SEC Insider Transactions from van Niekerk Teresa.

Last updated: 2026-03-14 11:39 UTC | Total transactions: 96

van Niekerk Teresa has filed 96 insider transactions across 1 company since February 2023.

Most recent transaction: a grant/award of 9 shares of Allison Transmission Holdings Inc ($ALSN) on December 05, 2025.

Activity breakdown: 0 open-market purchases and 5 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Dec. 5, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 9 $0.00 80.0000 85,000,000 12.68% 0.00%
Aug. 29, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 10 $0.00 71.0000 88,000,000 16.39% 0.00%
May 30, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 8 $0.00 61.0000 88,000,000 15.09% 0.00%
March 14, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 9 $0.00 53.0000 88,000,000 20.45% 0.00%
Feb. 28, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 2357 $101.75 20,875.0000 88,000,000 10.15% 0.00%
Feb. 28, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Performance Stock Units 6604 $0.00 0.0000 88,000,000 100.00% 0.01%
Feb. 28, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 6604 $0.00 23,232.0000 88,000,000 39.72% 0.01%
Feb. 27, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer S Common Stock 8191 $101.09 16,628.0000 88,000,000 33.00% 0.01%
Feb. 27, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 2887 $0.00 2,887.0000 88,000,000 50.00% 0.00%
Feb. 27, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 3303 $0.00 0.0000 88,000,000 100.00% 0.00%
Feb. 27, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 2887 $47.35 21,516.0000 88,000,000 15.50% 0.00%
Feb. 27, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 3303 $39.42 24,819.0000 88,000,000 15.35% 0.00%
Feb. 21, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 252 $100.67 17,119.0000 88,000,000 1.45% 0.00%
Feb. 22, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 962 $0.00 18,081.0000 88,000,000 5.62% 0.00%
Feb. 22, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 28 $0.00 18,109.0000 88,000,000 0.15% 0.00%
Feb. 22, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 305 $100.67 17,804.0000 88,000,000 1.68% 0.00%
Feb. 23, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 1101 $0.00 18,905.0000 88,000,000 6.18% 0.00%
Feb. 23, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 54 $0.00 18,959.0000 88,000,000 0.29% 0.00%
Feb. 23, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 330 $100.67 18,629.0000 88,000,000 1.74% 0.00%
Feb. 21, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 736 $0.00 1,472.0000 88,000,000 33.33% 0.00%
Feb. 21, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 7 $0.00 126.0000 88,000,000 5.26% 0.00%
Feb. 22, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 962 $0.00 963.0000 88,000,000 49.97% 0.00%
Feb. 22, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 28 $0.00 98.0000 88,000,000 22.22% 0.00%
Feb. 23, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 1101 $0.00 0.0000 88,000,000 100.00% 0.00%
Feb. 23, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 54 $0.00 44.0000 88,000,000 55.10% 0.00%
Feb. 21, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 736 $0.00 17,364.0000 88,000,000 4.43% 0.00%
Feb. 21, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 7 $0.00 17,371.0000 88,000,000 0.04% 0.00%
Feb. 19, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Employee Stock Option (right to buy) 3543 $0.00 3,543.0000 88,000,000 9999.99% 0.00%
Feb. 19, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Restricted Stock Units 1181 $0.00 1,181.0000 88,000,000 9999.99% 0.00%
Feb. 10, 2025 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Performance Stock Units 6604 $0.00 6,604.0000 88,000,000 9999.99% 0.01%
Nov. 27, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 10 $0.00 133.0000 88,000,000 8.13% 0.00%
Aug. 30, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 13 $0.00 123.0000 91,000,000 11.82% 0.00%
May 31, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 16 $0.00 110.0000 91,000,000 17.02% 0.00%
May 7, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer S Common Stock 7700 $75.70 16,628.0000 91,000,000 31.65% 0.01%
March 15, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 16 $0.00 94.0000 91,000,000 20.51% 0.00%
Feb. 28, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Performance Stock Units 4498 $0.00 0.0000 91,000,000 100.00% 0.00%
Feb. 28, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 1282 $75.59 24,328.0000 91,000,000 5.01% 0.00%
Feb. 28, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 4498 $0.00 25,610.0000 91,000,000 21.31% 0.00%
Feb. 23, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 324 $74.63 18,404.0000 91,000,000 1.73% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 2761 $43.13 21,165.0000 91,000,000 15.00% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 3302 $39.42 24,467.0000 91,000,000 15.60% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 2886 $47.35 27,353.0000 91,000,000 11.80% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer S Common Stock 6241 $74.87 21,112.0000 91,000,000 22.82% 0.01%
Feb. 23, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 1101 $0.00 1,101.0000 91,000,000 50.00% 0.00%
Feb. 23, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 42 $0.00 78.0000 91,000,000 35.00% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 2761 $0.00 0.0000 91,000,000 100.00% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 3302 $0.00 3,303.0000 91,000,000 49.99% 0.00%
Feb. 26, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 2886 $0.00 5,774.0000 91,000,000 33.33% 0.00%
