Bonstein Sara — SEC Form 4 filings
SEC reporting owner CIK 1604019. 25 Form 4 filings on record with FilingPulse; latest filed 2026-06-12.
Transaction summary — filings shown
Covers all 25 filings on record, filed 2024-01-11 to 2026-06-12. 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): 33 legs across 17 filings — 587,750 shares, $43,617,825 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 66.
- Largest priced transaction: sale of 220,564 shares @ $50.00 ($11,028,200) in INSMED Inc, filed 2024-05-30.
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 |
|---|---|---|---|---|---|
| INSMED Inc (INSM) | Chief Financial Officer | 19 | — | 33 legs · 587,750 sh · $43,617,825 | 58 |
| scPharmaceuticals Inc. (SCPH) | Director | 3 | — | — | 5 |
| Xilio Therapeutics, Inc. (XLO) | Director | 3 | — | — | 3 |
Form 4 filings — Bonstein Sara
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-12 | 4 | Xilio Therapeutics, Inc. (XLO) | Grant/award (A): 5,000 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | INSMED Inc (INSM) | Sale (S): 2,404 @ $102.27 | EDGAR |
| 2026-05-15 | 4 | INSMED Inc (INSM) | Sale (S): 8,272 @ $116.18 | EDGAR |
| 2026-02-04 | 4 | INSMED Inc (INSM) | Sale (S): 748 @ $156.34 | EDGAR |
| 2026-01-08 | 4 | INSMED Inc (INSM) | Sale (S): 1,517 @ $173.33 · Sale (S): 1,678 @ $175.07 · Sale (S): 1,447 @ $174.17 | EDGAR |
| 2026-01-06 | 4 | INSMED Inc (INSM) | Grant/award (A): 5,998 · Grant/award (A): 5,645 · Grant/award (A): 31,280 (derivative) @ $0 | EDGAR |
| 2025-10-07 | 4 | scPharmaceuticals Inc. (SCPH) | Disposition to issuer (D): 30,000 (derivative) @ $0 · Disposition to issuer (D): 19,750 (derivative) @ $0 · Disposition to issuer (D): 16,300 (derivative) @ $0 | EDGAR |
| 2025-07-23 | 4 | INSMED Inc (INSM) | Option exercise (M): 3,443 @ $26.46 · Option exercise (M): 11,455 @ $28.88 · Option exercise (M): 15,890 @ $29.13 · Option exercise (M): 17,100 @ $34.03 · Sale (S): 32,090 @ $102.38 · Sale (S): 26,310 @ $103.03 · +4 more | EDGAR |
| 2025-07-09 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,244 @ $19.74 · Option exercise (M): 4,362 @ $24.70 · Option exercise (M): 23,565 @ $26.43 · Option exercise (M): 13,717 @ $26.46 · Sale (S): 35,583 @ $95.66 · Sale (S): 22,181 @ $96.19 · +4 more | EDGAR |
| 2025-06-25 | 4 | INSMED Inc (INSM) | Option exercise (M): 35,253 @ $18.95 · Option exercise (M): 12,636 @ $19.74 · Sale (S): 49,104 @ $101.71 · Sale (S): 8,661 @ $102.15 · Option exercise (M): 35,253 (derivative) @ $0 · Option exercise (M): 12,636 (derivative) @ $0 | EDGAR |
| 2025-06-12 | 4 | INSMED Inc (INSM) | Option exercise (M): 24,150 @ $18.95 · Option exercise (M): 23,740 @ $17.07 · Sale (S): 7,277 @ $87.12 · Sale (S): 7,310 @ $88.29 · Sale (S): 20,926 @ $88.99 · Sale (S): 15,825 @ $89.85 · +4 more | EDGAR |
| 2025-06-12 | 4 | Xilio Therapeutics, Inc. (XLO) | Grant/award (A): 31,000 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | scPharmaceuticals Inc. (SCPH) | Grant/award (A): 30,000 (derivative) @ $0 | EDGAR |
| 2025-06-04 | 4 | INSMED Inc (INSM) | Sale (S): 1,579 @ $71.50 | EDGAR |
| 2025-05-19 | 4 | INSMED Inc (INSM) | Grant/award (A): 6,508 @ $0 · Grant/award (A): 31,610 (derivative) @ $0 | EDGAR |
| 2025-05-15 | 4 | INSMED Inc (INSM) | Sale (S): 8,870 @ $67.81 · Sale (S): 1,634 @ $65.61 | EDGAR |
| 2025-02-20 | 4 | INSMED Inc (INSM) | Sale (S): 17,622 @ $80.28 · Sale (S): 700 @ $81 | EDGAR |
| 2025-02-13 | 4 | INSMED Inc (INSM) | Sale (S): 13,302 @ $80 · Sale (S): 5,019 @ $80 | EDGAR |
| 2025-02-07 | 4 | INSMED Inc (INSM) | Grant/award (A): 65,033 @ $0 · Sale (S): 28,390 @ $80.90 | EDGAR |
| 2025-01-10 | 4 | INSMED Inc (INSM) | Sale (S): 3,470 @ $65.70 · Sale (S): 1,464 @ $66.05 · Grant/award (A): 6,657 · Sale (S): 1,066 @ $63.72 · Grant/award (A): 31,930 (derivative) @ $0 | EDGAR |
| 2024-06-17 | 4 | Xilio Therapeutics, Inc. (XLO) | Grant/award (A): 25,000 (derivative) @ $0 | EDGAR |
| 2024-06-13 | 4 | scPharmaceuticals Inc. (SCPH) | Grant/award (A): 19,750 (derivative) @ $0 | EDGAR |
| 2024-05-30 | 4 | INSMED Inc (INSM) | Option exercise (M): 3,454 @ $28.88 · Option exercise (M): 76,731 @ $28.88 · Option exercise (M): 3,454 @ $24.70 · Option exercise (M): 27,074 @ $24.70 · Option exercise (M): 3,454 @ $34.03 · Option exercise (M): 25,046 @ $34.03 · +20 more | EDGAR |
| 2024-05-15 | 4 | INSMED Inc (INSM) | Grant/award (A): 14,518 · Sale (S): 11,088 @ $25.32 · Grant/award (A): 71,160 (derivative) @ $0 | EDGAR |
| 2024-01-11 | 4 | INSMED Inc (INSM) | Sale (S): 4,497 @ $29.18 | 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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