InsiderFlow

RA CAPITAL MANAGEMENT, L.P.

JANX

RA CAPITAL MANAGEMENT, L.P. serves as director, 10 percent owner: at Janux Therapeutics, Inc. (JANX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

41 trades

$773.03M

Total Sells

12 trades

$83.30M

Net Position

Net Buyer

$689.73M

Companies Traded

22

ARTV, HOWL, VOR, ACET

Active Period

Mar 2021 – Jul 2026

53 total trades

Most Recent

Buy ARTV

Jul 14, 2026 · $194.0K

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Janux Therapeutics, Inc. (JANX)

Buys

3 · $109.87M

Sells

0 · $0.00

Total Shares Bought

4,636,184

Total Shares Sold

0

JANX Price Chart
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DateTypeValue
Oct 22, 2024 Buy$53.70M
Jul 21, 2023 Buy$6.17M
Jun 16, 2021 Buy$50.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Artiva Biotherapeutics, Inc. (ARTV)

Buys

5 · $87.74M

Sells

0 · $0.00

Total Shares Bought

8,123,994

Total Shares Sold

0

ARTV Price Chart
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DateTypeValue
Jul 14, 2026 Buy$194.0K
Jun 29, 2026 Buy$292.1K
Jun 16, 2026 Buy$4.60M
Jun 11, 2026 Buy$7.65M
May 13, 2026 Buy$75.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Mineralys Therapeutics, Inc. (MLYS)

Buys

4 · $76.26M

Sells

0 · $0.00

Total Shares Bought

4,091,766

Total Shares Sold

0

MLYS Price Chart
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DateTypeValue
Mar 31, 2026 Buy$8.76M
Sep 8, 2025 Buy$30.00M
Mar 17, 2025 Buy$17.50M
Feb 16, 2023 Buy$20.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Septerna, Inc. (SEPN)

Buys

1 · $75.06M

Sells

0 · $0.00

Total Shares Bought

4,170,000

Total Shares Sold

0

SEPN Price Chart
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DateTypeValue
Oct 30, 2024 Buy$75.06M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at PepGen Inc. (PEPG)

Buys

2 · $65.96M

Sells

0 · $0.00

Total Shares Bought

5,786,793

Total Shares Sold

0

PEPG Price Chart
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DateTypeValue
Feb 13, 2024 Buy$27.21M
May 12, 2022 Buy$38.75M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Nkarta, Inc. (NKTX)

Buys

2 · $63.00M

Sells

0 · $0.00

Total Shares Bought

5,200,000

Total Shares Sold

0

NKTX Price Chart
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DateTypeValue
Mar 29, 2024 Buy$30.00M
Apr 28, 2022 Buy$33.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Vor Biopharma Inc. (VOR)

Buys

0 · $0.00

Sells

5 · $49.42M

Total Shares Bought

0

Total Shares Sold

3,002,903

VOR Price Chart
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DateTypeValue
Apr 24, 2026 Sell$2.60M
Apr 21, 2026 Sell$10.17M
Apr 15, 2026 Sell$11.88M
Apr 10, 2026 Sell$10.23M
Apr 6, 2026 Sell$14.52M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at ARS Pharmaceuticals, Inc. (SPRY)

Buys

3 · $44.72M

Sells

0 · $0.00

Total Shares Bought

7,851,299

Total Shares Sold

0

SPRY Price Chart
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DateTypeValue
Mar 27, 2024 Buy$13.29M
Sep 25, 2023 Buy$8.18M
Aug 31, 2023 Buy$23.25M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Jade Biosciences, Inc. (JBIO)

Buys

2 · $40.55M

Sells

0 · $0.00

Total Shares Bought

3,713,824

Total Shares Sold

0

JBIO Price Chart
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DateTypeValue
Jun 20, 2024 Buy$1.55M
Jul 6, 2021 Buy$39.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Fulcrum Therapeutics, Inc. (FULC)

Buys

5 · $40.00M

Sells

0 · $0.00

Total Shares Bought

4,609,704

Total Shares Sold

0

FULC Price Chart
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DateTypeValue
Jan 24, 2023 Buy$25.00M
Jan 6, 2023 Buy$1.31M
Dec 29, 2022 Buy$24.5K
Dec 21, 2022 Buy$582.8K
Dec 16, 2022 Buy$13.07M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Tyra Biosciences, Inc. (TYRA)

Buys

2 · $39.84M

Sells

0 · $0.00

Total Shares Bought

2,470,681

Total Shares Sold

0

TYRA Price Chart
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DateTypeValue
Nov 13, 2024 Buy$19.84M
Sep 17, 2021 Buy$20.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Acumen Pharmaceuticals, Inc. (ABOS)

Buys

1 · $30.00M

Sells

0 · $0.00

Total Shares Bought

1,875,000

Total Shares Sold

0

ABOS Price Chart
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DateTypeValue
Jul 8, 2021 Buy$30.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Sionna Therapeutics, Inc. (SION)

Buys

1 · $20.25M

Sells

0 · $0.00

Total Shares Bought

1,125,000

Total Shares Sold

0

SION Price Chart
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DateTypeValue
Feb 10, 2025 Buy$20.25M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at LENZ Therapeutics, Inc. (LENZ)

Buys

1 · $15.00M

Sells

0 · $0.00

Total Shares Bought

998,009

Total Shares Sold

0

LENZ Price Chart
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DateTypeValue
Mar 25, 2024 Buy$15.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Werewolf Therapeutics, Inc. (HOWL)

Buys

2 · $8.22M

Sells

4 · $963.9K

Total Shares Bought

2,176,298

Total Shares Sold

2,109,140

HOWL Price Chart
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DateTypeValue
Jun 22, 2026 Sell$145.9K
Jun 16, 2026 Sell$173.8K
Jun 11, 2026 Sell$253.6K
May 12, 2026 Sell$390.7K
Jan 10, 2023 Buy$4.10M
Jun 16, 2021 Buy$4.13M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Solid Biosciences Inc. (SLDB)

Buys

1 · $5.00M

Sells

0 · $0.00

Total Shares Bought

904,160

Total Shares Sold

0

SLDB Price Chart
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DateTypeValue
Jan 12, 2024 Buy$5.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Wave Life Sciences Ltd. (WVE)

Buys

1 · $5.00M

Sells

0 · $0.00

Total Shares Bought

1,000,000

Total Shares Sold

0

WVE Price Chart
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DateTypeValue
Dec 13, 2023 Buy$5.00M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Bicara Therapeutics Inc. Common Stock (BCAX)

Buys

1 · $4.80M

Sells

0 · $0.00

Total Shares Bought

300,000

Total Shares Sold

0

BCAX Price Chart
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DateTypeValue
Mar 2, 2026 Buy$4.80M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at KALA BIO, Inc. (KALA)

Buys

0 · $0.00

Sells

2 · $1.85M

Total Shares Bought

0

Total Shares Sold

3,835,000

KALA Price Chart
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DateTypeValue
May 26, 2022 Sell$365.7K
May 25, 2022 Sell$1.49M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Adicet Bio, Inc. (ACET)

Buys

1 · $1.60M

Sells

0 · $0.00

Total Shares Bought

223,596

Total Shares Sold

0

ACET Price Chart
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DateTypeValue
Apr 13, 2026 Buy$1.60M

RA CAPITAL MANAGEMENT, L.P.'s Insider Trading at Climb Bio, Inc. (CLYM)

Buys

1 · $24.9K

Sells

0 · $0.00

Total Shares Bought

7,111

Total Shares Sold

0

CLYM Price Chart
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DateTypeValue
Jan 7, 2026 Buy$24.9K

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