Timothy Eugene Sullivan - Net Worth and Insider Trading
Timothy Eugene Sullivan Net Worth
The estimated net worth of Timothy Eugene Sullivan is at least $6 Million dollars as of 2026-09-11. Timothy Eugene Sullivan is the CFO of Apellis Pharmaceuticals Inc and owns about 154,297 shares of Apellis Pharmaceuticals Inc (APLS) stock worth over $6 Million. Details can be seen in Timothy Eugene Sullivan's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Timothy Eugene Sullivan has not made any transactions after 2026-01-22 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Timothy Eugene Sullivan
Timothy Eugene Sullivan Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Timothy Eugene Sullivan owns 2 companies in total, including Apellis Pharmaceuticals Inc (APLS) , and G1 Therapeutics Inc (GTHX) .
Click here to see the complete history of Timothy Eugene Sullivan’s form 4 insider trades.
Insider Ownership Summary of Timothy Eugene Sullivan
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| APLS | Apellis Pharmaceuticals Inc | 2026-01-22 | Chief Financial Officer |
| GTHX | G1 Therapeutics Inc | 2017-05-16 | director |
Timothy Eugene Sullivan Latest Holdings Summary
Timothy Eugene Sullivan currently owns a total of 1 stock. Timothy Eugene Sullivan owns 154,297 shares of Apellis Pharmaceuticals Inc (APLS) as of January 22, 2026, with a value of $6 Million.
Latest Holdings of Timothy Eugene Sullivan
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| APLS | Apellis Pharmaceuticals Inc | 2026-01-22 | 154,297 | 41.03 | 6,330,806 |
Holding Weightings of Timothy Eugene Sullivan
Timothy Eugene Sullivan Form 4 Trading Tracker
According to the SEC Form 4 filings, Timothy Eugene Sullivan has made a total of 17 transactions in Apellis Pharmaceuticals Inc (APLS) over the past 5 years, including 0 buys and 17 sells. The most-recent trade in Apellis Pharmaceuticals Inc is the sale of 10,287 shares on January 22, 2026, which brought Timothy Eugene Sullivan around $223,948.
Insider Trading History of Timothy Eugene Sullivan
* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.
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Timothy Eugene Sullivan Trading Performance
GuruFocus tracks the stock performance after each of Timothy Eugene Sullivan's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Timothy Eugene Sullivan is -9.43%. GuruFocus also compares Timothy Eugene Sullivan's trading performance to market benchmark return within the same time period. The performance of stocks bought by Timothy Eugene Sullivan within 3 months outperforms 0 times out of 1 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Timothy Eugene Sullivan's insider trading performs compared to the benchmark.
Performance of Timothy Eugene Sullivan
Timothy Eugene Sullivan Ownership Network
Ownership Network List of Timothy Eugene Sullivan
Ownership Network Relation of Timothy Eugene Sullivan

Timothy Eugene Sullivan Owned Company Details
What does Apellis Pharmaceuticals Inc do?
Who are the key executives at Apellis Pharmaceuticals Inc?
Timothy Eugene Sullivan is the Chief Financial Officer of Apellis Pharmaceuticals Inc. Other key executives at Apellis Pharmaceuticals Inc include other: See footnotes Biogen Inc. , Senior Vice President Mark Jeffrey Delong , and General Counsel David O. Watson .
Apellis Pharmaceuticals Inc (APLS) Insider Trades Summary
Over the past 18 months, Timothy Eugene Sullivan made 5 insider transaction in Apellis Pharmaceuticals Inc (APLS) with a net sale of 69,764. Other recent insider transactions involving Apellis Pharmaceuticals Inc (APLS) include a net sale of 71,087 shares made by David O. Watson , a net sale of 429,650 shares made by Cedric Francois , and a net sale of 4,035 shares made by James George Chopas .
In summary, during the past 3 months, insiders sold 0 shares of Apellis Pharmaceuticals Inc (APLS) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 704,024 shares of Apellis Pharmaceuticals Inc (APLS) were sold and 0 shares were bought by its insiders, resulting in a net sale of 704,024 shares.
Apellis Pharmaceuticals Inc (APLS)'s detailed insider trading history can be found in Insider Trading Tracker table.
Apellis Pharmaceuticals Inc Insider Transactions
Timothy Eugene Sullivan Mailing Address
Above is the net worth, insider trading, and ownership report for Timothy Eugene Sullivan. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Timothy Eugene Sullivan's mailing address is: Boston Ma 02199.