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Simpson Todd E insider trades
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Simpson Todd E insider trades

Simpson Todd E has filed 25 Form 4s with the SEC that we hold, for SGEN (Chief Financial Officer), Xencor Inc (XNCR) (Director) and Neurogene Inc. (NLTX) (Director). Across all of them we count 0 purchases worth $0 and 22 sales worth $44.9M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 40,364 shares of SGEN worth $8.3M, dated 2023-04-10. The first filing on our record is dated 2021-08-18 and the latest 2026-07-08.

SGEN

Chief Financial Officer · 20 filings · 22 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-08-16S, sale reported on Form 4533$82.4K2021-08-18
2021-08-31S, sale reported on Form 42,122$355.5K2021-09-02
2021-08-31S, sale reported on Form 41,865$312.4K2021-09-02
2021-10-29S, sale reported on Form 433,564$6.0M2021-11-02
2021-11-03S, sale reported on Form 440,232$7.4M2021-11-05
2021-12-20S, sale reported on Form 4345$51.7K2021-12-22
2022-04-20S, sale reported on Form 4567$81.8K2022-04-22
2022-08-16S, sale reported on Form 41,106$188.3K2022-08-17
2022-08-16S, sale reported on Form 4861$146.6K2022-08-17
2022-08-31S, sale reported on Form 42,122$327.7K2022-09-01
2022-08-31S, sale reported on Form 42,064$318.7K2022-09-01
2023-02-16S, sale reported on Form 439,946$6.4M2023-02-21
2023-02-27S, sale reported on Form 420,000$3.7M2023-02-28
2023-03-09S, sale reported on Form 46,082$1.1M2023-03-10
2023-03-09S, sale reported on Form 426,449$4.7M2023-03-10
2023-03-09S, sale reported on Form 410,262$1.8M2023-03-10
2023-04-06S, sale reported on Form 4243$50.0K2023-04-07
2023-04-10S, sale reported on Form 440,364$8.3M2023-04-12
2023-04-10S, sale reported on Form 414,980$3.1M2023-04-12
2023-08-29S, sale reported on Form 4485$99.9K2023-08-30
2023-08-31S, sale reported on Form 42,122$439.2K2023-09-01
2023-09-21S, sale reported on Form 480$16.5K2023-09-22

Xencor Inc (XNCR)

Director · 3 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Neurogene Inc. (NLTX)

Director · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1216477) 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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