Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 87 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.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 1, 2012 BKH A 265 $31.94 $8,464 23,147 Indirect +1.16% Acquired 120.7% (price as of 2026-10-05)
May 31, 2012 BKH A 466 $32.18 $14,996 22,882 Indirect +2.08% Acquired 119.0% (price as of 2026-10-05)
March 1, 2012 BKH A 249 $32.90 $8,192 22,416 Indirect +1.12% Acquired 114.2% (price as of 2026-10-05)
Feb. 29, 2012 BKH A 457 $32.84 $15,008 22,166 Indirect +2.11% Acquired 114.6% (price as of 2026-10-05)
Dec. 1, 2011 BKH A 238 $32.86 $7,821 21,710 Indirect +1.11% Acquired 114.5% (price as of 2026-10-05)
Nov. 30, 2011 BKH A 458 $32.75 $15,000 21,471 Indirect +2.18% Acquired 115.2% (price as of 2026-10-05)
Sept. 1, 2011 BKH A 246 $30.79 $7,574 21,013 Indirect +1.18% Acquired 128.9% (price as of 2026-10-05)
Aug. 31, 2011 BKH A 490 $30.60 $14,994 20,767 Indirect +2.42% Acquired 130.3% (price as of 2026-10-05)
June 1, 2011 BKH A 238 $30.75 $7,318 20,277 Indirect +1.19% Acquired 129.2% (price as of 2026-10-05)
May 31, 2011 BKH A 484 $31.02 $15,014 20,039 Indirect +2.48% Acquired 127.2% (price as of 2026-10-05)
March 1, 2011 BKH A 228 $30.88 $7,041 19,555 Indirect +1.18% Acquired 128.2% (price as of 2026-10-05)
Feb. 28, 2011 BKH A 460 $30.82 $14,177 19,327 Indirect +2.44% Acquired 128.7% (price as of 2026-10-05)
Dec. 1, 2010 BKH A 217 $30.94 $6,714 18,867 Indirect +1.16% Acquired 127.8% (price as of 2026-10-05)
Nov. 30, 2010 BKH A 412 $30.35 $12,504 18,650 Indirect +2.26% Acquired 132.2% (price as of 2026-10-05)
Sept. 1, 2010 BKH A 209 $31.08 $6,496 18,238 Indirect +1.16% Acquired 126.8% (price as of 2026-10-05)
Aug. 31, 2010 BKH A 411 $30.43 $12,507 18,030 Indirect +2.33% Acquired 131.6% (price as of 2026-10-05)
June 1, 2010 BKH A 221 $28.36 $6,268 17,619 Indirect +1.27% Acquired 148.5% (price as of 2026-10-05)
May 28, 2010 BKH A 436 $28.69 $12,509 17,398 Indirect +2.57% Acquired 145.7% (price as of 2026-10-05)
March 1, 2010 BKH A 215 $28.08 $6,037 16,962 Indirect +1.28% Acquired 151.0% (price as of 2026-10-05)
Feb. 26, 2010 BKH A 449 $27.87 $12,514 16,748 Indirect +2.75% Acquired 152.9% (price as of 2026-10-05)
Dec. 1, 2009 BKH A 239 $23.82 $5,693 16,299 Indirect +1.49% Acquired 195.9% (price as of 2026-10-05)
Nov. 30, 2009 BKH A 530 $23.57 $12,492 16,060 Indirect +3.41% Acquired 199.0% (price as of 2026-10-05)
Sept. 1, 2009 BKH A 214 $25.41 $5,438 15,529 Indirect +1.40% Acquired 177.4% (price as of 2026-10-05)
Aug. 31, 2009 BKH A 489 $25.58 $12,509 15,315 Indirect +3.30% Acquired 175.5% (price as of 2026-10-05)
June 1, 2009 BKH A 234 $22.17 $5,188 14,827 Indirect +1.60% Acquired 217.9% (price as of 2026-10-05)
May 29, 2009 BKH A 584 $21.40 $12,498 14,593 Indirect +4.17% Acquired 229.3% (price as of 2026-10-05)
March 2, 2009 BKH A 283 $17.20 $4,868 14,009 Indirect +2.06% Acquired 309.8% (price as of 2026-10-05)
Feb. 27, 2009 BKH A 702 $17.81 $12,503 13,726 Indirect +5.39% Acquired 295.7% (price as of 2026-10-05)
