Beth C. Seidenberg
Beth C. Seidenberg's purchase track record
How the stock did after each of Beth C. Seidenberg's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 12/18/2025 | KYTX | $1000K | +22.0% | +15.3% | +10.7% |
| 7/18/2023 | SGMT | $750K | -65.6% | -60.2% | +4.6% |
| 3/24/2023 | VERA | $215K | +130.0% | +93.3% | +8.8% |
| 3/15/2023 | VERA | $1.30M | +87.2% | +136.2% | +14.8% |
| 3/3/2023 | VERA | $351K | +23.6% | +146.2% | +11.6% |
| 2/23/2023 | VERA | $171K | -5.0% | +132.0% | +9.1% |
| 2/13/2023 | VERA | $72K | +6.3% | +137.3% | +8.5% |
| 2/3/2023 | VERA | $2.21M | +2.9% | +150.2% | +8.3% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 16, 2026
Leerink Partners Covers Vera Therapeutics at $34 Target. Leerink Partners has started coverage of Vera Therapeutics, giving it a Market Perform rating and a price target of $34. The target sits near the lower end of the company’s 52‑week range and close to the current support level of $33.79. The new rating may influence how traders view the stock’s short‑term prospects. The RSI of 37 suggests the stock is not overbought or oversold at this time.
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 12, 2026
Progyny (PGNY) shares rise over 6% amid record sales pace. Shares of Progyny jumped about 6% after the company reported a selling season that is pacing toward a record level. Analysts noted the move while also comparing the stock’s valuation to peers such as CRL. The price action comes as the stock trades with an RSI near 61 and holds above a support level around $25.40. The news adds to recent discussion about potential upside, though the stock remains below its 52‑week high.
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 25, 2026
Goldman Sachs reinstates Sell rating on SGMT with $7 target. Goldman Sachs has reinstated a Sell rating on Sagimet Biosciences, setting a price target of $7. This move stands in contrast to the average analyst target of $29.60, highlighting a significant divergence in expert opinions. The stock is currently trading near its 52-week low of $4.50, reflecting the bearish sentiment associated with the new rating.
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 30, 2026
Atara Biotherapeutics Resubmits Tabelecleucel BLA to FDA. Atara Biotherapeutics and its partner Pierre Fabre have filed a new biologics license application for the Tabelecleucel therapy with the U.S. FDA. The resubmission follows the earlier filing and reflects the companies' effort to move the product toward approval. The stock is currently near a long‑standing support level, which may be watched as the regulatory process continues.
Transaction History
| KYTX | ▲ Buy | Grant | 5,093 | $0 | 5/27/2026 | View on chart |
| KYTX | ▲ Buy | Open Market | 133,333 | $1000K | 12/18/2025 | View on chart |
| KYTX | ▲ Buy | Grant | 16,634 | $0 | 5/29/2025 | View on chart |
| VERA | ▼ Sell | Open Market | 202 | $10K | 10/28/2024 | View on chart |
| VERA | ▼ Sell | Open Market | 14,798 | $710K | 10/28/2024 | View on chart |
| VERA | ▼ Sell | Open Market | 13,823 | $585K | 9/19/2024 | View on chart |
| VERA | ▼ Sell | Open Market | 1,177 | $49K | 9/18/2024 | View on chart |
| VERA | ▼ Sell | Open Market | 1,476 | $62K | 9/18/2024 | View on chart |
| PGNY | ▲ Buy | Grant | 7,206 | $0 | 5/23/2024 | View on chart |
| KYTX | ▼ Sell | Other | 3,787,940 | — | 2/12/2024 | View on chart |
| KYTX | ▼ Sell | Other | 735,984 | — | 2/12/2024 | View on chart |
| SGMT | ▼ Sell | Other | 38,763 | — | 7/18/2023 | View on chart |
| SGMT | ▲ Buy | Open Market | 46,875 | $750K | 7/18/2023 | View on chart |
| SGMT | ▼ Sell | Other | 1,860,712 | — | 7/18/2023 | View on chart |
| SGMT | ▼ Sell | Other | 84,768 | — | 7/18/2023 | View on chart |
