Barton Russell — SEC Form 4 filings
SEC reporting owner CIK 1867418. 7 Form 4 filings on record with FilingPulse; latest filed 2026-01-23.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-01-19 to 2026-01-23. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 9 legs across 6 filings — 29,008 shares, $59,390 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 4.
- Largest priced transaction: sale of 7,636 shares @ $1.86 ($14,225) in Acumen Pharmaceuticals, Inc., filed 2025-01-07.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | 7 | — | 9 legs · 29,008 sh · $59,390 | 4 |
Form 4 filings — Barton Russell
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-01-23 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 2,315 @ $1.81 · Sale (S): 462 @ $1.84 | EDGAR |
| 2026-01-21 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Grant/award (A): 84,600 @ $0 · Grant/award (A): 126,900 (derivative) @ $0 | EDGAR |
| 2026-01-12 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 3,530 @ $1.86 | EDGAR |
| 2026-01-07 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 4,000 @ $1.96 · Sale (S): 3,618 @ $1.97 · Sale (S): 1,700 @ $1.99 | EDGAR |
| 2025-01-23 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 2,914 @ $1.61 | EDGAR |
| 2025-01-07 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 7,636 @ $1.86 · Grant/award (A): 49,800 @ $0 · Grant/award (A): 74,700 (derivative) @ $0 | EDGAR |
| 2024-01-19 | 4 | Acumen Pharmaceuticals, Inc. (ABOS) | Sale (S): 2,833 @ $3.73 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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