Dec. 1, 2008 BKH A 179 $25.10 $4,493 13,024 Indirect +1.39% Acquired 180.8% (price as of 2026-10-05)
Nov. 30, 2008 BKH A 484 $25.81 $12,492 12,845 Indirect +3.92% Acquired 173.1% (price as of 2026-10-05)
Sept. 2, 2008 BKH A 126 $33.88 $4,269 12,360 Indirect +1.03% Acquired 108.0% (price as of 2026-10-05)
Aug. 29, 2008 BKH A 370 $33.81 $12,510 12,234 Indirect +3.12% Acquired 108.5% (price as of 2026-10-05)
June 2, 2008 BKH A 117 $35.20 $4,118 11,864 Indirect +1.00% Acquired 100.2% (price as of 2026-10-05)
May 30, 2008 BKH A 355 $35.24 $12,510 11,748 Indirect +3.12% Acquired 100.0% (price as of 2026-10-05)
March 3, 2008 BKH A 109 $36.29 $3,956 11,393 Indirect +0.97% Acquired 94.2% (price as of 2026-10-05)
Feb. 29, 2008 BKH A 317 $35.76 $11,336 11,284 Indirect +2.89% Acquired 97.1% (price as of 2026-10-05)
Dec. 3, 2007 BKH A 90 $42.50 $3,825 10,967 Indirect +0.83% Acquired 65.8% (price as of 2026-10-05)
Nov. 30, 2007 BKH A 216 $41.66 $8,999 10,877 Indirect +2.03% Acquired 69.2% (price as of 2026-10-05)
Sept. 4, 2007 BKH A 86 $42.03 $3,615 10,661 Indirect +0.81% Acquired 67.7% (price as of 2026-10-05)
Aug. 31, 2007 BKH A 218 $41.19 $8,979 10,576 Indirect +2.10% Acquired 71.1% (price as of 2026-10-05)
June 1, 2007 BKH A 84 $41.38 $3,476 10,357 Indirect +0.82% Acquired 70.3% (price as of 2026-10-05)
May 31, 2007 BKH A 220 $40.99 $9,018 10,273 Indirect +2.19% Acquired 71.9% (price as of 2026-10-05)
March 1, 2007 BKH A 93 $36.22 $3,368 10,053 Indirect +0.93% Acquired 94.6% (price as of 2026-10-05)
Feb. 28, 2007 BKH A 232 $35.98 $8,347 9,960 Indirect +2.38% Acquired 95.9% (price as of 2026-10-05)
Dec. 1, 2006 BKH A 89 $35.67 $3,175 9,728 Indirect +0.92% Acquired 97.6% (price as of 2026-10-05)
Nov. 30, 2006 BKH A 196 $35.71 $6,999 9,639 Indirect +2.08% Acquired 97.4% (price as of 2026-10-05)
Sept. 1, 2006 BKH A 88 $35.18 $3,096 9,443 Indirect +0.94% Acquired 100.3% (price as of 2026-10-05)
Aug. 31, 2006 BKH A 201 $34.81 $6,997 9,355 Indirect +2.20% Acquired 102.5% (price as of 2026-10-05)
June 1, 2006 BKH A 88 $34.11 $3,002 9,154 Indirect +0.97% Acquired 106.6% (price as of 2026-10-05)
June 1, 2006 BKH A 207 $33.83 $7,003 9,067 Indirect +2.34% Acquired 108.3% (price as of 2026-10-05)
March 1, 2006 BKH A 83 $34.80 $2,888 8,860 Indirect +0.95% Acquired 102.5% (price as of 2026-10-05)
Feb. 28, 2006 BKH A 202 $34.57 $6,983 8,776 Indirect +2.36% Acquired 103.9% (price as of 2026-10-05)
Dec. 1, 2005 BKH A 73 $37.23 $2,718 8,574 Indirect +0.86% Acquired 89.3% (price as of 2026-10-05)
Nov. 30, 2005 BKH A 192 $36.55 $7,018 8,501 Indirect +2.31% Acquired 92.8% (price as of 2026-10-05)
Sept. 1, 2005 BKH A 63 $41.79 $2,633 8,309 Indirect +0.76% Acquired 68.7% (price as of 2026-10-05)
Aug. 31, 2005 BKH A 168 $41.65 $6,997 8,246 Indirect +2.08% Acquired 69.2% (price as of 2026-10-05)
June 1, 2005 BKH A 68 $37.45 $2,547 8,078 Indirect +0.85% Acquired 88.2% (price as of 2026-10-05)
May 31, 2005 BKH A 34 $36.62 $1,245 8,010 Indirect +0.43% Acquired 92.5% (price as of 2026-10-05)
April 29, 2005 BKH A 36 $34.28 $1,234 7,976 Indirect +0.45% Acquired 105.6% (price as of 2026-10-05)
