Brian Birchler

CIK 1970151 · View on SEC EDGAR ↗

Insider

First SEC filing: March 24, 2023 · Latest: April 17, 2026

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Insider at

Insider transactions

0 buys (P) 6 sells (S) Net: $-3,556,351 + 36 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

36 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 16, 2026 IONS S 973 $75.04 $73,014 67,500 Direct -1.42% Disposed -20.8% (price as of 2026-08-20)
Jan. 30, 2026 IONS S 6,179 $83.03 $513,042 66,247 Direct -8.53% Disposed -28.4% (price as of 2026-08-20)
Jan. 16, 2026 IONS S 8,480 $75.11 $636,933 60,435 Direct -12.31% Disposed -20.8% (price as of 2026-08-20)
Nov. 6, 2025 IONS S 10b5-1 8,000 $76.17 $609,360 48,826 Direct -14.08% Disposed -21.9% (price as of 2026-08-20)
Oct. 15, 2025 IONS S 10b5-1 12,425 $72.23 $897,458 56,826 Direct -17.94% Disposed -17.7% (price as of 2026-08-20)
Oct. 14, 2025 IONS S 10b5-1 11,475 $72.03 $826,544 56,826 Direct -16.80% Disposed -17.5% (price as of 2026-08-20)
April 16, 2025 IONS S 680 $28.37 $19,292 56,660 Direct -1.19% Disposed 109.6% (price as of 2026-08-20)
Jan. 16, 2025 IONS S 5,400 $32.70 $176,580 55,051 Direct -8.93% Disposed 81.8% (price as of 2026-08-20)
April 16, 2024 IONS S 905 $41.66 $37,702 46,156 Direct -1.92% Disposed 42.7% (price as of 2026-08-20)
Jan. 17, 2024 IONS S 4,497 $50.42 $226,739 44,582 Direct -9.16% Disposed 17.9% (price as of 2026-08-20)
April 18, 2023 IONS S 672 $36.50 $24,528 36,528 Direct -1.81% Disposed 62.9% (price as of 2026-08-20)

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
April 15, 2026 IONS Restricted Stock Unit Common Stock (1,875) — — 1,875 Disposed
Jan. 15, 2026 IONS Restricted Stock Unit [F8] Common Stock (9,675) — — 9,675 Acquired
Jan. 15, 2026 IONS Restricted Stock Unit Common Stock (20,089) — — 20,089 Disposed
Jan. 15, 2026 IONS Performance Restricted Stock Units [F4] Common Stock (25,800) $0.00 — 25,800 Acquired
Jan. 2, 2026 IONS Non-Qualified Stock Option (right to buy) Common Stock (19,350) $79.67 Jan. 1, 2036 19,350 Acquired
Oct. 15, 2025 IONS Non-Qualified Stock Option (right to buy) Common Stock (12,425) $53.77 Jan. 1, 2026 12,425 Disposed
Oct. 14, 2025 IONS Non-Qualified Stock Option (right to buy) Common Stock (11,475) $53.77 Jan. 1, 2026 11,475 Disposed
April 15, 2025 IONS Restricted Stock Unit Common Stock (1,875) — — 1,875 Disposed
Jan. 15, 2025 IONS Restricted Stock Unit Common Stock (14,283) — — 14,283 Disposed
Jan. 15, 2025 IONS Restricted Stock Unit [F5] Common Stock (33,000) — — 33,000 Acquired
Jan. 15, 2025 IONS Performance Restricted Stock Units [F3] Common Stock (22,000) $0.00 — 22,000 Acquired
Jan. 2, 2025 IONS Non-Qualified Stock Option (right to buy) Common Stock (22,000) $34.69 Jan. 1, 2035 22,000 Acquired
April 15, 2024 IONS Restricted Stock Unit Common Stock (1,875) — — 1,875 Disposed
Jan. 16, 2024 IONS Restricted Stock Unit Common Stock (12,080) — — 12,080 Disposed
Jan. 15, 2024 IONS Restricted Stock Unit [F3] Common Stock (20,400) — — 20,400 Acquired
Jan. 15, 2024 IONS Performance Restricted Stock Units [F1] Common Stock (17,000) $0.00 — 17,000 Acquired
Jan. 2, 2024 IONS Non-Qualified Stock Option (right to buy) Common Stock (27,200) $52.87 Jan. 1, 2034 27,200 Acquired
Dec. 28, 2023 IONS Non-Qualified Stock Option (right to buy) Common Stock (11,500) $47.34 Jan. 2, 2024 11,500 Disposed
April 17, 2023 IONS Restricted Stock Unit Common Stock (1,875) — — 1,875 Disposed

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

Initial ownership (Form 3) 16 holdings

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

Date Ticker Security Shares Ownership
March 24, 2023 IONS Common Stock 35,325 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (19,500) 19,500 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (15,000) 15,000 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (22,942) 22,942 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (26,982) 26,982 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (31,500) 31,500 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (23,900) 23,900 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (22,000) 22,000 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (26,063) 26,063 Direct
March 24, 2023 IONS Non-Qualified Stock Option (right to buy)→ Common Stock (15,500) 15,500 Direct
March 24, 2023 IONS Performance Restricted Stock Units [F10]→ Common Stock (14,338) 14,338 Direct
March 24, 2023 IONS Restricted Stock Unit [F12]→ Common Stock (2,896) 2,896 Direct
March 24, 2023 IONS Restricted Stock Unit [F12]→ Common Stock (4,888) 4,888 Direct
March 24, 2023 IONS Restricted Stock Unit [F12]→ Common Stock (7,312) 7,312 Direct
March 24, 2023 IONS Restricted Stock Unit [F12]→ Common Stock (7,500) 7,500 Direct
March 24, 2023 IONS Restricted Stock Unit [F12]→ Common Stock (17,207) 17,207 Direct

Compensation (DEF 14A)

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

IONS

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $580,154 $617,284 $1,095,930 $366,767 — — $48,009 $3,245,054

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