Mark Jeffrey DeLong

APLS

Mark Jeffrey DeLong serves as officer: Chief Business & Strat Officer at Apellis Pharmaceuticals, Inc. (APLS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

34 trades

$4.81M

Net Position

Net Seller

$4.81M

Companies Traded

APLS

Active Period

May 2021 – Feb 2026

34 total trades

Most Recent

Sell APLS

Feb 13, 2026 · $8.2K

Mark Jeffrey DeLong's Insider Trading at Apellis Pharmaceuticals, Inc. (APLS)

Buys

0 · $0.00

Sells

34 · $4.81M

Total Shares Bought

Total Shares Sold

93,448

APLS Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 13, 2026	Sell	368	$22.15	$8.2K	114,591
Feb 11, 2026	Sell	368	$22.15	$8.2K	0
Jan 23, 2026	Sell	3,371	$21.77	$73.4K	78,353
Jan 22, 2026	Sell	3,371	$21.77	$73.4K	0
Jan 21, 2026	Sell	1,334	$19.79	$26.4K	81,724
Jan 20, 2026	Sell	1,334	$19.79	$26.4K	0
Jan 15, 2026	Sell	1,780	$22.19	$39.5K	83,058
Jan 13, 2026	Sell	1,780	$22.19	$39.5K	0
Feb 11, 2025	Sell	363	$28.54	$10.4K	0
Jan 29, 2025	Sell	365	$29.52	$10.8K	0
Jan 22, 2025	Sell	1,396	$30.43	$42.5K	0
Jan 17, 2025	Sell	1,235	$29.96	$37.0K	0
Mar 18, 2024	Sell	9,913	$56.90	$564.0K	0
Feb 12, 2024	Sell	597	$67.77	$40.5K	0
Jan 22, 2024	Sell	1,384	$65.00	$90.0K	0
Jan 16, 2024	Sell	1,631	$66.81	$109.0K	0
Oct 23, 2023	Sell	131	$46.04	$6.0K	0
Feb 21, 2023	Sell	441	$58.50	$25.8K	0
Feb 10, 2023	Sell	670	$51.21	$34.3K	0
Jan 20, 2023	Sell	1,149	$52.05	$59.8K	0
Oct 20, 2022	Sell	196	$58.00	$11.4K	0
Aug 17, 2022	Sell	5,000	$69.50	$347.5K	0
Aug 11, 2022	Sell	5,000	$67.00	$335.0K	0
Aug 8, 2022	Sell	5,000	$64.50	$322.5K	0
Aug 4, 2022	Sell	10,000	$60.75	$607.5K	0
Jul 27, 2022	Sell	5,000	$57.00	$285.0K	0
Jul 19, 2022	Sell	5,000	$56.42	$282.1K	0
Jun 16, 2022	Sell	10,000	$41.79	$417.9K	0
Apr 20, 2022	Sell	7,000	$52.53	$367.7K	0
Feb 10, 2022	Sell	271	$47.12	$12.8K	0
Jul 21, 2021	Sell	1,000	$65.00	$65.0K	0
Jul 15, 2021	Sell	1,000	$62.30	$62.3K	0
Jun 15, 2021	Sell	4,000	$64.96	$259.8K	0
May 18, 2021	Sell	2,000	$55.00	$110.0K	0