Harpoon Therapeutics, Inc.
Harpoon Therapeutics, Inc. (HARP) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · HARP · as of Jun 9, 2026
Activity summary
Buy transactions
9
P-Purchase only
Sell transactions
0
12 Months
Buy/Sell ratio
∞
Buy/Sell (by trades)
Overall sentiment
Harpoon Therapeutics, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
HARP insider buying and selling by quarter
HARP insider selling · HARP insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Recent insider transactions
HARP executive sell shares · HARP board member insider trading · HARP insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Mar 11, 2024 | New Leaf Biopharma Opportunities II, L.P. Director | Other | 395,783 | $9.10M⚡ | Form 4 |
| Mar 11, 2024 | SILVERNAIL LAUREN P Director | Other | 5,000 | $115K | Form 4 |
| Mar 8, 2024 | HUNT RONALD Director | Award | 424 | — | Form 4 |
| Mar 11, 2024 | HUNT RONALD Director | Other | 395,783 | $9.10M⚡ | Form 4 |
| Mar 11, 2024 | Walker Luke Nathaniel Chief Medical Officer | Other | 135,000 | $3.10M⚡ | Form 4 |
| Mar 11, 2024 | Myers Scott Dunseth Director | Other | 22,665 | $521K | Form 4 |
| Mar 8, 2024 | Chin Mark Director | Award | 424 | — | Form 4 |
| Mar 11, 2024 | Chin Mark Director | Other | 13,224 | $304K | Form 4 |
| Mar 8, 2024 | DRACHMAN JONATHAN G Director | Award | 415 | — | Form 4 |
| Mar 11, 2024 | DRACHMAN JONATHAN G Director | Other | 5,415 | $125K | Form 4 |
| Mar 11, 2024 | Robbins Andrew R Director | Other | 5,000 | $115K | Form 4 |
| Mar 11, 2024 | Lanza Frank J Principal Fin. & Acctng Ofc. | Other | 18,734 | $431K | Form 4 |
| Mar 11, 2024 | EASTLAND JULIA MARIE President and CEO · Director | Award | 31,250 | — | Form 4 |
| Mar 11, 2024 | EASTLAND JULIA MARIE President and CEO · Director | Other | 269,381 | $6.20M⚡ | Form 4 |
| Mar 11, 2024 | BAILES JOSEPH S Director | Other | 5,000 | $115K | Form 4 |
| Jan 7, 2024 | Walker Luke Nathaniel Chief Medical Officer | Award | 115,000 | — | Form 4 |
| Jan 7, 2024 | Lanza Frank J Principal Fin. & Acctng Ofc. | Award | 15,000 | — | Form 4 |
| Jan 7, 2024 | EASTLAND JULIA MARIE President and CEO · Director | Award | 178,500 | — | Form 4 |
| Jan 1, 2024 | Myers Scott Dunseth Director | Award | 2,048 | — | Form 4 |
| Jan 1, 2024 | HUNT RONALD Director | Award | 1,072 | — | Form 4 |
| Jan 1, 2024 | Chin Mark Director | Award | 1,072 | — | Form 4 |
| Nov 26, 2023 | Walker Luke Nathaniel Chief Medical Officer | Award | 20,000 | — | Form 4 |
| Nov 26, 2023 | Lanza Frank J Principal Fin. & Acctng Ofc. | Award | 2,000 | — | Form 4 |
| Nov 26, 2023 | EASTLAND JULIA MARIE President and CEO · Director | Award | 50,000 | — | Form 4 |
| Nov 27, 2023 | SILVERNAIL LAUREN P Director | Award | 5,000 | — | Form 4 |
New Leaf Biopharma Opportunities II, L.P.
Director
Date
Mar 11
Shares
395,783
Price
$23.00
Value
$9.10M ⚡
Walker Luke Nathaniel
Chief Medical Officer
Date
Mar 11
Shares
135,000
Price
$23.00
Value
$3.10M ⚡
Lanza Frank J
Principal Fin. & Acctng Ofc.
Date
Mar 11
Shares
18,734
Price
$23.00
Value
$431K
EASTLAND JULIA MARIE
President and CEO · Director
Date
Mar 11
Shares
31,250
Price
—
Value
—
EASTLAND JULIA MARIE
President and CEO · Director
Date
Mar 11
Shares
269,381
Price
$23.00
Value
$6.20M ⚡
Walker Luke Nathaniel
Chief Medical Officer
Date
Jan 7
Shares
115,000
Price
—
Value
—
Lanza Frank J
Principal Fin. & Acctng Ofc.
Date
Jan 7
Shares
15,000
Price
—
Value
—
EASTLAND JULIA MARIE
President and CEO · Director
Date
Jan 7
Shares
178,500
Price
—
Value
—
Walker Luke Nathaniel
Chief Medical Officer
Date
Nov 26
Shares
20,000
Price
—
Value
—
Lanza Frank J
Principal Fin. & Acctng Ofc.
Date
Nov 26
Shares
2,000
Price
—
Value
—
EASTLAND JULIA MARIE
President and CEO · Director
Date
Nov 26
Shares
50,000
Price
—
Value
—
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About HARP insider trading
HARP insider trades
Harpoon Therapeutics, Inc. (HARP) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including HARP. Over the past 12 months, 0 insiders have filed transactions with the SEC. HARP insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Harpoon Therapeutics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
HARP insider trading · 5 questionsThe insiders of Harpoon Therapeutics, Inc. (HARP) include executives and directors such as HARP, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026