David C. Sachs

CIK 1848899 · View on SEC EDGAR ↗

Insider

First SEC filing: April 5, 2021 · Latest: April 5, 2021

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 27 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

No open-market trades on record; showing all filings.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 22, 2025 IBRX M 40,650 — — 241,480 Direct +20.24% Acquired (price as of 2026-08-19)
Feb. 22, 2025 IBRX F 15,860 $3.42 $54,241 225,620 Direct -6.57% Disposed 135.1% (price as of 2026-08-19)
Feb. 22, 2025 IBRX M 40,650 — — 81,301 Direct -33.33% Disposed (price as of 2026-08-19)
Feb. 10, 2025 IBRX A 246,710 — — 246,710 Direct — Acquired (price as of 2026-08-19)
Feb. 10, 2025 IBRX A 843,750 — — 843,750 Direct — Acquired (price as of 2026-08-19)
Dec. 31, 2024 IBRX M 30,397 — — 216,235 Direct +16.36% Acquired (price as of 2026-08-19)
Dec. 31, 2024 IBRX F 15,405 $2.56 $39,437 200,830 Direct -7.12% Disposed 214.1% (price as of 2026-08-19)
Dec. 31, 2024 IBRX M 30,397 — — 75,999 Direct -28.57% Disposed (price as of 2026-08-19)
Feb. 22, 2024 IBRX A 121,951 — — 121,951 Direct — Acquired (price as of 2026-08-19)
Feb. 22, 2024 IBRX A 424,390 — — 424,390 Direct — Acquired (price as of 2026-08-19)
Jan. 31, 2024 IBRX M 70,745 — — 212,673 Direct +49.85% Acquired (price as of 2026-08-19)
Jan. 31, 2024 IBRX F 26,835 $3.36 $90,166 185,838 Direct -12.62% Disposed 139.3% (price as of 2026-08-19)
Jan. 31, 2024 IBRX M 70,745 — — 0 Direct -100.00% Disposed (price as of 2026-08-19)
Dec. 31, 2023 IBRX M 30,397 — — 152,439 Direct +24.91% Acquired (price as of 2026-08-19)
Dec. 31, 2023 IBRX F 10,511 $5.02 $52,765 141,928 Direct -6.90% Disposed 60.2% (price as of 2026-08-19)
Dec. 31, 2023 IBRX M 30,397 — — 106,396 Direct -22.22% Disposed (price as of 2026-08-19)
Sept. 1, 2023 IBRX M 70,744 — — 122,042 Direct +137.91% Acquired (price as of 2026-08-19)
Sept. 1, 2023 IBRX M 70,744 — — 70,745 Direct -50.00% Disposed (price as of 2026-08-19)
Aug. 25, 2023 IBRX A 141,489 — — 141,489 Direct — Acquired (price as of 2026-08-19)
Dec. 31, 2022 IBRX M 7,598 — — 51,298 Direct +17.39% Acquired (price as of 2026-08-19)
Dec. 31, 2022 IBRX M 7,598 — — 136,793 Direct -5.26% Disposed (price as of 2026-08-19)
March 23, 2022 IBRX A 125,000 — — 125,000 Direct — Acquired (price as of 2026-08-19)
March 23, 2022 IBRX A 125,000 — — 125,000 Direct — Acquired (price as of 2026-08-19)
Dec. 9, 2021 IBRX M 17,242 — — 43,700 Direct +65.17% Acquired (price as of 2026-08-19)
Dec. 9, 2021 IBRX M 17,242 — — 144,391 Direct -10.67% Disposed (price as of 2026-08-19)
Sept. 9, 2021 IBRX M 7,598 — — 161,633 Direct -4.49% Disposed (price as of 2026-08-19)
Sept. 9, 2021 IBRX M 7,598 — — 26,458 Direct +40.29% Acquired (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
Feb. 22, 2025 IBRX Restricted Stock Units Common Stock (40,650) — — 40,650 Disposed
Feb. 10, 2025 IBRX Restricted Stock Units Common Stock (246,710) — — 246,710 Acquired
Feb. 10, 2025 IBRX Stock Option (right to buy) Common Stock (843,750) $3.39 Feb. 10, 2035 843,750 Acquired
Dec. 31, 2024 IBRX Restricted Stock Units Common Stock (30,397) — — 30,397 Disposed
Feb. 22, 2024 IBRX Restricted Stock Units Common Stock (121,951) — — 121,951 Acquired
Feb. 22, 2024 IBRX Stock Option (right to buy) Common Stock (424,390) $5.24 Feb. 22, 2034 424,390 Acquired
Jan. 31, 2024 IBRX Restricted Stock Units Common Stock (70,745) — — 70,745 Disposed
Dec. 31, 2023 IBRX Restricted Stock Units Common Stock (30,397) — — 30,397 Disposed
Sept. 1, 2023 IBRX Restricted Stock Units Common Stock (70,744) — — 70,744 Disposed
Aug. 25, 2023 IBRX Restricted Stock Units Common Stock (141,489) — — 141,489 Acquired
Dec. 31, 2022 IBRX Restricted Stock Units Common Stock (7,598) — — 7,598 Disposed
March 23, 2022 IBRX Stock Option (right to buy) Common Stock (125,000) $5.83 March 23, 2032 125,000 Acquired
March 23, 2022 IBRX Stock Option (right to buy) Common Stock (125,000) $5.83 March 23, 2032 125,000 Acquired
Dec. 9, 2021 IBRX Restricted Stock Units Common Stock (17,242) — — 17,242 Disposed
Sept. 9, 2021 IBRX Restricted Stock Units Common Stock (7,598) — — 7,598 Disposed

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

Initial ownership (Form 3) 2 holdings

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

Date Ticker Security Shares Ownership
April 5, 2021 IBRX Common Stock [F1] 18,860 Direct
March 11, 2021 IBRX Restricted Stock Units→ Common Stock (169,231) 169,231 Direct

Compensation (DEF 14A)

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

IBRX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2024 $574,515 — $639,023 $1,923,937 $230,143 — $13,989 $3,381,607
2023 $537,525 $273,980 $233,457 — — — $13,120 $1,058,082
2022 $521,039 — — $1,128,235 — — $12,288 $1,661,562

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