Insider at

04

Insider transactions

05
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. 19, 2014 HALO S 75,000 $9.96 $747,000 179,876 Direct -29.43% Disposed 1003.0% (price as of 2026-10-02)
Sept. 16, 2013 HALO S 37,500 $9.16 $343,500 155,000 Direct -19.48% Disposed 1099.3% (price as of 2026-10-02)
Sept. 13, 2013 HALO S 37,500 $9.10 $341,250 192,500 Direct -16.30% Disposed 1107.3% (price as of 2026-10-02)
Nov. 14, 2008 NKTR S 760 $4.37 $3,321 313,880 Direct -0.24% Disposed -33.5% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 700 $8.92 $6,244 29,300 Direct -2.33% Disposed 1131.6% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 100 $8.94 $894 29,200 Direct -0.34% Disposed 1128.9% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 200 $9.00 $1,800 29,000 Direct -0.68% Disposed 1120.7% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 200 $9.01 $1,802 28,800 Direct -0.69% Disposed 1119.3% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 1,200 $9.02 $10,824 27,600 Direct -4.17% Disposed 1118.0% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 900 $9.03 $8,127 26,700 Direct -3.26% Disposed 1116.6% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 2,500 $9.04 $22,600 24,200 Direct -9.36% Disposed 1115.3% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 3,800 $9.05 $34,390 20,400 Direct -15.70% Disposed 1113.9% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 3,600 $9.06 $32,616 16,800 Direct -17.65% Disposed 1112.6% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 1,300 $9.07 $11,791 15,500 Direct -7.74% Disposed 1111.2% (price as of 2026-10-02)
Oct. 16, 2007 HALO S 10b5-1 500 $9.08 $4,540 15,000 Direct -3.23% Disposed 1109.9% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 390 $8.62 $3,362 44,610 Direct -0.87% Disposed 1174.5% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 710 $8.63 $6,127 43,900 Direct -1.59% Disposed 1173.0% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,700 $8.64 $14,688 42,200 Direct -3.87% Disposed 1171.5% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,100 $8.65 $9,515 41,100 Direct -2.61% Disposed 1170.1% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,400 $8.66 $12,124 39,700 Direct -3.41% Disposed 1168.6% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,000 $8.67 $8,670 38,700 Direct -2.52% Disposed 1167.1% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,300 $8.68 $11,284 37,400 Direct -3.36% Disposed 1165.7% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 400 $8.69 $3,476 37,000 Direct -1.07% Disposed 1164.2% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 2,200 $8.70 $19,140 34,800 Direct -5.95% Disposed 1162.8% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,200 $8.71 $10,452 33,600 Direct -3.45% Disposed 1161.3% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 1,300 $8.72 $11,336 32,300 Direct -3.87% Disposed 1159.9% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 400 $8.73 $3,492 31,900 Direct -1.24% Disposed 1158.4% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 800 $8.74 $6,992 31,100 Direct -2.51% Disposed 1157.0% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 300 $8.76 $2,628 30,800 Direct -0.96% Disposed 1154.1% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 400 $8.77 $3,508 30,400 Direct -1.30% Disposed 1152.7% (price as of 2026-10-02)
Oct. 9, 2007 HALO S 10b5-1 400 $8.78 $3,512 30,000 Direct -1.32% Disposed 1151.3% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 500 $8.79 $4,395 59,500 Direct -0.83% Disposed 1149.8% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 300 $8.80 $2,640 59,200 Direct -0.50% Disposed 1148.4% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 300 $8.81 $2,643 58,900 Direct -0.51% Disposed 1147.0% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 164 $8.82 $1,446 58,736 Direct -0.28% Disposed 1145.6% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 300 $8.83 $2,649 58,436 Direct -0.51% Disposed 1144.2% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 500 $8.84 $4,420 57,936 Direct -0.86% Disposed 1142.8% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 405 $8.85 $3,584 57,531 Direct -0.70% Disposed 1141.4% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 2,075 $8.86 $18,384 55,456 Direct -3.61% Disposed 1140.0% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 561 $8.87 $4,976 54,895 Direct -1.01% Disposed 1138.6% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 900 $8.88 $7,992 53,995 Direct -1.64% Disposed 1137.2% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 2,295 $8.89 $20,403 