| SGMT | ▲ Buy | Grant | 38,763 | — | 7/18/2023 | View on chart |
| PGNY | ▼ Sell | Other | 10,284 | $0 | 6/23/2023 | View on chart |
| PGNY | ▼ Sell | Other | 17,162 | $0 | 6/23/2023 | View on chart |
| PGNY | ▼ Sell | Other | 247,446 | $0 | 6/9/2023 | View on chart |
| PGNY | ▼ Sell | Other | 264,608 | $0 | 6/9/2023 | View on chart |
| PGNY | ▼ Sell | Other | 6,656 | $0 | 6/9/2023 | View on chart |
| PGNY | ▼ Sell | Other | 1,398,900 | $0 | 6/9/2023 | View on chart |
| ATRA | ▲ Buy | Grant | 57,000 | $0 | 5/31/2023 | View on chart |
| PGNY | ▲ Buy | Grant | 5,116 | $0 | 5/24/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 2,300 | $17K | 3/30/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 23,908 | $173K | 3/28/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 1,633 | $12K | 3/27/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 1,833 | $13K | 3/24/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 15,252 | $110K | 3/20/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 74,045 | $527K | 3/17/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 60,097 | $426K | 3/16/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 32,844 | $234K | 3/15/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 48,003 | $343K | 3/10/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 1,000 | $7K | 3/3/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 23,378 | $169K | 3/2/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 100 | $725 | 3/1/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 200 | $1K | 2/23/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 10,072 | $72K | 2/13/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 400 | $3K | 2/9/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 45,357 | $327K | 2/8/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 87,956 | $623K | 2/7/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 131,602 | $925K | 2/6/2023 | View on chart |
| VERA | ▲ Buy | Open Market | 46,163 | $334K | 2/3/2023 | View on chart |
| PGNY | ▲ Buy | Grant | 4,060 | $0 | 10/24/2022 | View on chart |
| ATRA | ▲ Buy | Grant | 20,500 | $0 | 6/23/2022 | View on chart |
| PGNY | ▼ Sell | Gift | 22,999 | $0 | 3/3/2022 | View on chart |
| PGNY | ▼ Sell | Gift | 22,999 | $0 | 3/3/2022 | View on chart |
| PGNY | ▼ Sell | Other | 15,250 | $0 | 12/22/2021 | View on chart |
| PGNY | ▼ Sell | Other | 19,265 | $0 | 12/22/2021 | View on chart |
| PGNY | ▼ Sell | Other | 306,560 | $0 | 11/17/2021 | View on chart |
| PGNY | ▼ Sell | Other | 287,295 | $0 | 11/17/2021 | View on chart |
| PGNY | ▼ Sell | Other | 7,749 | $0 | 11/17/2021 | View on chart |
| PGNY | ▼ Sell | Other | 932,600 | $0 | 11/17/2021 | View on chart |
| PGNY | ▲ Buy | Grant | 3,094 | $0 | 10/24/2021 | View on chart |
| PGNY | ▼ Sell | Gift | 32,802 | $0 | 9/16/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 25, 2026
Kyverna Reports Positive One-Year Data for Miv-cel Trials
Kyverna Therapeutics disclosed one‑year data from its Miv‑cel trials in stiff person syndrome and generalized myasthenia gravis, showing durable responses and a favorable safety profile. The CEO noted that the high disease burden supports a premium pricing strategy. These results reinforce the potential of a single‑dose therapy to reduce long‑term treatment burden.
Kyverna Reports Positive One-Year Data for Miv-cel Trials. Kyverna Therapeutics disclosed one‑year data from its Miv‑cel trials in stiff person syndrome and generalized myasthenia gravis, showing durable responses and a favorable safety profile. The CEO noted that the high disease burden supports a premium pricing strategy. These results reinforce the potential of a single‑dose therapy to reduce long‑term treatment burden.