Heather Preston
CIK 1606826 · last filed 2026-06-29
"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
8
Total Filings
34
Lifetime Open-Market Net
$10.74M
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 |
|---|---|---|---|---|---|---|---|
| ALGS | Director | — | $4.25 | — | $0 | 3 | 2026-06-29 |
| Fusion Pharmaceuticals Inc. (FUSN) Delisted | Director | 8,823 | $21.55 | $190.1K | $150.0K | 5 | 2023-06-14 |
| Akouos, Inc. (AKUS) Delisted | Director | 1,794,088 | $13.29 | $23.84M | $5.10M | 4 | 2022-12-02 |
| Karuna Therapeutics, Inc. (KRTX) Delisted | Director | 6,556 | $329.83 | $2.16M | $420.4K | 10 | 2021-06-28 |
| Entasis Therapeutics Holdings Inc. (ETTX) Delisted | Director | 359,267 | $2.19 | $786.8K | $5.07M | 2 | 2019-06-21 |
| OTONOMY, INC. (OTIC) Delisted | Director | — | $0.08 | — | $0 | 5 | 2019-06-13 |
| ALDER BIOPHARMACEUTICALS INC (ALDR) Delisted | Director | — | — | — | $0 | 3 | 2017-05-26 |
| ALBIREO PHARMA, INC. (ALBO) Delisted | Director | — | $44.15 | — | $0 | 1 | 2017-01-25 |
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 |
|---|---|---|---|---|---|
| 2021-06-07 | Fusion Pharmaceuticals Inc. (FUSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-03-10 | Karuna Therapeutics, Inc. (KRTX) Delisted | Other (J) | +572 | $0 | EDGAR |
| 2020-09-09 | Karuna Therapeutics, Inc. (KRTX) Delisted | Buy (P) | +350 | $25.3K | EDGAR |
| 2020-07-02 | Akouos, Inc. (AKUS) Delisted | Mixed | +1,799,970 | $5.10M | EDGAR |
| 2020-07-02 | Fusion Pharmaceuticals Inc. (FUSN) Delisted | Buy (P) | +8,823 | $150.0K | EDGAR |
| 2020-06-30 | Fusion Pharmaceuticals Inc. (FUSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-06-08 | Karuna Therapeutics, Inc. (KRTX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-03-12 | Karuna Therapeutics, Inc. (KRTX) Delisted | Buy (P) | +3,050 | $227.0K | EDGAR |
| 2020-01-10 | Karuna Therapeutics, Inc. (KRTX) Delisted | Buy (P) | +788 | $55.6K | EDGAR |
| 2020-01-07 | Karuna Therapeutics, Inc. (KRTX) Delisted | Buy (P) | +1,427 | $99.6K | 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.