Nichtberger Steven — SEC Form 4 filings
SEC reporting owner CIK 1487989. 5 Form 4 filings on record with FilingPulse; latest filed 2026-03-02.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2024-03-04 to 2026-03-02. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 45,000 shares, $100,778 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 15.
- Largest priced transaction: purchase of 45,000 shares @ $2.24 ($100,778) in Cabaletta Bio, Inc., filed 2026-01-21.
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 |
|---|---|---|---|---|---|
| Cabaletta Bio, Inc. (CABA) | President & CEO, Director | 5 | 1 leg · 45,000 sh · $100,778 | — | 15 |
Form 4 filings — Nichtberger Steven
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-03-02 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 674,000 (derivative) @ $0 | EDGAR |
| 2026-01-21 | 4 | Cabaletta Bio, Inc. (CABA) | Purchase (P): 45,000 @ $2.24 | EDGAR |
| 2025-05-19 | 4 | Cabaletta Bio, Inc. (CABA) | Disposition to issuer (D): 99,714 (derivative) @ $0 · Grant/award (A): 99,714 (derivative) @ $0 · Disposition to issuer (D): 300,000 (derivative) @ $0 · Grant/award (A): 300,000 (derivative) @ $0 · Disposition to issuer (D): 333,500 (derivative) @ $0 · Grant/award (A): 333,500 (derivative) @ $0 · +6 more | EDGAR |
| 2025-03-04 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 450,000 (derivative) @ $0 | EDGAR |
| 2024-03-04 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 353,000 (derivative) @ $0 | 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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