Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 16 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

16 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Aug. 16, 2024 ATRA S 276 $6.63 $1,830 70,127 Direct -0.39% Disposed 43.0% (price as of 2026-10-02)
Aug. 16, 2024 ATRA S 2,762 $6.63 $18,312 70,403 Direct -3.78% Disposed 43.0% (price as of 2026-10-02)
May 16, 2024 ATRA S 81,506 $0.62 $50,534 1,829,146 Direct -4.27% Disposed -38.8% (price as of 2026-10-02)
March 4, 2024 ATRA S 24,844 $0.72 $17,888 1,910,652 Direct -1.28% Disposed -47.3% (price as of 2026-10-02)
Nov. 16, 2023 ATRA S 20,409 $0.39 $7,960 655,496 Direct -3.02% Disposed -2.8% (price as of 2026-10-02)
Aug. 16, 2023 ATRA S 9,334 $1.65 $15,401 675,905 Direct -1.36% Disposed -77.0% (price as of 2026-10-02)
Aug. 16, 2023 ATRA S 21,432 $1.65 $35,363 685,239 Direct -3.03% Disposed -77.0% (price as of 2026-10-02)
June 27, 2023 ATRA S 14,291 $1.66 $23,723 706,671 Direct -1.98% Disposed -77.2% (price as of 2026-10-02)
May 16, 2023 ATRA S 29,766 $2.04 $60,723 720,962 Direct -3.96% Disposed -81.4% (price as of 2026-10-02)
March 2, 2023 ATRA S 10b5-1 15,679 $3.63 $56,915 750,728 Direct -2.05% Disposed -89.6% (price as of 2026-10-02)
Nov. 16, 2022 ATRA S 10b5-1 15,591 $4.49 $70,004 441,696 Direct -3.41% Disposed -91.6% (price as of 2026-10-02)
Aug. 16, 2022 ATRA S 10b5-1 14,806 $5.04 $74,622 457,287 Direct -3.14% Disposed -92.5% (price as of 2026-10-02)
June 27, 2022 ATRA S 10b5-1 14,220 $7.20 $102,384 472,093 Direct -2.92% Disposed -94.7% (price as of 2026-10-02)
May 17, 2022 ATRA S 10b5-1 13,913 $5.32 $74,017 486,313 Direct -2.78% Disposed -92.9% (price as of 2026-10-02)
March 1, 2022 ATRA S 10b5-1 8,828 $9.86 $87,044 500,226 Direct -1.73% Disposed -96.2% (price as of 2026-10-02)
Nov. 16, 2021 ATRA S 10b5-1 8,402 $17.12 $143,842 328,489 Direct -2.49% Disposed -97.8% (price as of 2026-10-02)
Aug. 17, 2021 ATRA S 10b5-1 8,223 $12.53 $103,034 336,891 Direct -2.38% Disposed -97.0% (price as of 2026-10-02)
June 25, 2021 ATRA S 10b5-1 14,194 $16.32 $231,646 345,114 Direct -3.95% Disposed -97.7% (price as of 2026-10-02)
May 18, 2021 ATRA S 10b5-1 8,313 $14.55 $120,954 359,308 Direct -2.26% Disposed -97.4% (price as of 2026-10-02)
March 2, 2021 ATRA S 10b5-1 4,887 $16.74 $81,808 367,621 Direct -1.31% Disposed -97.7% (price as of 2026-10-02)
Nov. 17, 2020 ATRA S 10b5-1 4,716 $19.77 $93,235 255,321 Direct -1.81% Disposed -98.1% (price as of 2026-10-02)
Aug. 18, 2020 ATRA S 10b5-1 4,807 $12.09 $58,117 260,037 Direct -1.82% Disposed -96.9% (price as of 2026-10-02)
June 25, 2020 ATRA S 10b5-1 12,135 $12.92 $156,784 264,844 Direct -4.38% Disposed -97.1% (price as of 2026-10-02)
May 18, 2020 ATRA S 10b5-1 3,195 $11.22 $35,848 276,979 Direct -1.14% Disposed -96.6% (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Aug. 12, 2024 ATRA Employee Stock Option (Right to Buy) Common Stock (7,075) $427.63 Feb. 28, 2031 7,075 Disposed
Aug. 12, 2024 ATRA Employee Stock Option (Right to Buy) Common Stock (9,680) $303.75 Feb. 28, 2030 9,680 Disposed
Aug. 12, 2024 ATRA Employee Stock Option (Right to Buy) Common Stock (9,000) $510.75 June 24, 2029 9,000 Disposed
March 1, 2023 ATRA Employee Stock Option (Right to Buy) Common Stock (730,600) $3.91 Feb. 28, 2033 730,600 Acquired
March 1, 2022 ATRA Employee Stock Option (Right to Buy) Common Stock (339,419) $10.21 Feb. 28, 2032 339,419 Acquired
March 1, 2021 ATRA Employee Stock Option (Right to Buy) Common Stock (176,886) $17.10 Feb. 28, 2031 176,886 Acquired
March 1, 2020 ATRA Employee Stock Option (Right to Buy) Common Stock (242,000) $12.15 Feb. 28, 2030 242,000 Acquired
June 24, 2019 ATRA Employee Stock Option (Right to Buy) Common Stock (225,000) $20.43 June 24, 2029 225,000 Acquired

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

Compensation (DEF 14A)

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

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2024 $503,633 · $716,800 · · · $501,899 $1,722,332
2023 $723,450,717,938 · $12,696,201,843,569 $20,608,762,236,703 $235,121,349,611 · $1,105,810,307 $43,751,255,158,127
2021 · · · · · · · ·

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