Feb. 23, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 1101 $0.00 18,686.0000 91,000,000 6.26% 0.00%
Feb. 23, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 42 $0.00 18,728.0000 91,000,000 0.22% 0.00%
Feb. 22, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 962 $0.00 17,888.0000 91,000,000 5.68% 0.00%
Feb. 22, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 17 $0.00 17,905.0000 91,000,000 0.10% 0.00%
Feb. 22, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 320 $73.39 17,585.0000 91,000,000 1.79% 0.00%
Feb. 21, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Employee Stock Option (right to buy) 6625 $0.00 6,625.0000 91,000,000 9999.99% 0.01%
Feb. 21, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Restricted Stock Units 2208 $0.00 2,208.0000 91,000,000 9999.99% 0.00%
Feb. 22, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 962 $0.00 1,925.0000 91,000,000 33.32% 0.00%
Feb. 22, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 17 $0.00 120.0000 91,000,000 12.41% 0.00%
Feb. 10, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer F Common Stock 329 $61.70 16,926.0000 91,000,000 1.91% 0.00%
Feb. 10, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Restricted Stock Units 920 $0.00 0.0000 91,000,000 100.00% 0.00%
Feb. 10, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Dividend Equivalent Rights 52 $0.00 137.0000 91,000,000 27.51% 0.00%
Feb. 12, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Pefromance Stock Units 4498 $0.00 4,498.0000 91,000,000 9999.99% 0.00%
Feb. 10, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 52 $0.00 17,255.0000 91,000,000 0.30% 0.00%
Feb. 10, 2024 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 920 $0.00 17,203.0000 91,000,000 5.65% 0.00%
Nov. 30, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 25 $0.00 189.0000 96,000,000 15.24% 0.00%
Aug. 31, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 22 $0.00 164.0000 96,000,000 15.49% 0.00%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 5520 $43.13 25,134.0000 96,000,000 28.14% 0.01%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 3302 $39.42 28,436.0000 96,000,000 13.14% 0.00%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer S Common Stock 12153 $59.17 16,283.0000 96,000,000 42.74% 0.01%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 5705 $0.00 0.0000 96,000,000 100.00% 0.01%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 5520 $0.00 2,761.0000 96,000,000 66.66% 0.01%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 3302 $0.00 6,605.0000 96,000,000 33.33% 0.00%
Aug. 28, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 5705 $49.60 19,614.0000 96,000,000 41.02% 0.01%
May 31, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer A Dividend Equivalent Rights 28 $0.00 142.0000 96,000,000 24.56% 0.00%
May 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 6761 $43.24 25,605.0000 96,000,000 35.88% 0.01%
May 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer S Common Stock 11696 $48.47 13,909.0000 96,000,000 45.68% 0.01%
May 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 5892 $0.00 0.0000 96,000,000 100.00% 0.01%
May 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Employee Stock Option (right to buy) 6761 $0.00 0.0000 96,000,000 100.00% 0.01%
May 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Chief Procurement Officer M Common Stock 5892 $43.30 18,844.0000 96,000,000 45.49% 0.01%
March 17, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ A Dividend Equivalent Rights 32 $0.00 114.0000 96,000,000 39.02% 0.00%
Feb. 25, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 133 $0.00 13,649.0000 96,000,000 0.98% 0.00%
Feb. 25, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ F Common Stock 697 $47.54 12,952.0000 96,000,000 5.11% 0.00%
Feb. 25, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Restricted Stock Units 2254 $0.00 0.0000 96,000,000 100.00% 0.00%
Feb. 25, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Dividend Equivalent Rights 133 $0.00 82.0000 96,000,000 61.86% 0.00%
Feb. 25, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 2254 $0.00 13,516.0000 96,000,000 20.01% 0.00%
Feb. 23, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 22 $0.00 11,643.0000 96,000,000 0.19% 0.00%
Feb. 23, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ F Common Stock 381 $47.57 11,262.0000 96,000,000 3.27% 0.00%
Feb. 23, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Restricted Stock Units 1100 $0.00 2,202.0000 96,000,000 33.31% 0.00%
Feb. 23, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Dividend Equivalent Rights 22 $0.00 215.0000 96,000,000 9.28% 0.00%
Feb. 23, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 1100 $0.00 11,621.0000 96,000,000 10.46% 0.00%
Feb. 22, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ A Restricted Stock Units 2887 $0.00 2,887.0000 96,000,000 9999.99% 0.00%
Feb. 22, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ A Employee Stock Option (right to buy) 8660 $0.00 8,660.0000 96,000,000 9999.99% 0.01%
Feb. 10, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 36 $0.00 10,846.0000 96,000,000 0.33% 0.00%
Feb. 10, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Restricted Stock Units 920 $0.00 920.0000 96,000,000 50.00% 0.00%
Feb. 10, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Dividend Equivalent Rights 36 $0.00 237.0000 96,000,000 13.19% 0.00%
Feb. 10, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ F Common Stock 325 $45.32 10,521.0000 96,000,000 3.00% 0.00%
Feb. 10, 2023 Allison Transmission Holdings Inc $ALSN van Niekerk Teresa VP, Global Purchasing & SQ M Common Stock 920 $0.00 10,810.0000 96,000,000 9.30% 0.00%