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LK

Lee Kalowski

QTTB
CFO AND PRESIDENT · Q32 BIO INC. · CIK 0001618273
FILING MIX · LIFETIME42%/58%
BUYS
23
SELLS
32
TOTAL VALUE
$3.17M
COMPANIES
2
ACTIVE SINCE
Jun 2019
HOLDINGS NOW
66,252
AVG SELL PX
$24.36
TRADE KIND
SHOWING 55 / 55
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
18 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Lee Kalowski, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d18+55.56%+1.38%+0.78%+0.60%-2.90%—
14d18+72.22%+1.74%+0.92%+0.82%-6.21%—
30d18+38.89%+7.72%+1.47%+6.25%+1.61%—
60d18+11.11%+30.32%+3.61%+26.71%+28.43%—
90d18+11.11%+34.27%+6.03%+28.92%+17.74%—
180d18(1 pending)+11.76%+53.31%+7.85%+34.79%+37.84%—
1y18(3 pending)+46.67%+56.12%+13.97%+42.15%-15.46%—
2y18(3 pending)+60.00%-5.28%+14.10%-19.38%-27.82%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
QTTB · 35,943 shares · as of Feb 25, 2026
040,33180,662120,992161,32320252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2019
2019
2019
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 23 buys / 32 sellsCOVERAGE · 28 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
QTTB
Q32 BIO INC.
SALE
CFO and President
3,995$4.51$18.0K35,943Feb 25, 2026Feb 27, 2026 ↗View →
QTTB
Q32 BIO INC.
PURCHASEGRANT
Stock grant
53,250——89,193Feb 24, 2026Mar 20, 2026 ↗View →
QTTB
Q32 BIO INC.
SALE
CFO and President
9,072$3.46$31.4K39,938Dec 2, 2025Dec 4, 2025 ↗View →
QTTB
Q32 BIO INC.
SALE
CFO and President
4,240$1.80$7.6K49,010Aug 26, 2025Aug 28, 2025 ↗View →
QTTB
Q32 BIO INC.
SALE
CFO and President
16,901——0Feb 24, 2025Feb 26, 2025 ↗View →
QTTB
Q32 BIO INC.
PURCHASEGRANT
Stock grant
16,901——16,901Feb 24, 2025Feb 26, 2025 ↗View →
QTTB
Q32 BIO INC.
PURCHASEGRANT
Stock grant
53,250——53,250Feb 24, 2025Feb 26, 2025 ↗View →
QTTB
Q32 BIO INC.
SALE
CFO and President
161,323——0Feb 24, 2025Feb 26, 2025 ↗View →
QTTB
Q32 BIO INC.
PURCHASEGRANT
Stock grant
161,323——161,323Feb 24, 2025Feb 26, 2025 ↗View →
QTTB
Q32 BIO INC.
PURCHASEGRANT
Stock grant
161,323——161,323Mar 25, 2024Mar 27, 2024 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
376$21.11$7.9K30,309Apr 3, 2023Apr 5, 2023 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
1,815$29.06$52.7K30,685Jan 3, 2023Jan 5, 2023 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
17,500——32,500Jan 3, 2023Jan 5, 2023 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
35,000——35,000Jan 3, 2023Jan 5, 2023 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
30,000——30,000Jan 3, 2022Jan 5, 2022 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
15,000——15,000Jan 3, 2022Jan 5, 2022 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
10,000$40.00$400.0K0Sep 2, 2021Sep 3, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
10,000$9.82$98.2K10,000Sep 2, 2021Sep 3, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
10,000——50,000Sep 2, 2021Sep 3, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,950——5,768Aug 27, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
7,950$8.73$69.4K7,950Aug 27, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,950$35.15$279.4K0Aug 27, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
550$8.76$4.8K550Aug 26, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
550$35.04$19.3K0Aug 26, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
550——13,718Aug 26, 2021Aug 27, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,500——59,774Aug 23, 2021Aug 25, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
7,500$1.60$12.0K7,500Aug 23, 2021Aug 25, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,500$33.02$247.7K0Aug 23, 2021Aug 25, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
12,500——67,274Jul 29, 2021Jul 30, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
12,500$1.63$20.4K12,500Jul 29, 2021Jul 30, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
8,996$31.24$281.0K3,504Jul 29, 2021Jul 30, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
3,204$32.13$102.9K300Jul 29, 2021Jul 30, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
300$32.81$9.8K0Jul 29, 2021Jul 30, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
15,000$1.59$23.9K15,000Jan 19, 2021Jan 21, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
15,000$30.00$450.0K0Jan 19, 2021Jan 21, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
15,000——79,774Jan 19, 2021Jan 21, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
10,000$1.60$16.0K10,000Jan 14, 2021Jan 15, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
10,000$25.00$250.0K0Jan 14, 2021Jan 15, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
10,000——94,774Jan 14, 2021Jan 15, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
70,500——70,500Jan 4, 2021Jan 5, 2021 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,500——104,774Dec 1, 2020Dec 3, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
7,500$1.56$11.7K7,500Dec 1, 2020Dec 3, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
7,500$22.50$168.8K0Dec 1, 2020Dec 3, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
530$20.00$10.6K0Nov 27, 2020Nov 30, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
530——112,274Nov 27, 2020Nov 30, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
530$1.56$827530Nov 27, 2020Nov 30, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
9,781——112,804Nov 25, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
9,781$1.56$15.3K9,781Nov 25, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
9,781$20.07$196.3K0Nov 25, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
17,189——122,585Nov 23, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
213$20.38$4.3K0Nov 23, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASE
President and CFO
17,189$1.56$26.8K17,189Nov 23, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
SALE
President and CFO
16,976$19.82$336.5K213Nov 23, 2020Nov 25, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
60,000——60,000Jan 2, 2020Jan 6, 2020 ↗View →
BCYC
BICYCLE THERAPEUTICS PLC
PURCHASEGRANT
Stock grant
283,414——283,414Jun 28, 2019Apr 27, 2020 ↗View →
Other insiders · QTTB
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About this filer
CIK 0001618273
ROLE
CFO and President
PRIMARY
QTTB
COMPANIES
2
ACTIVE SINCE
Jun 2019
MARKETPEEL · /INSIDER/0001618273DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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