David Hallal

CIK 1457477 · View on SEC EDGAR ↗

Insider

First SEC filing: June 4, 2026 · Latest: June 4, 2026

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Insider at

Insider transactions

0 buys (P) 2 sells (S) Net: $-3,970,701 + 33 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

33 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 16, 2026 SRRK S 30,615 $49.57 $1,517,586 1,639,034 Direct -1.83% Disposed 11.4% (price as of 2026-08-19)
Jan. 13, 2026 SRRK S 57,450 $42.70 $2,453,115 1,541,645 Direct -3.59% Disposed 29.4% (price as of 2026-08-19)
Oct. 19, 2022 KLRS S 600,000 $8.45 $5,070,000 138,153 Indirect -81.28% Disposed -97.9% (price as of 2026-08-19)
Sept. 29, 2022 KLRS S 400,000 $7.35 $2,940,000 720,965 Indirect -35.68% Disposed -97.6% (price as of 2026-08-19)
July 21, 2022 KLRS S 10b5-1 4,227 $5.33 $22,530 2,073,662 Direct -0.20% Disposed -96.7% (price as of 2026-08-19)
June 3, 2022 KLRS S 10b5-1 65,725 $3.67 $241,211 2,077,889 Direct -3.07% Disposed -95.1% (price as of 2026-08-19)
April 21, 2022 KLRS S 10b5-1 4,227 $5.87 $24,812 2,143,614 Direct -0.20% Disposed -97.0% (price as of 2026-08-19)
March 11, 2022 KLRS S 10b5-1 25,244 $7.37 $186,048 2,147,841 Direct -1.16% Disposed -97.6% (price as of 2026-08-19)
March 10, 2022 KLRS S 10b5-1 40,481 $7.55 $305,632 2,173,085 Direct -1.83% Disposed -97.6% (price as of 2026-08-19)
Jan. 24, 2022 KLRS S 17,100 $8.01 $136,971 2,213,566 Direct -0.77% Disposed -97.8% (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
June 3, 2026 KLRS Stock Option (Right to Buy) Common Stock (9,000) $4.72 June 2, 2036 9,000 Acquired
May 2, 2025 SRRK Stock Option (Right to Buy) Common Stock (275,167) $32.91 May 2, 2035 275,167 Acquired
April 10, 2025 KLRS Stock Option (Right to Buy) Common Stock (18,000) $7.31 April 9, 2035 18,000 Acquired
June 14, 2023 SEER Stock Option (right to buy) Class A Common Stock (34,735) $4.33 June 14, 2033 34,735 Acquired
June 16, 2022 SRRK Stock Option (Right to Buy) Common Stock (14,000) $4.86 June 16, 2032 14,000 Acquired
June 15, 2022 SEER Stock Option (right to buy) Class A Common Stock (29,640) $7.33 June 15, 2031 29,640 Acquired
May 26, 2022 SRRK Stock Option (Right to Buy) Common Stock (28,000) $4.75 May 26, 2032 28,000 Acquired
May 17, 2022 KLRS Stock Option (Right to Buy) Common Stock (27,500) $4.60 May 16, 2032 27,500 Acquired
June 17, 2021 SEER Stock Option (right to buy) Class A Common Stock (15,000) $33.74 June 17, 2031 15,000 Acquired
May 27, 2021 SRRK Stock Option (Right to Buy) Common Stock (7,800) $26.78 May 27, 2031 7,800 Acquired
May 25, 2021 KLRS Stock Option (Right to Buy) Common Stock (22,500) $21.51 May 24, 2031 22,500 Acquired
Jan. 21, 2021 KLRS Stock Option (Right to Buy) Common Stock (273,000) $45.04 Jan. 21, 2031 273,000 Acquired
Aug. 3, 2020 KLRS Series A-4 Convertible Preferred Stock Common Stock (738,153) — — 1,100,000 Disposed
Aug. 3, 2020 KLRS Series A-4 Convertible Preferred Stock Common Stock (156,577) — — 233,333 Disposed
Aug. 3, 2020 KLRS Series A-2 Convertible Preferred Stock Common Stock (13,420,970) — — 20,000,000 Disposed
July 29, 2020 KLRS Stock Option (Right to Buy) Common Stock (1,101,000) $17.00 July 29, 2030 1,101,000 Acquired
June 16, 2020 SRRK Stock Option (right to buy) Common Stock (7,000) $17.65 June 16, 2030 7,000 Acquired
June 16, 2020 SRRK Stock Option (right to buy) Common Stock (13,000) $17.65 June 16, 2030 13,000 Acquired
May 21, 2019 SRRK Stock Option (Right to Buy) Common Stock (10,158) $21.21 May 21, 2029 10,158 Acquired
June 22, 2018 SRRK Stock Option (right to buy) Common Stock (20,316) $21.62 June 22, 2028 20,316 Acquired

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

Initial ownership (Form 3) 11 holdings

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

Date Ticker Security Shares Ownership
Dec. 3, 2020 SEER Class A Common Stock 263,562 Direct
Dec. 3, 2020 SEER Stock Option (right to buy)→ Class A Common Stock (101,886) 101,886 Direct
Dec. 3, 2020 SEER Stock Option (right to buy)→ Class A Common Stock (51,753) 51,753 Direct
Dec. 3, 2020 SEER Stock Option (right to buy)→ Class A Common Stock (38,422) 38,422 Direct
July 30, 2020 KLRS Common Stock 2,083,666 Direct
July 30, 2020 KLRS Common Stock 964,388 Indirect
July 30, 2020 KLRS Series A-2 Convertible Preferred Stock→ Common Stock (13,420,970) 13,420,970 Indirect
July 30, 2020 KLRS Series A-4 Convertible Preferred Stock→ Common Stock (156,577) 156,577 Indirect
July 30, 2020 KLRS Series A-4 Convertible Preferred Stock→ Common Stock (738,153) 738,153 Indirect
May 23, 2018 SRRK Common Stock 292,595 Direct
May 23, 2018 SRRK Stock Option (Right to Buy)→ Common Stock (110,924) 110,924 Direct

Compensation (DEF 14A)

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

KLRS

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2021 $219,000 — — — $81,562 — $95,042 $16,797,713
2020 $566,500 — — — $410,713 — $3,805 $15,258,586

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