51,700 Direct -4.25% Disposed 1135.8% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 900 $8.90 $8,010 50,800 Direct -1.74% Disposed 1134.4% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 1,132 $8.91 $10,086 49,668 Direct -2.23% Disposed 1133.0% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 368 $8.92 $3,283 49,300 Direct -0.74% Disposed 1131.6% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 300 $8.93 $2,679 49,000 Direct -0.61% Disposed 1130.2% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 800 $8.94 $7,152 48,200 Direct -1.63% Disposed 1128.9% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 600 $8.95 $5,370 47,600 Direct -1.24% Disposed 1127.5% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 100 $8.96 $896 47,500 Direct -0.21% Disposed 1126.1% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 200 $8.97 $1,794 47,300 Direct -0.42% Disposed 1124.7% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 1,400 $8.98 $12,572 45,900 Direct -2.96% Disposed 1123.4% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 381 $8.99 $3,425 45,519 Direct -0.83% Disposed 1122.0% (price as of 2026-10-02)
Oct. 2, 2007 HALO S 10b5-1 519 $9.00 $4,671 45,000 Direct -1.14% Disposed 1120.7% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 100 $8.81 $881 74,900 Direct -0.13% Disposed 1147.0% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 600 $8.82 $5,292 74,300 Direct -0.80% Disposed 1145.6% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 1,400 $8.83 $12,362 72,900 Direct -1.88% Disposed 1144.2% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 500 $8.84 $4,420 72,400 Direct -0.69% Disposed 1142.8% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 400 $8.85 $3,540 72,000 Direct -0.55% Disposed 1141.4% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $8.86 $1,772 71,800 Direct -0.28% Disposed 1140.0% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 878 $8.87 $7,788 70,922 Direct -1.22% Disposed 1138.6% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $8.88 $1,776 70,722 Direct -0.28% Disposed 1137.2% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $8.89 $1,778 70,522 Direct -0.28% Disposed 1135.8% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $8.90 $1,780 70,322 Direct -0.28% Disposed 1134.4% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 300 $8.91 $2,673 70,022 Direct -0.43% Disposed 1133.0% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 700 $8.92 $6,244 69,322 Direct -1.00% Disposed 1131.6% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 522 $8.93 $4,661 68,800 Direct -0.75% Disposed 1130.2% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 1,000 $8.94 $8,940 67,800 Direct -1.45% Disposed 1128.9% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 700 $8.95 $6,265 67,100 Direct -1.03% Disposed 1127.5% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 396 $8.96 $3,548 66,704 Direct -0.59% Disposed 1126.1% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 1,559 $8.97 $13,984 65,145 Direct -2.34% Disposed 1124.7% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 500 $8.98 $4,490 64,645 Direct -0.77% Disposed 1123.4% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 204 $8.99 $1,834 64,441 Direct -0.32% Disposed 1122.0% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 1,441 $9.00 $12,969 63,000 Direct -2.24% Disposed 1120.7% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 1,100 $9.01 $9,911 61,900 Direct -1.75% Disposed 1119.3% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 900 $9.02 $8,118 61,000 Direct -1.45% Disposed 1118.0% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 300 $9.05 $2,715 60,700 Direct -0.49% Disposed 1113.9% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $9.06 $1,812 60,500 Direct -0.33% Disposed 1112.6% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $9.08 $1,816 60,300 Direct -0.33% Disposed 1109.9% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 100 $9.09 $909 60,200 Direct -0.17% Disposed 1108.6% (price as of 2026-10-02)
Sept. 25, 2007 HALO S 10b5-1 200 $9.10 $1,820 60,000 Direct -0.33% Disposed 1107.3% (price as of 2026-10-02)
Sept. 18, 2007 HALO S 10b5-1 100 $8.70 $870 92,371 Direct -0.11% Disposed 1162.8% (price as of 2026-10-02)
Sept. 18, 2007 HALO S 10b5-1 400 $8.75 $3,500 91,971 Direct -0.43% Disposed 1155.5% (price as of 2026-10-02)
Sept. 18, 2007 HALO S 10b5-1 100 $8.76 $876 91,871 Direct -0.11% Disposed 1154.1% (price as of 2026-10-02)
Sept. 18, 2007 HALO S 10b5-1 200 $8.77 $1,754 91,671 Direct -0.22% Disposed 1152.7% (price as of 2026-10-02)

