Robert Gardner Harrison

SERA

Robert Gardner Harrison serves as officer: Chief Information Officer at Sera Prognostics, Inc. (SERA). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

25 trades

$476.6K

Net Position

Net Seller

$476.6K

Companies Traded

SERA

Active Period

Jun 2023 – Mar 2026

25 total trades

Most Recent

Sell SERA

Mar 12, 2026 · $1.5K

Robert Gardner Harrison's Insider Trading at Sera Prognostics, Inc. (SERA)

Buys

0 · $0.00

Sells

25 · $476.6K

Total Shares Bought

Total Shares Sold

100,831

SERA Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 12, 2026	Sell	716	$2.04	$1.5K	76,712
Mar 10, 2026	Sell	3,360	$1.96	$6.6K	77,428
Jan 27, 2026	Sell	2,000	$2.97	$5.9K	0
Dec 30, 2025	Sell	2,000	$3.00	$6.0K	0
Dec 10, 2025	Sell	616	$3.31	$2.0K	0
Dec 2, 2025	Sell	2,000	$2.93	$5.9K	0
Nov 10, 2025	Sell	6,528	$2.62	$17.1K	0
Nov 4, 2025	Sell	2,000	$3.07	$6.1K	0
Oct 7, 2025	Sell	2,000	$3.18	$6.4K	0
Sep 11, 2025	Sell	645	$3.13	$2.0K	0
Sep 9, 2025	Sell	2,000	$3.05	$6.1K	0
Aug 20, 2025	Sell	6,000	$2.22	$13.3K	0
Aug 8, 2025	Sell	5,962	$2.54	$15.1K	0
Jun 10, 2025	Sell	667	$1.48	$987.16	0
May 8, 2025	Sell	6,551	$2.44	$16.0K	0
Mar 7, 2025	Sell	3,874	$4.16	$16.1K	0
Mar 5, 2025	Sell	3,251	$4.16	$13.5K	0
Feb 14, 2025	Sell	10,907	$4.48	$48.9K	106,722
Feb 13, 2025	Sell	554	$3.97	$2.2K	114,019
Jan 14, 2025	Sell	16,473	$7.27	$119.7K	118,674
Aug 8, 2024	Sell	5,022	$7.42	$37.3K	135,773
May 10, 2024	Sell	4,902	$9.59	$47.0K	140,795
Mar 7, 2024	Sell	2,138	$9.02	$19.3K	145,697
Feb 7, 2024	Sell	5,665	$8.03	$45.5K	147,835
Jun 6, 2023	Sell	5,000	$3.23	$16.1K	28,500