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

To

Are these stocks worth buying? — GuruFocus analysis for each holding

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.

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
Total 0
  • 1
Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

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.

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Performance of Timothy Eugene Sullivan

Average Return

LIMIT
Average return per transaction

Outperforming Transactions

LIMIT
0 out of 1 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) -17.69 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) -18.96 LIMIT LIMIT LIMIT LIMIT LIMIT

Get the full picture on these stocks
See GF Score, valuation, financials, and warning signs for every stock Timothy Eugene Sullivan owns.
View APLS Analysis

Timothy Eugene Sullivan Ownership Network

Ownership Network List of Timothy Eugene Sullivan

No Data

Ownership Network Relation of Timothy Eugene Sullivan

Insider Network Chart


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.

To

Apellis Pharmaceuticals Inc Insider Transactions

No Available Data

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.