sellWeak cluster of 8
Mark Jeffrey DeLong sold $26k of APLS
Chief Business & Strat Officer at Apellis Pharmaceuticals, Inc.. 1,334 shares at an average of $19.79, traded Jan 20, 2026, filed Jan 21, 2026.
Warning score
35Value
$26k
1,334 shares
Holdings after
81,724
-2% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet
Score components
- +15RoleOfficer
- +5Trade size$26k at market
- 0Share of holdings soldSold 1.6% of holdings
- +15Cluster8 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Rows in this filing
Every transaction in Form 4 0001492422-26-000043, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jan 20, 2026 | SOpen-market sale Common Stock | -1,334 | $19.79 | $26k | 81,724 | Jan 21, 2026 |
Related signals
Other insiders at Apellis Pharmaceuticals, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 15Weak | APLSsell Apellis Pharmaceuticals, Inc. | Mark Jeffrey DeLong Chief Business & Strat Officer | $8,153 368 shares | -0% | |
| 41Moderate | Apellis Pharmaceuticals, Inc. | David O. Watson General Counsel | $170k 7,832 shares | -8% | |
| 49Moderate | Apellis Pharmaceuticals, Inc. | Timothy Eugene Sullivan Chief Financial Officer | $224k 10,287 shares | -10% | |
| 41Moderate | Apellis Pharmaceuticals, Inc. | Nur Nicholson Chief Technical Officer | $168k 7,725 shares | -10% | |
| 59Moderate | Apellis Pharmaceuticals, Inc. | Cedric Francois Chief Executive Officer | $592k 27,192 shares | -9% | |
| 41Moderate | Apellis Pharmaceuticals, Inc. | Pascal Deschatelets Chief Scientific Officer | $129k 5,928 shares | -1% | |
| 38Weak | Apellis Pharmaceuticals, Inc. | Mark Jeffrey DeLong Chief Business & Strat Officer | $73k 3,371 shares | -4% | |
| 36Weak | Apellis Pharmaceuticals, Inc. | James George Chopas VP/Chief Accounting Officer | $45k 2,064 shares | -4% | |
| 37Weak | Apellis Pharmaceuticals, Inc. | Caroline Baumal Chief Medical Officer | $61k 2,797 shares | -3% | |
| 37Weak | Apellis Pharmaceuticals, Inc. | David O. Watson General Counsel | $49k 2,475 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.