Showing latest 100 of 469 transactions

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Aug. 19, 2014 HALO Option to Purchase Common Stock Common Stock (75,000) $2.05 Oct. 13, 2014 75,000 Disposed
Sept. 13, 2013 HALO Option to Purchase Common Stock (NSO) Common Stock (100,000) $0.39 Dec. 9, 2013 100,000 Disposed
Nov. 14, 2008 NKTR Restricted Stock Unit Common Stock (2,500) · Nov. 14, 2008 2,500 Disposed
May 8, 2008 HALO Options to purchase common stock Common Stock (10,000) $4.94 May 8, 2018 10,000 Acquired
Feb. 25, 2008 NKTR Employee Stock Option Common Stock (30,000) $6.46 Feb. 25, 2016 30,000 Acquired
Dec. 21, 2007 NKTR Employee Stock Option Common Stock (100,000) $6.98 Dec. 21, 2015 100,000 Acquired
May 15, 2007 HALO Options to purchase common stock. Common Stock (10,000) $10.37 May 15, 2017 10,000 Acquired
May 15, 2007 HALO Options to purchase common stock. Common Stock (10,000) $10.37 May 15, 2017 10,000 Acquired
May 14, 2007 NKTR Restricted Stock Unit Common Stock (3,000) $0.01 · 3,000 Disposed
April 2, 2007 NKTR Stock Option (Right to Buy) Common Stock (30,000) $13.02 April 2, 2015 30,000 Acquired
March 9, 2007 NKTR Restricted Stock Unit Common Stock (2,500) $0.01 · 2,500 Disposed
March 9, 2007 NKTR Restricted Stock Unit Common Stock (12,501) $0.01 · 12,501 Disposed
Jan. 26, 2007 NKTR Employee Stock Option (Right to Buy) Common Stock (930) $9.31 Jan. 28, 2007 930 Disposed
Jan. 26, 2007 NKTR Employee Stock Option (Right to Buy) Common Stock (13,070) $9.31 Jan. 28, 2007 13,070 Disposed
Jan. 5, 2007 NKTR Employee Stock Option (Right to Buy) Common Stock (1,000) $8.07 Jan. 7, 2007 1,000 Disposed
May 4, 2006 HALO Option to Purchase Common Stock Common Stock (10,000) $2.80 May 4, 2006 10,000 Acquired
March 10, 2006 NKTR Restricted Stock Unit Common Stock (15,000) $0.01 · 15,000 Acquired
March 3, 2006 NKTR Restricted Stock Units Common Stock (10,333) $0.01 · 10,333 Disposed
Jan. 19, 2006 NKTR Employee Stock Option (Right to Buy) Common Stock (23,355) $5.06 Jan. 22, 2006 23,355 Disposed
Jan. 18, 2006 NKTR Employee Stock Option (Right to Buy) Common Stock (16,645) $5.06 Jan. 22, 2006 16,645 Disposed
Jan. 18, 2006 NKTR Employee Stock Option (Right to Buy) Common Stock (18,000) $5.06 Jan. 22, 2006 18,000 Disposed
March 14, 2005 NKTR Restricted Stock Unit Common Stock (4,166) $0.00 · 4,166 Disposed
Feb. 9, 2005 NKTR Restricted Stock Unit Common Stock (10,000) $0.01 · 10,000 Acquired
Feb. 9, 2005 NKTR Stock Option (Right to Buy) Common Stock (20,000) $18.54 Feb. 9, 2015 20,000 Acquired
Jan. 14, 2005 NKTR Employee Stock Option (Right to Buy) Common Stock (31,600) $4.56 Jan. 18, 2005 31,600 Acquired
June 17, 2004 NKTR Employee Stock Option (Right to Buy) Common Stock [F1] · · 0 Acquired
June 17, 2004 NKTR Employee Stock Option (Right to Buy) Common Stock (30,000) $18.29 June 17, 2014 30,000 Acquired
March 1, 2004 NKTR Restricted Stock Unit [F3] Common Stock (25,000) $0.00 · 25,000 Acquired

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

Initial ownership (Form 3) 8 holdings

07

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

DateTickerSecuritySharesOwnership
Feb. 11, 2005 HALO Common Stock 83,051 Direct
Feb. 11, 2005 HALO Common Stock 232,830 Indirect
Feb. 11, 2005 HALO Options to Purchase Common Stock→ Common Stock (100,000) 100,000 Direct
Feb. 11, 2005 HALO Warrants to Purchase Common Stock→ Common Stock (31,590) 31,590 Direct
March 19, 2004 HALO Common Stock 83,051 Direct
March 19, 2004 HALO Common Stock 232,830 Indirect
March 19, 2004 HALO Options to Purchase Common Stock→ Common Stock (100,000) 100,000 Direct
March 19, 2004 HALO Options to Purchase Common Stock→ Common Stock (31,590) 31,590 Indirect

Compensation (DEF 14A)

08

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

NKTR

Ph.D. Chief Scientific Officer
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2006 $286,534 · · · $131,060 · $9,071 $822,397
2005 $274,583,261,354,248,896 $142,735,127,105,112,816 · · · · $779,367,408,270 ·
2004 $261,354,248,908,236,832 $12,710,511,282,290,920 · · · · $674,082,707,871 ·

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