March 31, 2005 BKH A 38 $33.07 $1,257 7,939 Indirect +0.48% Acquired 113.1% (price as of 2026-10-05)
March 1, 2005 BKH A 78 $32.03 $2,498 7,901 Indirect +1.00% Acquired 120.0% (price as of 2026-10-05)
Feb. 28, 2005 BKH A 39 $31.70 $1,236 7,823 Indirect +0.50% Acquired 122.3% (price as of 2026-10-05)
Jan. 31, 2005 BKH A 42 $29.79 $1,251 7,784 Indirect +0.54% Acquired 136.6% (price as of 2026-10-05)
Dec. 31, 2004 BKH A 41 $30.68 $1,258 7,742 Indirect +0.53% Acquired 129.7% (price as of 2026-10-05)
Dec. 1, 2004 BKH A 78 $30.45 $2,375 7,701 Indirect +1.02% Acquired 131.5% (price as of 2026-10-05)
Nov. 30, 2004 BKH A 41 $30.71 $1,259 7,623 Indirect +0.54% Acquired 129.5% (price as of 2026-10-05)
Oct. 29, 2004 BKH A 42 $29.46 $1,237 7,583 Indirect +0.56% Acquired 139.2% (price as of 2026-10-05)
Sept. 30, 2004 BKH A 45 $27.78 $1,250 7,540 Indirect +0.60% Acquired 153.7% (price as of 2026-10-05)
Sept. 1, 2004 BKH A 81 $28.42 $2,302 7,495 Indirect +1.09% Acquired 148.0% (price as of 2026-10-05)
Aug. 31, 2004 BKH A 45 $27.85 $1,253 7,414 Indirect +0.61% Acquired 153.1% (price as of 2026-10-05)
July 30, 2004 BKH A 45 $27.62 $1,243 7,370 Indirect +0.61% Acquired 155.2% (price as of 2026-10-05)
June 30, 2004 BKH A 40 $31.50 $1,260 7,324 Indirect +0.55% Acquired 123.7% (price as of 2026-10-05)
June 1, 2004 BKH A 75 $29.78 $2,234 7,285 Indirect +1.04% Acquired 136.7% (price as of 2026-10-05)
May 28, 2004 BKH A 43 $29.30 $1,260 7,210 Indirect +0.60% Acquired 140.5% (price as of 2026-10-05)
April 30, 2004 BKH A 41 $30.59 $1,254 7,167 Indirect +0.58% Acquired 130.4% (price as of 2026-10-05)
March 31, 2004 BKH A 39 $31.87 $1,243 7,126 Indirect +0.55% Acquired 121.1% (price as of 2026-10-05)
March 1, 2004 BKH A 71 $30.42 $2,160 7,087 Indirect +1.01% Acquired 131.7% (price as of 2026-10-05)
Feb. 27, 2004 BKH A 41 $30.60 $1,255 7,015 Indirect +0.59% Acquired 130.3% (price as of 2026-10-05)
Jan. 31, 2004 BKH A 42 $29.80 $1,252 6,974 Indirect +0.61% Acquired 136.5% (price as of 2026-10-05)
Dec. 31, 2003 BKH A 42 $29.83 $1,253 6,933 Indirect +0.61% Acquired 136.3% (price as of 2026-10-05)
Dec. 1, 2003 BKH A 64 $32.24 $2,063 6,891 Indirect +0.94% Acquired 118.6% (price as of 2026-10-05)
Nov. 30, 2003 BKH A 39 $32.26 $1,258 6,827 Indirect +0.57% Acquired 118.5% (price as of 2026-10-05)
Oct. 31, 2003 BKH A 39 $32.17 $1,255 6,788 Indirect +0.58% Acquired 119.1% (price as of 2026-10-05)
Sept. 30, 2003 BKH A 41 $30.86 $1,265 6,749 Indirect +0.61% Acquired 128.4% (price as of 2026-10-05)
Sept. 2, 2003 BKH A 62 $32.40 $2,009 6,709 Indirect +0.93% Acquired 117.5% (price as of 2026-10-05)
Aug. 31, 2003 BKH A 39 $32.41 $1,264 6,647 Indirect +0.59% Acquired 117.5% (price as of 2026-10-05)
July 31, 2003 BKH A 41 $30.69 $1,258 6,609 Indirect +0.62% Acquired 129.7% (price as of 2026-10-05)

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
June 1, 2012 BKH Phantom Stock Unit Common Stock (265) · · 265 Acquired
May 31, 2012 BKH Phantom Stock Unit Common Stock (466) · · 466 Acquired
