PHARMACEUTICALS INC (ARNA) Delisted | Mixed | −6,821 | $0 | EDGAR |
| 2021-12-09 | MRKR | Grant (A) | — | $0 | EDGAR |
| 2021-06-15 | ARENA PHARMACEUTICALS INC (ARNA) Delisted | Grant (A) | +3,067 | $0 | EDGAR |
| 2020-10-19 | Kaleido Biosciences, Inc. (KLDO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-06-16 | ARENA PHARMACEUTICALS INC (ARNA) Delisted | Grant (A) | +3,669 | $0 | EDGAR |
| 2020-04-17 | Kaleido Biosciences, Inc. (KLDO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-03-03 | Kaleido Biosciences, Inc. (KLDO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-11-18 | Kaleido Biosciences, Inc. (KLDO) Delisted | Grant (A) | — | $0 | EDGAR |
Showing 11–19 of 19
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Page 2 of 2
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.