Rajavelu Esther — SEC Form 4 filings
SEC reporting owner CIK 1903716. 8 Form 4 filings on record with FilingPulse; latest filed 2026-05-06.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2024-02-05 to 2026-05-06. 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): 8 legs across 6 filings — 233,154 shares, $475,995 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: sale of 50,816 shares @ $2.36 ($119,926) in Spero Therapeutics, Inc., filed 2026-02-09.
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 |
|---|---|---|---|---|---|
| Spero Therapeutics, Inc. (SPRO) | See Remarks | 8 | — | 8 legs · 233,154 sh · $475,995 | 6 |
Form 4 filings — Rajavelu Esther
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-06 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 25,240 @ $2.51 | EDGAR |
| 2026-02-09 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 37,101 @ $2.36 · Sale (S): 50,816 @ $2.36 | EDGAR |
| 2026-02-04 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 249,000 @ $0 · Sale (S): 18,442 @ $2.20 · Grant/award (A): 498,000 (derivative) @ $0 | EDGAR |
| 2025-11-12 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 40,270 @ $2.37 | EDGAR |
| 2025-05-06 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 185,000 @ $0 | EDGAR |
| 2025-02-05 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 266,139 @ $0 · Grant/award (A): 100,000 @ $0 · Sale (S): 20,689 @ $0.78 | EDGAR |
| 2024-11-12 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 23,351 @ $1.31 · Sale (S): 17,245 @ $1.30 | EDGAR |
| 2024-02-05 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 119,866 @ $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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