Robert Gardner Harrison

CIK 1421563 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 1, 2021 · Latest: Nov. 1, 2021

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Insider at

Insider transactions

0 buys (P) 11 sells (S) Net: $-64,188 + 2 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

2 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 11, 2026 SERA S 716 $2.04 $1,461 76,712 Direct -0.92% Disposed 0.0% (price as of 2026-08-19)
March 9, 2026 SERA S 3,360 $1.96 $6,586 77,428 Direct -4.16% Disposed 4.1% (price as of 2026-08-19)
Feb. 24, 2026 SERA S 10b5-1 2,000 $2.34 $4,680 80,788 Direct -2.42% Disposed -12.8% (price as of 2026-08-19)
Jan. 27, 2026 SERA S 10b5-1 2,000 $2.97 $5,940 82,788 Direct -2.36% Disposed -31.3% (price as of 2026-08-19)
Dec. 30, 2025 SERA S 10b5-1 2,000 $3.00 $6,000 84,788 Direct -2.30% Disposed -32.0% (price as of 2026-08-19)
Dec. 10, 2025 SERA S 616 $3.31 $2,039 86,788 Direct -0.70% Disposed -38.4% (price as of 2026-08-19)
Dec. 2, 2025 SERA S 10b5-1 2,000 $2.93 $5,860 87,404 Direct -2.24% Disposed -30.4% (price as of 2026-08-19)
Nov. 10, 2025 SERA S 6,528 $2.62 $17,103 89,404 Direct -6.80% Disposed -22.1% (price as of 2026-08-19)
Nov. 4, 2025 SERA S 10b5-1 2,000 $3.07 $6,140 95,932 Direct -2.04% Disposed -33.6% (price as of 2026-08-19)
Oct. 7, 2025 SERA S 10b5-1 2,000 $3.18 $6,360 97,932 Direct -2.00% Disposed -35.8% (price as of 2026-08-19)
Sept. 11, 2025 SERA S 645 $3.13 $2,019 99,932 Direct -0.64% Disposed -34.8% (price as of 2026-08-19)
June 10, 2025 SERA S 667 $1.48 $987 114,539 Direct -0.58% Disposed 37.8% (price as of 2026-08-19)
May 8, 2025 SERA S 6,551 $2.44 $15,984 115,206 Direct -5.38% Disposed -16.4% (price as of 2026-08-19)
March 7, 2025 SERA S 10b5-1 3,874 $4.16 $16,116 121,757 Direct -3.08% Disposed -51.0% (price as of 2026-08-19)
March 6, 2025 SERA S 3,251 $4.16 $13,524 125,631 Direct -2.52% Disposed -51.0% (price as of 2026-08-19)
Feb. 13, 2025 SERA S 10b5-1 3,610 $4.28 $15,451 103,112 Direct -3.38% Disposed -52.3% (price as of 2026-08-19)
Feb. 12, 2025 SERA S 7,297 $4.58 $33,420 106,722 Direct -6.40% Disposed -55.5% (price as of 2026-08-19)
Feb. 11, 2025 SERA S 10b5-1 554 $3.97 $2,199 114,019 Direct -0.48% Disposed -48.6% (price as of 2026-08-19)
Jan. 13, 2025 SERA S 10b5-1 2,264 $6.47 $14,648 114,573 Direct -1.94% Disposed -68.5% (price as of 2026-08-19)
Jan. 10, 2025 SERA S 10b5-1 1,837 $8.01 $14,714 116,837 Direct -1.55% Disposed -74.5% (price as of 2026-08-19)
Jan. 10, 2025 SERA S 10b5-1 12,372 $7.30 $90,316 118,674 Direct -9.44% Disposed -72.1% (price as of 2026-08-19)
Nov. 11, 2024 SERA S 4,727 $7.32 $34,602 131,046 Direct -3.48% Disposed -72.1% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 5, 2025 SERA Stock Option (right to buy) Class A Common Stock (36,830) $4.20 March 5, 2035 36,830 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 21 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Nov. 1, 2021 SERA Stock Option (right to buy)→ Class A Common Stock (240,713) 240,713 Direct
Jan. 4, 2008 MYGN Common Stock 597 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (360) 360 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (6,600) 6,600 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (5,000) 5,000 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (5,300) 5,300 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (2,382) 2,382 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (2) 2 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (1,115) 1,115 Direct
Jan. 4, 2008 MYGN Incentive Stock Option (right to buy)→ Common Stock (4,890) 4,890 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (2,199) 2,199 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (2,200) 2,200 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (2,500) 2,500 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (3,579) 3,579 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (5,000) 5,000 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (4,400) 4,400 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (2,618) 2,618 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (4,398) 4,398 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (6,385) 6,385 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (3,110) 3,110 Direct
Jan. 4, 2008 MYGN Non-Qualified Stock Option (right to buy)→ Common Stock (2,000) 2,000 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

SERA

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2021 $238,773 — — $1,601,907 $67,804 — — $1,908,484

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.