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Insider · CIK 0001721108

A. Sinclair Dunlop

director

Files at APLS (Apellis Pharmaceuticals, Inc.). First filing Nov 21, 2023, latest Oct 15, 2025.

In brief

A. Sinclair Dunlop files SEC Form 4 as director at APLS (Apellis Pharmaceuticals, Inc.). Since Nov 21, 2023, A. Sinclair Dunlop has reported 0 open-market buys worth $0 and 6 open-market sells worth $5.2M, the latest filed on Oct 15, 2025.

A track record needs three past buys with six months of prices behind them; A. Sinclair Dunlop has 0, so none is measured yet.

The newest scored trade: sold $738k of APLS on Oct 10, 2025, filed Oct 15, 2025, scored 51 (moderate), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 1 sell worth $738k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 6
$0 bought, $5.2M sold

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
51Moderate
APLSsell 310b5-1
Apellis Pharmaceuticals, Inc.
$738k
31,092 shares
-89%-
34Weak
APLSsell 210b5-1
Apellis Pharmaceuticals, Inc.
$702k
31,092 shares
-48%-
41Moderate
APLSsell 410b5-1
Apellis Pharmaceuticals, Inc.
$714k
31,092 shares
-31%-
60Notable
APLSsell 6
Apellis Pharmaceuticals, Inc.
$1.5M
24,000 shares
-11%-
55Moderate
APLSsell 4
Apellis Pharmaceuticals, Inc.
$1.2M
24,000 shares
-10%-
47Moderate
APLSsell 7
Apellis Pharmaceuticals, Inc.
$445k
8,894 shares
-7%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Sep 19, 2025 APLS
Apellis Pharmaceuticals, Inc.
93,276
0.07% of outstanding
$2.1MSep 19, 2025none
Dec 1, 2023 APLS
Apellis Pharmaceuticals, Inc.
24,000
0.02% of outstanding
$1.3MDec 1, 2023$1.2M
Nov 17, 2023 APLS
Apellis Pharmaceuticals, Inc.
8,894
0.01% of outstanding
$445kNov 17, 2023none
Nov 9, 2023 APLS
Apellis Pharmaceuticals, Inc.
24,000
0.02% of outstanding
$1.2MNov 9, 2023none

Transactions

Every row this insider has filed, 28 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
UTender of shares
Common Stock
-161,567--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Common Stock
-3,062--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Common Stock
-5,744--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Common Stock
-7,961--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Common Stock
-3,544--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-14,684--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-27,600--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-11,199--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-8,554--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-7,441--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-27,600--0May 14, 2026
May 14, 2026APLS
Apellis Pharmaceuticals, Inc.
DDisposition to issuer
Stock Option (right to buy)derivative
-5,748--0May 14, 2026
Jan 1, 2026APLS
Apellis Pharmaceuticals, Inc.
AGrant or award
Common Stock
+7,961$0.00$0161,567Jan 5, 2026
Jan 1, 2026APLS
Apellis Pharmaceuticals, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+14,684$0.00$014,684Jan 5, 2026
Jun 24, 2025APLS
Apellis Pharmaceuticals, Inc.
JOther
Common Stock10b5-1
-4,787$0.00$0153,606Oct 15, 2025
Oct 10, 2025APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-31,092$23.72$738k3,837Oct 15, 2025
Oct 10, 2025APLS
Apellis Pharmaceuticals, Inc.
JOther
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-3,837$0.00$00Oct 15, 2025
Sep 30, 2025APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-31,092$22.58$702k33,979Oct 2, 2025
Sep 30, 2025APLS
Apellis Pharmaceuticals, Inc.
JOther
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-3,837$0.00$030,142Oct 2, 2025
Sep 19, 2025APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-31,092$22.95$714k68,908Sep 19, 2025
Sep 19, 2025APLS
Apellis Pharmaceuticals, Inc.
JOther
Common Stockindirect: Indirect Owner (Epidarex)10b5-1
-3,837$0.00$065,071Sep 19, 2025
Jan 1, 2025APLS
Apellis Pharmaceuticals, Inc.
AGrant or award
Common Stock
+6,267$0.00$0158,393Jan 3, 2025
Jan 1, 2025APLS
Apellis Pharmaceuticals, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+11,199$0.00$011,199Jan 3, 2025
Dec 14, 2023APLS
Apellis Pharmaceuticals, Inc.
MOption exercise
Common Stock
+6,274$13.19$83k128,677Dec 15, 2023
Dec 14, 2023APLS
Apellis Pharmaceuticals, Inc.
MOption exercise
Stock Option (Right to Buy)derivative
-6,274$0.00$07,000Dec 15, 2023
Dec 1, 2023APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stockindirect: Indirect Owner (Epidarex)
-24,000$61.14$1.5M192,679Dec 5, 2023
Nov 17, 2023APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stock
-8,894$49.99$445k122,403Nov 21, 2023
Oct 17, 2023APLS
Apellis Pharmaceuticals, Inc.
SOpen-market sale
Common Stockindirect: Indirect Owner (Epidarex)
-24,000$49.00$1.2M216,679Nov 21, 2023

Questions about A. Sinclair Dunlop

Answered from the filings on this page, as of the latest one.

Is A. Sinclair Dunlop buying or selling?

In the last 12 months A. Sinclair Dunlop reported 0 open-market buys worth $0 and 1 open-market sell worth $738k on SEC Form 4; the latest was sold $738k of APLS on Oct 10, 2025. Grants, option exercises and tax withholding are not counted.

How did A. Sinclair Dunlop's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and A. Sinclair Dunlop has 0.

Where does A. Sinclair Dunlop file Form 4?

A. Sinclair Dunlop has filed Form 4 at APLS (Apellis Pharmaceuticals, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.

A. Sinclair Dunlop: insider trades and track record | InsiderTell