Mark Eisner

Mark Eisner serves as officer: EVP and Chief Medical Officer at Kyntra Bio, Inc. (KYNB). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

8 trades

$720.6K

Net Position

Net Seller

$720.6K

Companies Traded

2

VIR, KYNB

Active Period

Mar 2023 – Feb 2026

8 total trades

Most Recent

Sell VIR

Feb 26, 2026 · $34.0K

Mark Eisner's Insider Trading at Kyntra Bio, Inc. (KYNB)

Buys

0 · $0.00

Sells

5 · $614.3K

Total Shares Bought

0

Total Shares Sold

31,004

KYNB Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jun 9, 2023	Sell	2,042	$17.04	$34.8K	162,862
Jun 5, 2023	Sell	1,090	$18.83	$20.5K	164,904
Apr 6, 2023	Sell	9,182	$18.78	$172.5K	165,994
Mar 10, 2023	Sell	17,503	$20.60	$360.6K	181,431
Mar 6, 2023	Sell	1,187	$21.87	$26.0K	172,496

Mark Eisner's Insider Trading at Vir Biotechnology, Inc. (VIR)

Buys

0 · $0.00

Sells

3 · $106.3K

Total Shares Bought

0

Total Shares Sold

15,976

VIR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 26, 2026	Sell	3,505	$9.69	$34.0K	155,913
Feb 24, 2026	Sell	2,089	$7.45	$15.6K	157,529
Jul 17, 2025	Sell	10,382	$5.47	$56.8K	108,204

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Mark Eisner Insider Trading Activity | Kyntra Bio, Inc. | InsiderFlow