March 1, 2012 BKH Phantom Stock Unit Common Stock (249) · · 249 Acquired
Feb. 29, 2012 BKH Phantom Stock Unit Common Stock (457) · · 457 Acquired
Dec. 1, 2011 BKH Phantom Stock Unit Common Stock (238) · · 238 Acquired
Nov. 30, 2011 BKH Phantom Stock Unit Common Stock (458) · · 458 Acquired
Sept. 1, 2011 BKH Phantom Stock Unit Common Stock (246) · · 246 Acquired
Aug. 31, 2011 BKH Phantom Stock Unit Common Stock (490) · · 490 Acquired
June 1, 2011 BKH Phantom Stock Unit Common Stock (238) · · 238 Acquired
May 31, 2011 BKH Phantom Stock Unit Common Stock (484) · · 484 Acquired
March 1, 2011 BKH Phantom Stock Unit Common Stock (228) · · 228 Acquired
Feb. 28, 2011 BKH Phantom Stock Unit Common Stock (460) · · 460 Acquired
Dec. 1, 2010 BKH Phantom Stock Unit Common Stock (217) · · 217 Acquired
Nov. 30, 2010 BKH Phantom Stock Unit Common Stock (412) · · 412 Acquired
Sept. 1, 2010 BKH Phantom Stock Unit Common Stock (209) · · 209 Acquired
Aug. 31, 2010 BKH Phantom Stock Unit Common Stock (411) · · 411 Acquired
June 1, 2010 BKH Phantom Stock Unit Common Stock (221) · · 221 Acquired
May 28, 2010 BKH Phantom Stock Unit Common Stock (436) · · 436 Acquired
March 1, 2010 BKH Phantom Stock Unit Common Stock (215) · · 215 Acquired
Feb. 26, 2010 BKH Phantom Stock Unit Common Stock (449) · · 449 Acquired
Dec. 1, 2009 BKH Phantom Stock Unit Common Stock (239) · · 239 Acquired
Nov. 30, 2009 BKH Phantom Stock Unit Common Stock (530) · · 530 Acquired
Sept. 1, 2009 BKH Phantom Stock Unit Common Stock (214) · · 214 Acquired
Aug. 31, 2009 BKH Phantom Stock Unit Common Stock (489) · · 489 Acquired
June 1, 2009 BKH Phantom Stock Unit Common Stock (234) · · 234 Acquired
May 29, 2009 BKH Phantom Stock Unit Common Stock (584) · · 584 Acquired
March 2, 2009 BKH Phantom Stock Unit Common Stock (283) · · 283 Acquired
Feb. 27, 2009 BKH Phantom Stock Unit Common Stock (702) · · 702 Acquired
Dec. 1, 2008 BKH Phantom Stock Unit Common Stock (179) · · 179 Acquired
Nov. 30, 2008 BKH Phantom Stock Unit Common Stock (484) · · 484 Acquired
Sept. 2, 2008 BKH Phantom Stock Unit Common Stock (126) · · 126 Acquired
Aug. 29, 2008 BKH Phantom Stock Unit Common Stock (370) · · 370 Acquired
June 2, 2008 BKH Phantom Stock Unit Common Stock (117) · · 117 Acquired
May 30, 2008 BKH Phantom Stock Unit Common Stock (355) · · 355 Acquired
March 3, 2008 BKH Phantom Stock Unit Common Stock (109) · · 109 Acquired
Feb. 29, 2008 BKH Phantom Stock Unit Common Stock (317) · · 317 Acquired
Dec. 3, 2007 BKH Phantom Stock Unit Common Stock (90) · · 90 Acquired
Nov. 30, 2007 BKH Phantom Stock Unit Common Stock (216) · · 216 Acquired
Sept. 4, 2007 BKH Phantom Stock Unit Common Stock (0) · · 86 Acquired
Aug. 31, 2007 BKH Phantom Stock Unit Common Stock (0) · · 218 Acquired
June 1, 2007 BKH Phantom Stock Unit Common Stock (0) · · 84 Acquired
May 31, 2007 BKH Phantom Stock Unit Common Stock (0) · · 220 Acquired
March 1, 2007 BKH Phantom Stock Unit Common Stock (0) · · 93 Acquired
Feb. 28, 2007 BKH Phantom Stock Unit Common Stock (0) · · 232 Acquired
Dec. 1, 2006 BKH Phantom Stock Unit Common Stock (0) · · 89 Acquired
