John B Neff

CIK 1203686 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 30, 2004 · Latest: Jan. 30, 2004

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 5 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

5 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 30, 2004 AMKR P 4,900 $8.45 $41,405 200,000 Direct +2.51% Acquired 498.3% (price as of 2026-08-20)
April 30, 2004 AMKR P 100 $8.40 $840 195,100 Direct +0.05% Acquired 501.9% (price as of 2026-08-20)
April 30, 2004 AMKR P 2,700 $8.49 $22,923 195,000 Direct +1.40% Acquired 495.5% (price as of 2026-08-20)
April 30, 2004 AMKR P 4,760 $8.55 $40,698 192,300 Direct +2.54% Acquired 491.3% (price as of 2026-08-20)
April 30, 2004 AMKR P 6,600 $8.30 $54,780 187,540 Direct +3.65% Acquired 509.2% (price as of 2026-08-20)
April 30, 2004 AMKR P 940 $8.43 $7,924 180,940 Direct +0.52% Acquired 499.8% (price as of 2026-08-20)
April 30, 2004 AMKR P 5,100 $8.45 $43,095 180,000 Direct +2.92% Acquired 498.3% (price as of 2026-08-20)
April 30, 2004 AMKR P 2,400 $8.49 $20,376 174,900 Direct +1.39% Acquired 495.5% (price as of 2026-08-20)
April 30, 2004 AMKR P 63,246 $8.55 $540,753 172,500 Direct +57.89% Acquired 491.3% (price as of 2026-08-20)
April 30, 2004 AMKR P 1,700 $8.27 $14,059 109,254 Direct +1.58% Acquired 511.4% (price as of 2026-08-20)
April 30, 2004 AMKR P 6,654 $8.30 $55,228 107,554 Direct +6.59% Acquired 509.2% (price as of 2026-08-20)
April 30, 2004 AMKR P 900 $8.43 $7,587 100,900 Direct +0.90% Acquired 499.8% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 3,100 $18.76 $58,156 116,900 Direct -2.58% Disposed 169.5% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 100 $18.91 $1,891 106,981 Direct -0.09% Disposed 167.4% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 200 $18.89 $3,778 107,081 Direct -0.19% Disposed 167.7% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 1,200 $18.85 $22,620 107,281 Direct -1.11% Disposed 168.2% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 1,519 $18.84 $28,618 108,481 Direct -1.38% Disposed 168.4% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 6,500 $18.75 $121,875 110,200 Direct -5.57% Disposed 169.7% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 200 $18.78 $3,756 116,700 Direct -0.17% Disposed 169.2% (price as of 2026-08-20)
Sept. 9, 2003 AMKR S 100 $18.66 $1,866 130,000 Direct -0.08% Disposed 171.0% (price as of 2026-08-20)
Sept. 8, 2003 AMKR S None $18.56 — 120,000 Direct — Disposed 172.4% (price as of 2026-08-20)
Sept. 8, 2003 AMKR S 2,400 $18.55 $44,520 121,200 Direct -1.94% Disposed 172.6% (price as of 2026-08-20)
Sept. 8, 2003 AMKR S 100 $18.55 $1,855 123,600 Direct -0.08% Disposed 172.6% (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
July 29, 2004 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (10,000) $4.11 July 29, 2014 10,000 Acquired

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