Bornstein Jeffrey S insider trades
Bornstein Jeffrey S has filed 18 Form 4s with the SEC that we hold, for Eos Energy Enterprises, Inc. (EOSE) (Director) and Kalaris Therapeutics, Inc. (ALVR) (Director). Across all of them we count 3 purchases worth $93.5K and 4 sales worth $1.0M reported on Form 4. In the last 12 months: 0 purchases ($0) and 2 sales ($612.5K). The largest single trade was a sale of 32,328 shares of Eos Energy Enterprises, Inc. worth $486.5K, dated 2025-12-05. The first filing on our record is dated 2022-02-10 and the latest 2026-08-06.
Eos Energy Enterprises, Inc. (EOSE)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-11-10 | P, purchase reported on Form 4 | 20,000 | $26.0K | 2022-11-14 |
| 2024-09-12 | S, sale reported on Form 4 | 30,000 | $78.6K | 2024-09-16 |
| 2024-09-12 | S, sale reported on Form 4 | 132,720 | $349.1K | 2024-09-16 |
| 2025-12-04 | S, sale reported on Form 4 | 8,000 | $126.0K | 2025-12-08 |
| 2025-12-05 | S, sale reported on Form 4 | 32,328 | $486.5K | 2025-12-08 |
Kalaris Therapeutics, Inc. (ALVR)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-02-10 | P, purchase reported on Form 4 | 5,000 | $44.3K | 2022-02-10 |
| 2022-04-26 | P, purchase reported on Form 4 | 5,000 | $23.2K | 2022-04-28 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1579989) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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