Nov. 30, 2006 BKH Phantom Stock Unit Common Stock (0) · · 196 Acquired
Sept. 1, 2006 BKH Phantom Stock Unit Common Stock (0) · · 88 Acquired
Aug. 31, 2006 BKH Phantom Stock Unit Common Stock (0) · · 201 Acquired
June 1, 2006 BKH Phantom Stock Unit Common Stock (0) · · 88 Acquired
June 1, 2006 BKH Phantom Stock Unit Common Stock (0) · · 207 Acquired
March 1, 2006 BKH Phantom Stock Unit Common Stock (83) · · 83 Acquired
Feb. 28, 2006 BKH Phantom Stock Unit Common Stock (202) · · 202 Acquired
Dec. 1, 2005 BKH Phantom stock Unit Common Stock (0) · · 73 Acquired
Nov. 30, 2005 BKH Phantom Stock Unit Common Stock (0) · · 192 Acquired
Sept. 1, 2005 BKH Phantom Stock Unit Common Stock (0) · · 63 Acquired
Aug. 31, 2005 BKH Phantom Stock Unit Common Stock (0) · · 168 Acquired
June 1, 2005 BKH Phantom Stock Unit Common Stock (0) · · 68 Acquired
May 31, 2005 BKH Phantom Stock Unit Common Stock (0) · · 34 Acquired
April 29, 2005 BKH Phantom Stock Unit Common Stock (0) · · 36 Acquired
March 31, 2005 BKH Phantom Stock Unit Common Stock (0) · · 38 Acquired
March 1, 2005 BKH Phantom Stock Unit Common Stock (0) · · 78 Acquired
Feb. 28, 2005 BKH Phantom Stock Unit Common Stock (0) · · 39 Acquired
Jan. 31, 2005 BKH Phantom Stock Unit Common Stock (0) · · 42 Acquired
Dec. 31, 2004 BKH Phantom Stock Unit Common Stock (0) · · 41 Acquired
Dec. 1, 2004 BKH Phantom Stock Unit Common Stock (0) · · 78 Acquired
Nov. 30, 2004 BKH Phantom Stock Unit Common Stock (0) · · 41 Acquired
Oct. 29, 2004 BKH Phantom Stock Unit Common Stock (0) · · 42 Acquired
Sept. 30, 2004 BKH Phantom Stock Unit Common Stock (0) · · 45 Acquired
Sept. 1, 2004 BKH Phantom Stock Unit Common Stock (0) · · 81 Acquired
Aug. 31, 2004 BKH Phantom Stock Unit Common Stock (0) · · 45 Acquired
July 30, 2004 BKH Phantom Stock Unit Common Stock (0) · · 45 Acquired
June 30, 2004 BKH Phantom Stock Unit Common Stock (0) · · 40 Acquired
June 1, 2004 BKH Phantom Stock Unit Common Stock (0) · · 75 Acquired
May 28, 2004 BKH Phantom Stock Unit Common Stock (0) · · 43 Acquired
April 30, 2004 BKH Phantom Stock Unit Common Stock (0) · · 41 Acquired
March 31, 2004 BKH Phantom Stock Unit Common Stock (0) · · 39 Acquired
March 1, 2004 BKH Phantom Stock Unit Common Stock (0) · · 71 Acquired
Feb. 27, 2004 BKH Phantom Stock Unit Common Stock (0) · · 41 Acquired
Jan. 31, 2004 BKH Phantom Stock Unit Common Stock (0) · · 42 Acquired
Dec. 31, 2003 BKH Phantom Stock Unit Common Stock (0) · · 42 Acquired
Dec. 1, 2003 BKH Phantom Stock Unit Common Stock (0) · · 64 Acquired
Nov. 30, 2003 BKH Phantom Stock Unit Common Stock (0) · · 39 Acquired
Oct. 31, 2003 BKH Phantom Stock Unit Common Stock (0) · · 39 Acquired
Sept. 30, 2003 BKH Phantom Stock Unit Common Stock (0) · · 41 Acquired
Sept. 2, 2003 BKH Phantom Stock Unit Common Stock (0) · Aug. 8, 1988 62 Acquired
Aug. 31, 2003 BKH Phantom Stock Unit Common Stock (0) · Aug. 8, 1988 39 Acquired
July 31, 2003 BKH Phantom Stock Unit Common Stock (0) · Aug. 8, 1988 41 Acquired

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